Omron, S8FS-C Series

To Improve Reliability of Euipment, Start with Power Supply Selection

How does a Power Supply contribute to stable equipment operation?

Do your power supplies stop due to unexpected external disturbances?
You can increase your equipment operating rates by selecting Power Supplies that have a high resistance to external disturbances.

Designed to Withstand Abnormal Input Voltages Up to 300 VAC*1

In locations where the supply of power is not stable, it is common for abnormal voltages around 300 VAC to be input momentarily. The S8FS withstands this type of momentary abnormal input voltage.
*1. It is not a guaranteed value.

Improved Resistance to Noise of Several Tens of kHz from Inverters

Malfunctions in power supplies can be caused by strong noise of several tens of kHz transmitted from inverters or motors on the same AC line. OMRON measured the noise frequencies and sizes that occurred in actual machines in the past and used them as a standard to improve the noise resistance of the S8FS by harnessing circuit design knowhow to prevent noise from reaching the control section

Lightening Surge Resistance of 1.5 Times*1 the Standard Value

The catalog value conforms to the value specified in IEC 61000-4-5, but it has been confirmed that the ability has a margin of 1.5 times that value.
*1. It is not a guaranteed value.

Design with details in mind provides stable quality and reliability.

*2. Valid only for the following operating conditions: Average ambient operating temperature of the product at 40°C max.,
average load rate of 80% max., and srandards mounting.

Automatic lines are used in the manufacturing processes to ensure stable Power Supply quality.

OMRON boasts a 38-year track record in Power Supplies.

Ratings, Characteristics, and Functions

Power rating			15 W
Output voltage			5 V	12 V	15 V	24 V
Efficiency *		115 VAC input	80% typ.	84% typ.	84% typ.	85% typ.
Efficiency *		230 VAC input	82% typ.	85% typ.	86% typ.	87% typ.
Input	Voltage range *		Single phase 85 to 264 VAC, 120 to 370 VDC (The L terminal for the DC input is the positive side and safety standards do not apply.) (Derating is required according to the input voltage. Refer to Derating Curves on Data Sheet.)
	Frequency *		50 /60 Hz (47 to 450 Hz)
	Current *	115 VAC input	0.3 A typ.
	Current *	230 VAC input	0.19 A typ.
	Power factor		--
	Leakage current	115 VAC input	0.05 mA	0.05 mA	0.05 mA	0.05 mA
	Leakage current	230 VAC input	0.10 mA	0.10 mA	0.10 mA	0.10 mA
	Inrush current * (for a cold start at 25°)	115 VAC input	16 A typ.
	Inrush current * (for a cold start at 25°)	230 VAC input	32 A typ.
Output	Rated Output Current		3 A	1.3 A	1 A	0.7 A
	Voltage adjustment range *		-10% to 10% (with V. ADJ)
	Ripple & Noise voltage *	100 to 240 VAC input	30 mVp-p max.	30 mVp-p max.	40 mVp-p max.	30 mVp-p max.
	Input variation influence *		0.5% max.
	Load variation influence *		1.0% max.
	Temperature variation influence	100 to 240 VAC input	0.03%/°C max.
	Startup time *	115 VAC input	490 ms typ.	500 ms typ.	470 ms typ.	480 ms typ.
	Startup time *	230 VAC input	470 ms typ.	480 ms typ.	450 ms typ.	460 ms typ.
	Hold time *	115 VAC input	14 ms typ.	16 ms typ.	18 ms typ.	15 ms typ.
	Hold time *	230 VAC input	83 ms typ.	87 ms typ.	92 ms typ.	79 ms typ.
Addi- tional func- tions	Overload protection		Yes, automatic reset
	Overvoltage protection *		Yes, 115% or higher of rated output voltage, power shut off (shut off the input voltage and turn on the input again)
	Overheat protection		No
	Series operation		Yes (For up to 2 Power Supplies, external diodes are required.)
	Parallel operation		No (However, backup operation is possible, external diodes are required.)
	Remote sensing		No
	Remote control		No
	Output indicator		Yes (LED: Green)
Insula- tion	Withstand voltage		3 kVAC for 1 min. (between all input terminals and output terminals) current cutoff 20 mA
			2 kVAC for 1 min. (between all input terminals and PE terminals) current cutoff 20 mA
			1 kVAC for 1 min. (between all output terminals and PE terminals) current cutoff 20 mA
	Insulation resistance		100 MΩ min. (between all output terminals and all input terminals/PE terminals) at 500 VDC
Envi- ron- ment	Ambient operating temperature		-20 to 60°C (Derating is required according to the temperature. Refer to Derating Curves on Data Sheet.) (with no condensation or icing)
	Storage temperature		-40 to 85°C (with no condensation or icing)
	Ambient operating humidity		20% to 90% (Storage humidity: 10% to 95%)
	Vibration resistance		10 to 55 Hz, 0.375-mm half amplitude for 2 h each in X, Y, and Z directions 10 to 500 Hz, 0.26-mm half amplitude for 1 h each in X, Y, and Z directions
	Shock resistance		150 m/s², 3 times each in ±X, ±Y, ±Z directions
Relia- bility	MTBF		135,000 hrs min.
Relia- bility	Life expectancy *		10 years min.
Con- struc- tion	Dimensions (W × H × D)		Refer to Dimensions.
	Weight		150 g max.
	Cooling fan		No
	Degree of protection		--
Stan- dards	Harmonic current emissions		Conforms to EN 61000-3-2, GB17625.1
	EMI	Conducted Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMI	Radiated Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMS		Conforms to EN 61204-3 high severity levels
	Safety Standards		Approved Standards UL: cURus UL 60950-1 (Recognition) OVC II Pol2 CSA: cURus C22.2 No60950-1 CCC: GB4943 Conformed Standards EN: EN 60950-1 OVC II Pol2
	Marine Standards		No
	SEMI		No

* Refer to Conditions of below.

