Omron, A165E Series

Direct opening mechanism to open contacts in emergencies, such as when they are welded.
Conforms to EN 60947-5-5.
Includes a safety lock to prevent misuse.
Features separate construction that allows the Switch to be separated for easier wiring and one-piece construction that allows easier handling.
Models available with 3 contacts built into a single block (A165E-U).

last update: November 1, 2017

Certified Standard Ratings

UL508, CSA C22.2 No.14, CCC(GB14048.5)

Models with Separate Construction

Rated voltage	Resistive load
125 VAC 250 VAC 30 VDC	5 A 3 A 3 A

Models with One-piece Construction

Rated voltage	Resistive load
125 VAC 250 VAC 30 VDC	1 A 0.5 A 1 A

TÜV (EN60947-5-1)

Models with Separate Construction

Rated voltage	Resistive load
250 VAC 30 VDC	3 A 3 A

Models with One-piece Construction

Rated voltage	Resistive load
250 VAC 30 VDC	0.5 A 1 A

Certified Standards

Certification body	Standards	File No.
UL *	UL508, CSA C22.2 No.14	E76675
TÜV SÜD	EN60947-5-1 (certified direct opening), EN60947-5-5	Consult your OMRON representative for details.
CQC (CCC)	GB14048.5	2003010303070678

* Certification for CSA C22.2 No. 14 has been obtained. Separate construction models have been certified for the Switch Unit.

Switch Ratings

Models with Separate Construction

Rated voltage	Resistive load
125 VAC 250 VAC 30 VDC	5 A 3 A 3 A

Note: Minimum applicable load: 5 VDC, 150 mA

Models with One-piece Construction

Rated voltage	Resistive load
125 VAC 250 VAC 30 VDC	1 A 0.5 A 1 A

Note: Minimum applicable load: 5 VDC, 1 mA

LED Ratings (Only for Models with LEDs)

Rated voltage	Rated current	Operation voltage
24 VAC/VDC	8 mA	24 VAC/VDC±5%

Characteristics

Type		Emergency Stop Switch
Type		Non-lighted A165E-S/A165E-M	Lighted A165E-LS/A165-LM	Non-lighted, One-piece construction A165E-U
Allowable operating frequency	Mechanical	20 operations/minute max.
Allowable operating frequency	Electrical	10 operations/minute max.
Insulation resistance		100 MΩ min. (at 500 VDC)
Dielectric strength	Between terminals of same polarity	1,000 VAC, 50/60 Hz for 1 min
	Between terminals of different polarity	2,000 VAC 50/60 Hz for 1 min
	Between each terminal and ground	2,000 VAC 50/60 Hz for 1 min
	Between lamp terminals	1,000 VAC, 50/60 Hz for 1 min *1		---
Vibration resistance	Malfunction	10 to 55 Hz, 1.5-mm double amplitude (malfunction within 1 ms)
Shock resistance	Destruction	500 m/s²
Shock resistance	Malfunction	300 m/s² max. (malfunction within 1 ms)		150 m/s² max. (malfunction within 1 ms)
Durability	Mechanical	100,000 operations min.
Durability	Electrical	100,000 operations min.
Degree of protection		IP65 Oil-resistant *2	IP65 *2	IP65 Oil-resistant *2
Electric shock protection class		Class II
PTI (tracking characteristic)		175
Degree of contamination		3 (EN60947-5-1)
Weight		Approx. 16 g (in case of 2NC(2) Switches)
Ambient operating temperature		-10 to 55°C (with no icing or condensation)
Ambient operating humidity		35% to 85%
Ambient storage temperature		-25 to 65°C (with no icing or condensation)

*1. LED not mounted. (Test them with the LED removed.)
*2. Degree of protection from the front of the panel.

Operating Characteristics

Type	Characteristics of models with separate construction	Characteristics of models with one-piece construction
Operating force OF max.	14.7 N	14.7 N
Releasing torque RF max.	0.1 Nm	0.1 Nm
Pretravel PT	3.5±0.5 mm	3±0.5 mm

last update: November 1, 2017

TITLE	DOCUMENT TYPE	SIZE
A165E	Catalogue	2965 KB

Certified Standard Ratings

UL508, CSA C22.2 No.14, CCC(GB14048.5)

Models with Separate Construction

Models with One-piece Construction

TÜV (EN60947-5-1)

Models with Separate Construction

Models with One-piece Construction

Certified Standards

Switch Ratings

Models with Separate Construction

Models with One-piece Construction

LED Ratings (Only for Models with LEDs)

Characteristics

Operating Characteristics

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