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Safety Relay Unit


Ultra Slim Safety Relay Unit


Power Input

Model G9SB-200[]-[] G9SB-3010 G9SB-301[]-[]
Power supply voltage 24 VAC/24 VDC 24 VDC 24 VAC/24 VDC
Operating voltage range 85% to 110% of rated power supply voltage
Power consumption 2.9 VA/1.4 W max. 1.7 W max. 3.6 VA/1.7 W max.


Model G9SB-200[]-[] G9SB-3010 G9SB-301[]-[]
Input current 25 mA max. 60 mA max. * 30 mA max.

* Indicates the current between terminals A1 and A2.


G9SB-200[]-[] G9SB-3010 G9SB-301[]-[]
Resistive load
Rated load 250 VAC, 5 A
30 VDC, 5 A
Rated carry current 5 A


Model G9SB-200[]-[] G9SB-3010 G9SB-301[]-[]
Contact resistance *1 100 mΩ
Operating time *2 30 ms max.
Response time *3 10 ms max.
Isolation voltage (Ui) 250 V/AC
Impulse withstand voltage (Uimp) 4 kV
resistance *4
Between inputs
and outputs
100 MΩ min. (at 500 VDC)
Between different
poles of output
Between inputs and
2,500 VAC 1 min.
Between different
poles of output
Vibration resistance 10 to 55 to 10 Hz, 0.375-mm single amplitude (0.75-mm double amplitude)
Destruction 300 m/s2
Malfunction 100 m/s2
Durability *5 Mechanical 5,000,000 operations min. (at approx. 7,200 operations/hr)
Electrical 100,000 operations min. (at approx. 1,800 operations/hr)
Failure rate (P level) (reference value) 5 VDC, 1 mA
Ambient operating temperature -25 to 55°C (with no icing or condensation)
Ambient operating humidity 35% to 85%
Pollution degree 2
Protection class IP20
Terminal tightening torque 0.5 N·m
Weight Approx. 115 g Approx. 135 g Approx. 120 g

*1. The contact resistance was measured with 1 A at 5 VDC using the voltage-drop method.
*2. Not including bounce time.
*3. The response time is the time it takes for the main contact to open after the input is turned OFF. Includes bounce time.
*4. The insulation resistance was measured with 500 VDC at the same places that the dielectric strength was checked.
*5. The durability is for an ambient temperature of 15 to 35°C and an ambient humidity of 25% to 75%.