Power rating			25 W
Output voltage			5 V	12 V	15 V	24 V
Efficiency *		115 VAC input	80% typ.	84% typ.	85% typ.	86% typ.
Efficiency *		230 VAC input	82% typ.	86% typ.	88% typ.	88% typ.
Input	Voltage range *		Single phase 85 to 264 VAC, 120 to 370 VDC (The L terminal for the DC input is the positive side and safety standards do not apply.) (Derating is required according to the input voltage. Refer to Derating Curves on Data Sheet.)
	Frequency *		50 /60 Hz (47 to 450 Hz)
	Current *	115 VAC input	0.49 A typ.
	Current *	230 VAC input	0.3 A typ.
	Power factor		--
	Leakage current	115 VAC input	0.10 mA	0.10 mA	0.10 mA	0.10 mA
	Leakage current	230 VAC input	0.20 mA	0.20 mA	0.20 mA	0.20 mA
	Inrush current * (for a cold start at 25°)	115 VAC input	16 A typ.
	Inrush current * (for a cold start at 25°)	230 VAC input	32 A typ.
Output	Rated Output Current		5 A	2.1 A	1.7 A	1.1 A
	Voltage adjustment range *		-10% to 10% (with V. ADJ)
	Ripple & Noise voltage *	100 to 240 VAC input	20 mVp-p max.	20 mVp-p max.	30 mVp-p max.	40 mVp-p max.
	Input variation influence *		0.5% max.
	Load variation influence *		1.0% max.
	Temperature variation influence	100 to 240 VAC input	0.03%/°C max.
	Startup time *	115 VAC input	390 ms typ.	340 ms typ.	400 ms typ.	360 ms typ.
	Startup time *	230 VAC input	360 ms typ.	350 ms typ.	400 ms typ.	360 ms typ.
	Hold time *	115 VAC input	17 ms typ.	22 ms typ.	23 ms typ.	21 ms typ.
	Hold time *	230 VAC input	103 ms typ.	113 ms typ.	117 ms typ.	112 ms typ.
Addi- tional func- tions	Overload protection		Yes, automatic reset
	Overvoltage protection *		Yes, 115% or higher of rated output voltage, power shut off (shut off the input voltage and turn on the input again)
	Overheat protection		No
	Series operation		Yes (For up to 2 Power Supplies, external diodes are required.)
	Parallel operation		No (However, backup operation is possible, external diodes are required.)
	Remote sensing		No
	Remote control		No
	Output indicator		Yes (LED: Green)
Insula- tion	Withstand voltage		3 kVAC for 1 min. (between all input terminals and output terminals) current cutoff 20 mA
			2 kVAC for 1 min. (between all input terminals and PE terminals) current cutoff 20 mA
			1 kVAC for 1 min. (between all output terminals and PE terminals) current cutoff 20 mA
	Insulation resistance		100 MΩ min. (between all output terminals and all input terminals/PE terminals) at 500 VDC
Envi- ron- ment	Ambient operating temperature		-20 to 60°C (Derating is required according to the temperature. Refer to Derating Curves on Data Sheet.) (with no condensation or icing)
	Storage temperature		-40 to 85°C (with no condensation or icing)
	Ambient operating humidity		20% to 90% (Storage humidity: 10% to 95%)
	Vibration resistance		10 to 55 Hz, 0.375-mm half amplitude for 2 h each in X, Y, and Z directions 10 to 500 Hz, 0.26-mm half amplitude for 1 h each in X, Y, and Z directions
	Shock resistance		150 m/s², 3 times each in ±X, ±Y, ±Z directions
Relia- bility	MTBF		135,000 hrs min.
Relia- bility	Life expectancy *		10 years min.
Con- struc- tion	Dimensions (W × H × D)		Refer to Dimensions.
	Weight		250 g max.
	Cooling fan		No
	Degree of protection		--
Stan- dards	Harmonic current emissions		Conforms to EN 61000-3-2, GB17625.1
	EMI	Conducted Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMI	Radiated Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMS		Conforms to EN 61204-3 high severity levels
	Safety Standards		Approved Standards UL: cURus UL 60950-1 (Recognition) OVC II Pol2 CSA: cURus C22.2 No60950-1 CCC: GB4943 Conformed Standards EN: EN 60950-1 OVC II Pol2
	Marine Standards		No
	SEMI		No

* Refer to Conditions of below.

Power rating			35 W
Output voltage			5 V	12 V	15 V	24 V
Efficiency *		115 VAC input	81% typ.	83% typ.	84% typ.	87% typ.
Efficiency *		230 VAC input	81% typ.	84% typ.	84% typ.	87% typ.
Input	Voltage range *		Single phase 85 to 264 VAC, 120 to 370 VDC (The L terminal for the DC input is the positive side and safety standards do not apply.) (Derating is required according to the input voltage. Refer to Derating Curves on Data Sheet.)
	Frequency *		50 /60 Hz (47 to 450 Hz)
	Current *	115 VAC input	0.66 A typ.
	Current *	230 VAC input	0.41 A typ.
	Power factor		--
	Leakage current	115 VAC input	0.15 mA	0.15 mA	0.15 mA	0.15 mA
	Leakage current	230 VAC input	0.30 mA	0.25 mA	0.25 mA	0.25 mA
	Inrush current * (for a cold start at 25°)	115 VAC input	16 A typ.
	Inrush current * (for a cold start at 25°)	230 VAC input	32 A typ.
Output	Rated Output Current		7 A	3 A	2.4 A	1.5 A
	Voltage adjustment range *		-10% to 10% (with V. ADJ)
	Ripple & Noise voltage *	100 to 240 VAC input	80 mVp-p max.	90 mVp-p max.	90 mVp-p max.	80 mVp-p max.
	Input variation influence *		0.5% max.
	Load variation influence *		1.0% max.
	Temperature variation influence	100 to 240 VAC input	0.03%/°C max.
	Startup time *	115 VAC input	750 ms typ.	750 ms typ.	760 ms typ.	770 ms typ.
	Startup time *	230 VAC input	700 ms typ.	690 ms typ.	710 ms typ.	720 ms typ.
	Hold time *	115 VAC input	13 ms typ.	14 ms typ.	14 ms typ.	15 ms typ.
	Hold time *	230 VAC input	74 ms typ.	75 ms typ.	75 ms typ.	79 ms typ.
Addi- tional func- tions	Overload protection		Yes, automatic reset
	Overvoltage protection *		Yes, 115% or higher of rated output voltage, power shut off (shut off the input voltage and turn on the input again)
	Overheat protection		No
	Series operation		Yes (For up to 2 Power Supplies, external diodes are required.)
	Parallel operation		No (However, backup operation is possible, external diodes are required.)
	Remote sensing		No
	Remote control		No
	Output indicator		Yes (LED: Green)
Insula- tion	Withstand voltage		3 kVAC for 1 min. (between all input terminals and output terminals) current cutoff 20 mA
			2 kVAC for 1 min. (between all input terminals and PE terminals) current cutoff 20 mA
			1 kVAC for 1 min. (between all output terminals and PE terminals) current cutoff 20 mA
	Insulation resistance		100 MΩ min. (between all output terminals and all input terminals/PE terminals) at 500 VDC
Envi- ron- ment	Ambient operating temperature		-20 to 60°C (Derating is required according to the temperature. Refer to Derating Curves on Data Sheet.) (with no condensation or icing)
	Storage temperature		-40 to 85°C (with no condensation or icing)
	Ambient operating humidity		20% to 90% (Storage humidity: 10% to 95%)
	Vibration resistance		10 to 55 Hz, 0.375-mm half amplitude for 2 h each in X, Y, and Z directions 10 to 500 Hz, 0.26-mm half amplitude for 1 h each in X, Y, and Z directions
	Shock resistance		150 m/s², 3 times each in ±X, ±Y, ±Z directions
Relia- bility	MTBF		135,000 hrs min.
Relia- bility	Life expectancy *		10 years min.
Con- struc- tion	Dimensions (W × H × D)		Refer to Dimensions.
	Weight		250 g max.
	Cooling fan		No
	Degree of protection		--
Stan- dards	Harmonic current emissions		Conforms to EN 61000-3-2, GB17625.1
	EMI	Conducted Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMI	Radiated Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMS		Conforms to EN 61204-3 high severity levels
	Safety Standards		Approved Standards UL: cURus UL 60950-1 (Recognition) OVC II Pol2 CSA: cURus C22.2 No60950-1 CCC: GB4943 Conformed Standards EN: EN 60950-1 OVC II Pol2
	Marine Standards		No
	SEMI		No

