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4.8 Residual current devices
Possible procedure for setting the response current and the delay time
1. Switch off the molded case circuit breaker.
2. Open the transparent protective cover over the setting buttons.
3. Adjust the setting values for response current and delay time on the residual current
device to the maximum value in each case.
4. Switch on the molded case circuit breaker.
The LED labeled "ACT" now lights up (RCD mode) on the residual current device or the
"ACT" LED flashes and the "MONITORING" LED lights up (monitoring mode); the
residual current device is ready.
5. Reduce the setting for the response current until the LED labeled "AL" lights up.
The residual current is now 30% higher than the response current setting.
6. By turning the setting button clockwise, set the next higher response current.
The LED "AL" goes out, the correct response current is now set.
7. Set the required delay time.
8. Close the transparent protective cover over the setting buttons.
The device is now fully parameterized.
436
3VA molded case circuit breakers with IEC certificate
Manual, 03/2019, A5E03603177010-03
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