GV2ME, GV2P, GV2L, GV2LE, GV3P and GV3L motor protection circuit breakers (MPCB) can be fitted with the following fault indicating contact blocks:
GVAD0110
GVAD0101
GVAD1010
GVAD1001
These blocks comprise of fault signalling contacts and instantaneous auxiliary contacts.
GVAD0110
A N/C fault signalling contact (terminals 95-96), closed if there is no fault, open when a fault (magnetic or thermal) occurs.
A N/O instantaneous auxiliary contact (terminals 53-54), closed when the device is energised and open when the device is de-energised.
GVAD0101
A N/C fault signalling contact (terminals 95-96), closed if there is no fault, open when a fault (magnetic or thermal) occurs.
A N/C instantaneous auxiliary contact (terminals 51-52), closed when the device is de-energised and open when the device is energised.
GVAD1010
A N/O fault signalling contact (terminals 97-98), open if there is no fault, closed when a fault (magnetic or thermal) occurs.
A N/O instantaneous auxiliary contact (terminals 53-54), closed when the device is energised and open when the device is de-energised.
GVAD1001
A N/O fault signalling contact (terminals 97-98), open if there is no fault, closed when a fault (magnetic or thermal) occurs.
A N/C instantaneous auxiliary contact (terminals 51-52), closed when the device is de-energised and open when the device is energised.
The instantaneous auxiliary contact test is performed by creating a state of transition of the handle actuator between the de-energised position and the energised position.
The fault contact test is performed by pressing the test button when the handle actuator is in the closed position.