* Refer to Conditions of below.

Power rating			50 W
Output voltage			5 V	12 V	15 V	24 V	48 V
Efficiency *		115 VAC input	79% typ.	83% typ.	84% typ.	86% typ.	87% typ.
Efficiency *		230 VAC input	80% typ.	84% typ.	85% typ.	86% typ.	87% typ.
Input	Voltage range *		Single phase 85 to 264 VAC, 120 to 370 VDC (The L terminal for the DC input is the positive side and safety standards do not apply.) (Derating is required according to the input voltage. Refer to Derating Curves on Data Sheet.)
	Frequency *		50 /60 Hz (47 to 450 Hz)
	Current *	115 VAC input	0.97 A typ.
	Current *	230 VAC input	0.59 A typ.
	Power factor		--
	Leakage current	115 VAC input	0.25 mA	0.25 mA	0.25 mA	0.25 mA	0.25 mA
	Leakage current	230 VAC input	0.60 mA	0.55 mA	0.55 mA	0.55 mA	0.55 mA
	Inrush current * (for a cold start at 25°)	115 VAC input	16 A typ.
	Inrush current * (for a cold start at 25°)	230 VAC input	32 A typ.
Output	Rated Output Current		10 A	4.2 A	3.4 A	2.2 A	1.1 A
	Voltage adjustment range *		-10% to 10% (with V. ADJ)
	Ripple & Noise voltage *	100 to 240 VAC input	80 mVp-p max.	110 mVp-p max.	100 mVp-p max.	100 mVp-p max.	120 mVp-p max.
	Input variation influence *		0.5% max.
	Load variation influence *		1.0% max.
	Temperature variation influence	100 to 240 VAC input	0.03%/°C max.
	Startup time *	115 VAC input	730 ms typ.	730 ms typ.	710 ms typ.	710 ms typ.	770 ms typ.
	Startup time *	230 VAC input	680 ms typ.	670 ms typ.	610 ms typ.	640 ms typ.	690 ms typ.
	Hold time *	115 VAC input	12 ms typ.	14 ms typ.	14 ms typ.	14 ms typ.	14 ms typ.
	Hold time *	230 VAC input	71 ms typ.	77 ms typ.	78 ms typ.	77 ms typ.	80 ms typ.
Addi- tional func- tions	Overload protection		Yes, automatic reset
	Overvoltage protection *		Yes, 115% or higher of rated output voltage, power shut off (shut off the input voltage and turn on the input again)
	Overheat protection		No
	Series operation		Yes (For up to 2 Power Supplies, external diodes are required.)
	Parallel operation		No (However, backup operation is possible, external diodes are required.)
	Remote sensing		No
	Remote control		No
	Output indicator		Yes (LED: Green)
Insula- tion	Withstand voltage		3 kVAC for 1 min. (between all input terminals and output terminals) current cutoff 20 mA
			2 kVAC for 1 min. (between all input terminals and PE terminals) current cutoff 20 mA
			1 kVAC for 1 min. (between all output terminals and PE terminals) current cutoff 20 mA
	Insulation resistance		100 MΩ min. (between all output terminals and all input terminals/PE terminals) at 500 VDC
Envi- ron- ment	Ambient operating temperature		-20 to 60°C (Derating is required according to the temperature. Refer to Derating Curves on Data Sheet.) (with no condensation or icing)
	Storage temperature		-40 to 85°C (with no condensation or icing)
	Ambient operating humidity		20% to 90% (Storage humidity: 10% to 95%)
	Vibration resistance		10 to 55 Hz, 0.375-mm half amplitude for 2 h each in X, Y, and Z directions 10 to 500 Hz, 0.26-mm half amplitude for 1 h each in X, Y, and Z directions
	Shock resistance		150 m/s², 3 times each in ±X, ±Y, ±Z directions
Relia- bility	MTBF		135,000 hrs min.
Relia- bility	Life expectancy *		10 years min.
Con- struc- tion	Dimensions (W × H × D)		Refer to Dimensions.
	Weight		300 g max.
	Cooling fan		No
	Degree of protection		--
Stan- dards	Harmonic current emissions		Conforms to EN 61000-3-2, GB17625.1
	EMI	Conducted Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMI	Radiated Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMS		Conforms to EN 61204-3 high severity levels
	Safety Standards		Approved Standards UL: cURus UL 60950-1 (Recognition) OVC II Pol2 CSA: cURus C22.2 No60950-1 CCC: GB4943 Conformed Standards EN: EN 60950-1 OVC II Pol2
	Marine Standards		No
	SEMI		No

* Refer to Conditions of below.

