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Safety Relay Unit (Sensor Connector Type)


Less Wiring Required with Safety Light Curtain


Power Input

Model G9SA-300-SC
Power supply voltage 24 VDC
Operating voltage range 85% to 110% of rated power supply voltage
Power consumption 24 VDC: 0.7 W max.


Resistive load
Rated load 250 VAC, 5 A
30 VDC, 5 A
Rated carry current 5 A


Model G9SA-300-SC
Input current 40 mA max.


Model G9SA-300-SC
Contact resistance *1 100 mΩ
Operating time *2 300 ms max.
Response time *3 10 ms max.
Insulation resistance *4 100 MΩ min. (at 500 VDC)
Dielectric strength Between different
2,500 VAC, 50/60 Hz for 1 min
Between inputs
and outputs
Between power
inputs and outputs
Vibration resistance 10 to 55 to 10 Hz, 0.375-mm single amplitude
(0.75-mm double amplitude)
Shock resistance Destruction 300 m/s2
Malfunction 100 m/s2
Durability Mechanical 5,000,000 operations min. (at approx. 7,200 operations/h)
Electrical 100,000 operations min. (at approx. 1,800 operations/h, rated load)
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%
Terminal tightening torque 0.98 Nm
Weight Approx. 300 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 turn OFF after the input is turned OFF. Includes bounce
*4. The insulation resistance was measured with 500 VDC at the same places that the dielectric strength was checked.