Omron, G9B Series

• Built-in relays switch 2 A at 250 VAC or 30 VDC.

• Initialization of stepping with reset input.

• Uses memory that stores setting status for 10 days without power. All internal contacts are released when no power is supplied.

• Detects an internal element malfunction caused by external noise, indicates the malfunction with an alarm indicator, and turns the relay alarm output ON. (An internal relay malfunction or internal relay contact weld cannot be detected.)

• With safety-design terminals which prevent electric shock accidents.

• With easy-to-see indicators which display the stepping status.

Contact Ratings

Load	Resistive load (cosΦ = 1)
Rated load	2 A at 250 VAC/30 VDC
Rated carry current	2 A
Max. switching voltage	250 VAC, 30 VDC
Max. switching current	2 A

Characteristics

Operating voltage range	85% to 110% of rated voltage
Power consumption	24 VDC: 90 mA max. 100 or 200 VAC: 120 mA max.
Contact resistance (See note 2.)	100 mΩ max.
Operate time (See note 3.)	50 ms max.
Release time (See note 3.)	50 ms max.
Min. pulse time (See note 4.)	100 ms max.
Error detecting time	100 ms max.
Insulation resistance (at 500 VDC)	100 MΩ min. between the power supply, control, output, and R terminals 100 MΩ min. between the terminals, except the alarm output terminals and power output terminals
Dielectric strength	1,500 V, 50/60 Hz for 1 min between the power supply, control, output, and R and other terminals 1,500 V, 50/60 Hz for 1 min between the terminals, except the alarm output terminals and power output terminals
Noise immunity	Noise level: 1.5 kV, pulse width: 50 ns/1 μs (600 V for 24-VDC model)
Vibration resistance	Destruction: 10 to 55 to 10 Hz, 0.75-mm single amplitude (1.5 mm double amplitude) Malfunction: 10 to 55 to 10 Hz, 0.75-mm single amplitude (1.5 mm double amplitude)
Shock resistance	Destruction: 500 m/s² Malfunction: 200 m/s²
Endurance	Mechanical: 10,000,000 steps min. Electrical: 300,000 steps min. (See note 5.)
Error rate (See note 6.)	10 mA at 5 VDC
Ambient temperature	Operating: -25°C to 55°C (with no icing or condensation)
Ambient humidity	Operating: 5% to 85%
Terminal strength	Tightening torque: 0.98 Nm Tensile strength: 49 N
Weight	Twelve-step model: approx. 450 g; Six-step model: approx. 400 g

Note: 1. The data shown above are initial values.
2. The contact resistance was measured with 0.1 A at 5 VDC using the fall-of-potential method.
3. The operate time and release time was measured with the rated voltage imposed with any contact bounce ignored at an ambient temperature of 23°C.
4. For the step signal, set a minimum pulse time of 100 ms for both the ON time and OFF time.
5. The electrical endurance was measured at an ambient temperature of 23°C.
6. This value was measured at a switching frequency of 120 operations per minute.

G9B-06

G9B-12

TITLE	DOCUMENT TYPE	SIZE
G9B	Catalog	1434 KB

Contact Ratings

Characteristics

G9B-06

G9B-12

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