Power rating			75 W
Output voltage			5 V	12 V	15 V	24 V	48 V
Efficiency *		115 VAC input	75% typ.	83% typ.	84% typ.	87% typ.	87% typ.
Efficiency *		230 VAC input	77% typ.	83% typ.	84% typ.	87% typ.	87% typ.
Input	Voltage range *		Single phase 85 to 264 VAC, 120 to 370 VDC (The L terminal for the DC input is the positive side and safety standards do not apply.) (Derating is required according to the input voltage. Refer to Derating Curves on Data Sheet.)
	Frequency *		50 /60 Hz (47 to 450 Hz)
	Current *	115 VAC input	1.4 A typ.
	Current *	230 VAC input	0.83 A typ.
	Power factor		--
	Leakage current	115 VAC input	0.25 mA	0.25 mA	0.25 mA	0.25 mA	0.25 mA
	Leakage current	230 VAC input	0.60 mA	0.60 mA	0.60 mA	0.60 mA	0.60 mA
	Inrush current * (for a cold start at 25°)	115 VAC input	16 A typ.
	Inrush current * (for a cold start at 25°)	230 VAC input	32 A typ.
Output	Rated Output Current		14 A	6.2 A	5 A	3.2 A	1.6 A
	Voltage adjustment range *		-10% to 10% (with V. ADJ)
	Ripple & Noise voltage *	100 to 240 VAC input	80 mVp-p max.	110 mVp-p max.	90 mVp-p max.	110 mVp-p max.	140 mVp-p max.
	Input variation influence *		0.5% max.
	Load variation influence *		1.0% max.
	Temperature variation influence	100 to 240 VAC input	0.03%/°C max.
	Startup time *	115 VAC input	750 ms typ.	720 ms typ.	730 ms typ.	750 ms typ.	700 ms typ.
	Startup time *	230 VAC input	710 ms typ.	680 ms typ.	690 ms typ.	690 ms typ.	730 ms typ.
	Hold time *	115 VAC input	12 ms typ.	13 ms typ.	13 ms typ.	14 ms typ.	15 ms typ.
	Hold time *	230 VAC input	75 ms typ.	74 ms typ.	74 ms typ.	76 ms typ.	78 ms typ.
Addi- tional func- tions	Overload protection		Yes, automatic reset
	Overvoltage protection *		Yes, 115% or higher of rated output voltage, power shut off (shut off the input voltage and turn on the input again)
	Overheat protection		No
	Series operation		Yes (For up to 2 Power Supplies, external diodes are required.)
	Parallel operation		No (However, backup operation is possible, external diodes are required.)
	Remote sensing		No
	Remote control		No
	Output indicator		Yes (LED: Green)
Insula- tion	Withstand voltage		3 kVAC for 1 min. (between all input terminals and output terminals) current cutoff 20 mA
			2 kVAC for 1 min. (between all input terminals and PE terminals) current cutoff 20 mA
			1 kVAC for 1 min. (between all output terminals and PE terminals) current cutoff 20 mA
	Insulation resistance		100 MΩ min. (between all output terminals and all input terminals/PE terminals) at 500 VDC
Envi- ron- ment	Ambient operating temperature		-20 to 60°C (Derating is required according to the temperature. Refer to Derating Curves on Data Sheet.) (with no condensation or icing)
	Storage temperature		-40 to 85°C (with no condensation or icing)
	Ambient operating humidity		20% to 90% (Storage humidity: 10% to 95%)
	Vibration resistance		10 to 55 Hz, 0.375-mm half amplitude for 2 h each in X, Y, and Z directions 10 to 500 Hz, 0.26-mm half amplitude for 1 h each in X, Y, and Z directions
	Shock resistance		150 m/s², 3 times each in ±X, ±Y, ±Z directions
Relia- bility	MTBF		135,000 hrs min.
Relia- bility	Life expectancy *		10 years min.
Con- struc- tion	Dimensions (W × H × D)		Refer to Dimensions.
	Weight		350 g max.
	Cooling fan		No
	Degree of protection		--
Stan- dards	Harmonic current emissions		Conforms to EN 61000-3-2, GB17625.1
	EMI	Conducted Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMI	Radiated Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMS		Conforms to EN 61204-3 high severity levels
	Safety Standards		Approved Standards UL: cURus UL 60950-1 (Recognition) OVC II Pol2 CSA: cURus C22.2 No60950-1 CCC: GB4943 Conformed Standards EN: EN 60950-1 OVC II Pol2
	Marine Standards		No
	SEMI		No

* Refer to Conditions of below.

