Further information for Schneider Electric RZM031BN wiring module for relay socket
Harmony Relay. Protection module for mounting in the relay base. The module is connected to the coil control circuit and protects the output circuit of the control. Protection is ensured by a diode in DC circuits 24-60 VDC. In addition, a green LED shows the control status. Primarily used with the RSB and RXG relay series.