Ratings / Characteristics

Item G9KA-1A
Contact resistance*1 0.2 mΩ max.
Operate time*2 30 ms max.
Release time*2 10 ms max.
Insulation resistance *3 1,000 MΩ min.
Dielectric strength Between coil and contacts 5,000 VAC, 50/60 Hz for 1 min
Between contacts of the same polarity 2,000 VAC, 50/60 Hz for 1 min
Impulse withstand voltage Between coil and contacts 10 kV (1.2 × 50 μs)
Vibration resistance Destruction 10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Malfunction Excitation: 10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Shock resistance Destruction 1,000 m/s2
Malfunction Excitation: 100 m/s2
Durability Mechanical 100,000 operations min. (at 18,000 operations/h)
Electrical (Resistive)*4 800 VAC 50 A switch on, 200 A carry current, 50 A switch off; 30,000 operations min.
800 VAC 150 A switch on, 200 A carry current, 200 A switch off; 10 operations min.
(Switching frequency: 1 second ON - 9 seconds OFF at 85°C)
Failure rate (M level) (Reference value) *5 1 A at 5 VDC
Use conditions Coil holding voltage∗6 45% to 60% of rated coil voltage
Ambient operating temperature -40°C to +85°C (with no icing or condensation)
Ambient operating humidity 5% to 85%
Weight Approx. 220 g

Note. The values given above are initial values at 23°C. (Except Electrical Durability)
1. Measurement conditions: 200 A at 6 VDC (after 30 minutes) voltage drop method.
2. Measurement conditions: Applied rated coil voltage, no contact bouncing.
3. Measurement conditions: Measured with a 1,000 VDC megohmmeter at the same point as the dielectric strength was measured.
4. This specification is when diode and zener diode are used. For relay coil, please connect diode and zener diode. For more detail, please refer to ● Diode Connection for Operating Coil on page 4.
5. The value was measured at a switching frequency of 180 operations/ minute.
6. For the detail regarding holding voltage usage, please refer to ● Coil Voltage Reduction (holding voltage) after Relay Operation on page 4.

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G9KA Series Datasheet PDF 1.3 MB