Power rating			100 W
Output voltage			5 V	12 V	15 V	24 V	36 V	48 V
Efficiency *		115 VAC input	80% typ.	82% typ.	83% typ.	85% typ.	86% typ.	87% typ.
Efficiency *		230 VAC input	81% typ.	83% typ.	84% typ.	87% typ.	87% typ.	88% typ.
Input	Voltage range *		Single phase 85 to 132 VAC, 176 to 264 VAC, 248 to 373 VDC Select with the switch. (The L terminal for the DC input is the positive side and safety standards do not apply.) (Derating is required according to the input voltage. Refer to Derating Curves on Data Sheet.)
	Frequency *		50 /60 Hz (47 to 450 Hz)
	Current *	115 VAC input	2 A typ.
	Current *	230 VAC input	1.1 A typ.
	Power factor		--
	Leakage current	115 VAC input	0.35 mA	0.35 mA	0.35 mA	0.35 mA	0.40 mA	0.40 mA
	Leakage current	230 VAC input	0.60 mA	0.55 mA	0.60 mA	0.50 mA	0.60 mA	0.60 mA
	Inrush current * (for a cold start at 25°)	115 VAC input	32 A typ.
	Inrush current * (for a cold start at 25°)	230 VAC input	32 A typ.
Output	Rated Output Current		20 A	8.5 A	7 A	4.5 A	2.8 A	2.3 A
	Voltage adjustment range *		-10% to 10% (with V. ADJ)
	Ripple & Noise voltage *	100 to 120 VAC/200 to 240 VAC input	70 mVp-p max.	100 mVp-p max.	70 mVp-p max.	120 mVp-p max.	90 mVp-p max.	120 mVp-p max.
	Input variation influence *		0.5% max.
	Load variation influence *		1.0% max.
	Temperature variation influence	100 to 120 VAC/200 to 240 VAC input	0.03%/°C max.
	Startup time *	115 VAC input	710 ms typ.	440 ms typ.	440 ms typ.	430 ms typ.	450 ms typ.	430 ms typ.
	Startup time *	230 VAC input	720 ms typ.	700 ms typ.	720 ms typ.	660 ms typ.	690 ms typ.	660 ms typ.
	Hold time *	115 VAC input	23 ms typ.	37 ms typ.	36 ms typ.	34 ms typ.	36 ms typ.	34 ms typ.
	Hold time *	230 VAC input	29 ms typ.	40 ms typ.	39 ms typ.	39 ms typ.	41 ms typ.	38 ms typ.
Addi- tional func- tions	Overload protection		Yes, automatic reset
	Overvoltage protection *		Yes, 115% or higher of rated output voltage, power shut off (shut off the input voltage and turn on the input again)
	Overheat protection		No
	Series operation		Yes (For up to 2 Power Supplies, external diodes are required.)
	Parallel operation		No (However, backup operation is possible, external diodes are required.)
	Remote sensing		No
	Remote control		No
	Output indicator		Yes (LED: Green)
Insula- tion	Withstand voltage		3 kVAC for 1 min. (between all input terminals and output terminals) current cutoff 20 mA
			2 kVAC for 1 min. (between all input terminals and PE terminals) current cutoff 20 mA
			1 kVAC for 1 min. (between all output terminals and PE terminals) current cutoff 20 mA
	Insulation resistance		100 MΩ min. (between all output terminals and all input terminals/PE terminals) at 500 VDC
Envi- ron- ment	Ambient operating temperature		-20 to 60°C (Derating is required according to the temperature. Refer to Derating Curves on Data Sheet.) (with no condensation or icing)
	Storage temperature		-40 to 85°C (with no condensation or icing)
	Ambient operating humidity		20% to 90% (Storage humidity: 10% to 95%)
	Vibration resistance		10 to 55 Hz, 0.375-mm half amplitude for 2 h each in X, Y, and Z directions 10 to 500 Hz, 0.26-mm half amplitude for 1 h each in X, Y, and Z directions
	Shock resistance		150 m/s², 3 times each in ±X, ±Y, ±Z directions
Relia- bility	MTBF		135,000 hrs min.
Relia- bility	Life expectancy *		10 years min.
Con- struc- tion	Dimensions (W × H × D)		Refer to Dimensions.
	Weight		400 g max.
	Cooling fan		No
	Degree of protection		--
Stan- dards	Harmonic current emissions		Conforms to EN 61000-3-2, GB17625.1
	EMI	Conducted Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMI	Radiated Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMS		Conforms to EN 61204-3 high severity levels
	Safety Standards		Approved Standards UL: cURus UL 60950-1 (Recognition) OVC II Pol2 CSA: cURus C22.2 No60950-1 CCC: GB4943 Conformed Standards EN: EN 60950-1 OVC II Pol2
	Marine Standards		No
	SEMI		No

* Refer to Conditions of below.

Power rating			150 W
Output voltage			5 V	12 V	15 V	24 V	36 V	48 V
Efficiency *		115 VAC input	81% typ.	84% typ.	85% typ.	86% typ.	86% typ.	87% typ.
Efficiency *		230 VAC input	82% typ.	85% typ.	86% typ.	87% typ.	87% typ.	88% typ.
Input	Voltage range *		Single phase 90 to 132 VAC , Single phase 180 to 264 VAC , 254 to 373 VDC Select with the switch. (The L terminal for the DC input is the positive side and safety standards do not apply.) (Derating is required according to the input voltage. Refer to Derating Curves on Data Sheet.)
	Frequency *		50 /60 Hz (47 to 450 Hz)
	Current *	115 VAC input	2.8 A typ.
	Current *	230 VAC input	1.6 A typ.
	Power factor		--
	Leakage current	115 VAC input	0.50 mA	0.50 mA	0.50 mA	0.50 mA	0.40 mA	0.50 mA
	Leakage current	230 VAC input	0.75 mA	0.75 mA	0.75 mA	0.70 mA	0.60 mA	0.70 mA
	Inrush current * (for a cold start at 25°)	115 VAC input	32 A typ.
	Inrush current * (for a cold start at 25°)	230 VAC input	32 A typ.
Output	Rated Output Current		26 A	12.5 A	10 A	6.5 A	4.3 A	3.3 A
	Voltage adjustment range *		-10% to 10% (with V. ADJ)
	Ripple & Noise voltage *	100 to 120 VAC/200 to 240 VAC input	50 mVp-p max.	90 mVp-p max.	110 mVp-p max.	100 mVp-p max.	200 mVp-p max.	120 mVp-p max.
	Input variation influence *		0.5% max.
	Load variation influence *		1.0% max.
	Temperature variation influence	100 to 120 VAC/200 to 240 VAC input	0.03%/°C max.
	Startup time *	115 VAC input	770 ms typ.	730 ms typ.	740 ms typ.	770 ms typ.	730 ms typ.	760 ms typ.
	Startup time *	230 VAC input	750 ms typ.	720 ms typ.	730 ms typ.	760 ms typ.	720 ms typ.	750 ms typ.
	Hold time *	115 VAC input	29 ms typ.	24 ms typ.	27 ms typ.	23 ms typ.	23 ms typ.	21 ms typ.
	Hold time *	230 VAC input	35 ms typ.	30 ms typ.	31 ms typ.	28 ms typ.	29 ms typ.	27 ms typ.
Addi- tional func- tions	Overload protection		Yes, automatic reset
	Overvoltage protection *		Yes, 115% or higher of rated output voltage, power shut off (shut off the input voltage and turn on the input again)
	Overheat protection		No
	Series operation		Yes (For up to 2 Power Supplies, external diodes are required.)
	Parallel operation		No (However, backup operation is possible, external diodes are required.)
	Remote sensing		No
	Remote control		No
	Output indicator		Yes (LED: Green)
Insula- tion	Withstand voltage		3 kVAC for 1 min. (between all input terminals and output terminals) current cutoff 20 mA
			2 kVAC for 1 min. (between all input terminals and PE terminals) current cutoff 20 mA
			1 kVAC for 1 min. (between all output terminals and PE terminals) current cutoff 20 mA
	Insulation resistance		100 MΩ min. (between all output terminals and all input terminals/PE terminals) at 500 VDC
Envi- ron- ment	Ambient operating temperature		-20 to 60°C (Derating is required according to the temperature. Refer to Derating Curves on Data Sheet.) (with no condensation or icing)
	Storage temperature		-40 to 85°C (with no condensation or icing)
	Ambient operating humidity		20% to 90% (Storage humidity: 10% to 95%)
	Vibration resistance		10 to 55 Hz, 0.375-mm half amplitude for 2 h each in X, Y, and Z directions 10 to 500 Hz, 0.26-mm half amplitude for 1 h each in X, Y, and Z directions
	Shock resistance		150 m/s², 3 times each in ±X, ±Y, ±Z directions
Relia- bility	MTBF		135,000 hrs min.
Relia- bility	Life expectancy *		10 years min.
Con- struc- tion	Dimensions (W × H × D)		Refer to Dimensions.
	Weight		500 g max.
	Cooling fan		No
	Degree of protection		--
Stan- dards	Harmonic current emissions		Conforms to EN 61000-3-2, GB17625.1
	EMI	Conducted Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMI	Radiated Emissions	Conforms to EN 61204-3 Class B, EN 55011 Class B, GB9254
	EMS		Conforms to EN 61204-3 high severity levels
	Safety Standards		Approved Standards UL: cURus UL 60950-1 (Recognition) OVC II Pol2 CSA: cURus C22.2 No60950-1 CCC: GB4943 Conformed Standards EN: EN 60950-1 OVC II Pol2
	Marine Standards		No
	SEMI		No

