This diagram shows the connection of the AMETEK Latching Relay with BMS123.
The relay is controlled by the BMS123 Load Relay NC contact. The auxiliary relay is powered by the DC main voltage and it will create the impulse signal for the latching relay to disconnect.
Since the main coil of the AMETEK Latching Relay is powered by 12V, the 12V voltage is taken from the 4th cell (12V DC) and must be separately protected by a DC breaker.
After the disconnection it is necessary to press the START button to resume the function. There is also the STOP button to make the manual disconnect.
Please note the fusing in this circuit: two main fuses on the DC power line, one circuit breaker on the DC main for the auxiliary relay and the second circuit breaker on the 12V line for the latching relay.
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