* Refer to Conditions of below.

Power rating			200 W
Output voltage			5 V	12 V	24 V	36 V	48 V
Efficiency *		115 VAC input	81% typ.	85% typ.	88% typ.	89% typ.	88% typ.
Efficiency *		230 VAC input	81% typ.	87% typ.	88% typ.	90% typ.	90% typ.
Input	Voltage range *		Single phase 90 to 132 VAC , Single phase 180 to 264 VAC , 254 to 373 VDC Select with the switch. (The L terminal for the DC input is the positive side and safety standards do not apply.) (Derating is required according to the input voltage. Refer to Derating Curves on Data Sheet.)
	Frequency *		50 /60 Hz (47 to 450 Hz)
	Current *	115 VAC input	4 A typ.
	Current *	230 VAC input	2.3 A typ.
	Power factor		--
	Leakage current	115 VAC input	0.35 mA	0.25 mA	0.40 mA	0.20 mA	0.40 mA
	Leakage current	230 VAC input	0.60 mA	0.50 mA	0.75 mA	0.45 mA	0.80 mA
	Inrush current * (for a cold start at 25°)	115 VAC input	16 A typ.
	Inrush current * (for a cold start at 25°)	230 VAC input	32 A typ.
Output	Rated Output Current		40 A	17 A	8.8 A	5.9 A	4.43 A
	Voltage adjustment range *		-10% to 10% (with V. ADJ)
	Ripple & Noise voltage *	100 to 120 VAC/200 to 240 VAC input	60 mVp-p max.	60 mVp-p max.	110 mVp-p max.	130 mVp-p max.	120 mVp-p max.
	Input variation influence *		0.5% max.
	Load variation influence *		1.0% max.
	Temperature variation influence	100 to 120 VAC/200 to 240 VAC input	0.03%/°C max.
	Startup time *	115 VAC input	620 ms typ.	630 ms typ.	580 ms typ.	630 ms typ.	620 ms typ.
	Startup time *	230 VAC input	600 ms typ.	610 ms typ.	550 ms typ.	600 ms typ.	600 ms typ.
	Hold time *	115 VAC input	32 ms typ.	30 ms typ.	38 ms typ.	30 ms typ.	31 ms typ.
	Hold time *	230 VAC input	37 ms typ.	35 ms typ.	45 ms typ.	37 ms typ.	37 ms typ.
Addi- tional func- tions	Overload protection		Yes, automatic reset
	Overvoltage protection *		Yes, 115% or higher of rated output voltage, power shut off (shut off the input voltage and turn on the input again)
	Overheat protection		No
	Series operation		Yes (For up to 2 Power Supplies, external diodes are required.)
	Parallel operation		No (However, backup operation is possible, external diodes are required.)
	Remote sensing		No
	Remote control		No
	Output indicator		Yes (LED: Green)
Insula- tion	Withstand voltage		3 kVAC for 1 min. (between all input terminals and output terminals) current cutoff 20 mA
			2 kVAC for 1 min. (between all input terminals and PE terminals) current cutoff 20 mA
			1 kVAC for 1 min. (between all output terminals and PE terminals) current cutoff 20 mA
	Insulation resistance		100 MΩ min. (between all output terminals and all input terminals/PE terminals) at 500 VDC
Envi- ron- ment	Ambient operating temperature		-20 to 50°C (Derating is required according to the temperature. Refer to Derating Curves on Data Sheet.) (with no condensation or icing)
	Storage temperature		-40 to 85°C (with no condensation or icing)
	Ambient operating humidity		20% to 90% (Storage humidity: 10% to 95%)
	Vibration resistance		10 to 55 Hz, 0.375-mm half amplitude for 2 h each in X, Y, and Z directions 10 to 500 Hz, 0.26-mm half amplitude for 1 h each in X, Y, and Z directions
	Shock resistance		150 m/s², 3 times each in ±X, ±Y, ±Z directions
Relia- bility	MTBF		135,000 hrs min.
Relia- bility	Life expectancy *		10 years min.
Con- struc- tion	Dimensions (W × H × D)		Refer to Dimensions.
	Weight		700 g max.
	Cooling fan		No
	Degree of protection		--
Stan- dards	Harmonic current emissions		--
	EMI	Conducted Emissions	Conforms to EN 61204-3 Class A, EN 55011 Class A
	EMI	Radiated Emissions	Conforms to EN 61204-3 Class A, EN 55011 Class A
	EMS		Conforms to EN 61204-3 high severity levels
	Safety Standards		Approved Standards UL: cURus UL 60950-1 (Recognition) OVC II Pol2 CSA: cURus C22.2 No60950-1 Conformed Standards EN: EN 60950-1 OVC II Pol2
	Marine Standards		No
	SEMI		No

* Refer to Conditions of below.

Power rating			350 W
Output voltage			5 V	12 V	24 V	36 V	48 V
Efficiency *		115 VAC input	77% typ.	83% typ.	86% typ.	87% typ.	87% typ.
Efficiency *		230 VAC input	78% typ.	85% typ.	88% typ.	88% typ.	88% typ.
Input	Voltage range *		Single phase 90 to 132 VAC , Single phase 180 to 264 VAC , 254 to 373 VDC Select with the switch. (The L terminal for the DC input is the positive side and safety standards do not apply.) (Derating is required according to the input voltage. Refer to Derating Curves on Data Sheet.)
	Frequency *		50 /60 Hz (47 to 450 Hz)
	Current *	115 VAC input	6.4 A typ.
	Current *	230 VAC input	3.5 A typ.
	Power factor		--
	Leakage current	115 VAC input	0.40 mA	0.40 mA	0.40 mA	0.40 mA	0.40 mA
	Leakage current	230 VAC input	0.75 mA	0.80 mA	0.75 mA	0.80 mA	0.80 mA
	Inrush current * (for a cold start at 25°)	115 VAC input	16 A typ.
	Inrush current * (for a cold start at 25°)	230 VAC input	32 A typ.
Output	Rated Output Current		60 A	29 A	14.6 A	9.7 A	7.32 A
	Voltage adjustment range *		-10% to 10% (with V. ADJ)
	Ripple & Noise voltage *	100 to 120 VAC/200 to 240 VAC input	110 mVp-p max.	130 mVp-p max.	120 mVp-p max.	180 mVp-p max.	180 mVp-p max.
	Input variation influence *		0.5% max.
	Load variation influence *		2.0% max.	1.0% max.
	Temperature variation influence	100 to 120 VAC/200 to 240 VAC input	0.03%/°C max.
	Startup time *	115 VAC input	610 ms typ.	620 ms typ.	580 ms typ.	610 ms typ.	610 ms typ.
	Startup time *	230 VAC input	570 ms typ.	590 ms typ.	560 ms typ.	590 ms typ.	590 ms typ.
	Hold time *	115 VAC input	25 ms typ.	18 ms typ.	17 ms typ.	19 ms typ.	19 ms typ.
	Hold time *	230 VAC input	31 ms typ.	25 ms typ.	23 ms typ.	25 ms typ.	24 ms typ.
Addi- tional func- tions	Overload protection		Yes, automatic reset
	Overvoltage protection *		Yes, 115% or higher of rated output voltage, power shut off (shut off the input voltage and turn on the input again)
	Overheat protection		Yes, power shut off (shut off the input voltage and turn on the input again) (Overheat protection when the cooling fan is in an abnormal condition)
	Series operation		Yes (For up to 2 Power Supplies, external diodes are required.)
	Parallel operation		No (However, backup operation is possible, external diodes are required.)
	Remote sensing		No
	Remote control		No
	Output indicator		Yes (LED: Green)
Insula- tion	Withstand voltage		3 kVAC for 1 min. (between all input terminals and output terminals) current cutoff 20 mA
			2 kVAC for 1 min. (between all input terminals and PE terminals) current cutoff 20 mA
			1 kVAC for 1 min. (between all output terminals and PE terminals) current cutoff 20 mA
	Insulation resistance		100 MΩ min. (between all output terminals and all input terminals/PE terminals) at 500 VDC
Envi- ron- ment	Ambient operating temperature		-20 to 60°C (Derating is required according to the temperature. Refer to Derating Curves on Data Sheet.) (with no condensation or icing)
	Storage temperature		-40 to 85°C (with no condensation or icing)
	Ambient operating humidity		20% to 90% (Storage humidity: 10% to 95%)
	Vibration resistance		10 to 55 Hz, 0.375-mm half amplitude for 2 h each in X, Y, and Z directions 10 to 500 Hz, 0.26-mm half amplitude for 1 h each in X, Y, and Z directions
	Shock resistance		150 m/s², 3 times each in ±X, ±Y, ±Z directions
Relia- bility	MTBF		135,000 hrs min.
Relia- bility	Life expectancy *		10 years min.
Con- struc- tion	Dimensions (W × H × D)		Refer to Dimensions.
	Weight		800 g max.
	Cooling fan		Yes (ON/OFF control according to internal temperature)
	Degree of protection		--
Stan- dards	Harmonic current emissions		--
	EMI	Conducted Emissions	Conforms to EN 61204-3 Class A, EN 55011 Class A
	EMI	Radiated Emissions	Conforms to EN 61204-3 Class A, EN 55011 Class A
	EMS		Conforms to EN 61204-3 high severity levels
	Safety Standards		Approved Standards UL: cURus UL 60950-1 (Recognition) OVC II Pol2 CSA: cURus C22.2 No60950-1 Conformed Standards EN: EN 60950-1 OVC II Pol2
	Marine Standards		No
	SEMI		No

* Refer to Conditions of below.

Conditions

	Frequency
Efficiency		The value is given for the rated output voltage and rated output current.
Input	Voltage range	Although some inverters give 50/60 Hz as the output frequency, do not use an inverter output as the power source for the Power Supply. Doing so may result in smoking or burning due to internal temperature increases in the Power Supply. If you connect a UPS to the input, do not connect one with a square wave output.
	Current	The value is given for the rated output voltage and rated output current.
	Inrush current (for a cold start at 25°C)	The value is given for a cold start at 25°C. Refer to following for details.
Output	Voltage adjustment range	If the output voltage adjuster (V. ADJ) is turned, the voltage will increase by 10% or more over the voltage adjustment range. When adjusting the output voltage, confirm the actual output voltage from the Power Supply and be sure that load is not damaged.
	Ripple & Noise voltage	The value is given for the rated output voltage and rated output current. The value is for an ambient operating temperature of 25°C.
	Input variation influence	This is the maximum variation in the output voltage when the input voltage is gradually changed within the allowable input voltage range at the rated output voltage and rated output current.
	Load variation influence	This is the value when the output current is changed from 0 A to the rated output current while the input voltage is within the allowable input voltage.
	Startup time	The value is given for the rated output voltage and rated output current. The value is given for a cold start at 25°C. Refer to following for details.
	Hold time	The value is given for the rated output voltage and rated output current. Refer to following for details.
Additional functions	Overvoltage protection	Refer to Overvoltage Protection on Data Sheet for information on resetting the input power.
Reliability	Life expectancy	Refer to Recommended Replacement Periods and Periodic Replacement for Preventive Maintenance on Data Sheet for details.

Inrush Current, Startup Time, and Output Hold Time

Note: Twice the normal input current will flow for a redundant system.
Sufficiently check the fusing characteristics of fuses and the operating characteristics of breakers and select fuses
and breakers so that external fuses will not burn out or breakers will not operate due to inrush current.

Ripple Noise Voltage

The specified standard for the ripple voltage noise was measured with the following measurement circuit.

Power Supplies

Models with Terminal Block Facing Upward

S8FS-C025[][] (25 W)

S8FS-C035[][] (35 W)

S8FS-C050[][] (50 W)

S8FS-C075[][] (75 W)
S8FS-C100[][] (100 W)

Note: The figure shows a 100-W Power Supply.
A 75-W Power Supply has 5 terminals.

S8FS-C150[][] (150 W)

S8FS-C200[][] (200 W)

S8FS-C350[][] (350 W)

Models with Terminal Block Facing Forward

S8FS-C015[][]J (15 W)

S8FS-C025[][]J (25 W)

S8FS-C035[][]J (35 W)

Models with DIN rail

S8FS-C015[][]D (15 W)

S8FS-C025[][]D (25 W)

S8FS-C035[][]D (35 W)

S8FS-C050[][]D (50 W)

S8FS-C075[][]D (75 W)
S8FS-C100[][]D (100 W)

S8FS-C150[][]D (150 W)

S8FS-C200[][]D (200 W)

S8FS-C350[][]D (350 W)

Mounting Brackets

S82Y-FSC015DIN

S82Y-FSC025DIN

S82Y-FSC050DIN

S82Y-FSC150DIN

S82Y-FSC350DIN

S82Y-FSC015DIN-S

S82Y-FSC025DIN-S

S82Y-FSC035DIN-S

S82Y-FSC050DIN-S

S82Y-FSC100DIN-S

S82Y-FSC150DIN-S

S82Y-FSC350B (Four Brackets)

For Users of S8JC DIN Rail-mounting Power Supplies

If you are using a DIN Rail-mounting S8JC-series Power Supply, you can use a DIN Rail-mounting S8FS-C-series Power Supply or replace it with an S8FS-C-series Power Supply with a Forward-facing Terminal Block and a DIN Rail Mounting Bracket.

Table of Corresponding S8JC Power Supplies and S8FS-C[]J Power Supplies with DIN Rail Mounting Brackets

Please click image to enlarge (open in a new window).

DIN Rail

Mounting Rail (Material: Aluminum)

PFP-100N
PFP-50N

PFP-100N2

End Plate

PFP-M

TITLE	DOCUMENT TYPE	SIZE
S8FS-C	Catalog	9676 KB
S8FS-C	Catalog	1711 KB

To Improve Reliability of Euipment, Start with Power Supply Selection

How does a Power Supply contribute to stable equipment operation?

Designed to Withstand Abnormal Input Voltages Up to 300 VAC*1

Improved Resistance to Noise of Several Tens of kHz from Inverters

Lightening Surge Resistance of 1.5 Times*1 the Standard Value

Design with details in mind provides stable quality and reliability.

Automatic lines are used in the manufacturing processes to ensure stable Power Supply quality.

OMRON boasts a 38-year track record in Power Supplies.

Ratings, Characteristics, and Functions

Conditions

Inrush Current, Startup Time, and Output Hold Time

Ripple Noise Voltage

Power Supplies

Models with Terminal Block Facing Upward

S8FS-C025[][] (25 W)

S8FS-C035[][] (35 W)

S8FS-C050[][] (50 W)

S8FS-C075[][] (75 W) S8FS-C100[][] (100 W)

S8FS-C150[][] (150 W)

S8FS-C200[][] (200 W)

S8FS-C350[][] (350 W)

Models with Terminal Block Facing Forward

S8FS-C015[][]J (15 W)

S8FS-C025[][]J (25 W)

S8FS-C035[][]J (35 W)

S8FS-C050[][]J (50 W)

S8FS-C075[][]J (75 W) S8FS-C100[][]J (100 W)

S8FS-C150[][]J (150 W)

S8FS-C200[][]J (200 W)

S8FS-C350[][]J (350 W)

Models with DIN rail

S8FS-C015[][]D (15 W)

S8FS-C025[][]D (25 W)

S8FS-C035[][]D (35 W)

S8FS-C050[][]D (50 W)

S8FS-C150[][]D (150 W)

S8FS-C200[][]D (200 W)

S8FS-C350[][]D (350 W)

Mounting Brackets

S82Y-FSC015DIN

S82Y-FSC025DIN

S82Y-FSC050DIN

S82Y-FSC150DIN

S82Y-FSC350DIN

S82Y-FSC015DIN-S

S82Y-FSC025DIN-S

S82Y-FSC035DIN-S

S82Y-FSC050DIN-S

S82Y-FSC100DIN-S

S82Y-FSC150DIN-S

S82Y-FSC350B (Four Brackets)

For Users of S8JC DIN Rail-mounting Power Supplies

Table of Corresponding S8JC Power Supplies and S8FS-C[]J Power Supplies with DIN Rail Mounting Brackets

DIN Rail

Mounting Rail (Material: Aluminum)

PFP-100N PFP-50N

PFP-100N2

End Plate

PFP-M

S8FS-C075[][] (75 W)
S8FS-C100[][] (100 W)

S8FS-C075[][]J (75 W)
S8FS-C100[][]J (100 W)

PFP-100N
PFP-50N