A connector receptacle is typically attached to the equipment, bulkhead or box. FSC 5935 also includes backshells, strain reliefs, brackets, and adapters. Relays, Solenoids Relays are protective, or control, devices, which complete or break an electrical circuit in response to electrical changes in an external circuit. The contacts and actuating element are not in series. It is not designed to permit manual opening of the protected or controlled circuit but may have facilities for manual closing or reset upon automatic opening of the circuit.
Solenoids consist of one or more coils surrounding an iron core.
The axial or rotary movement is a result of the magnetic flux of the coil. It is designed to convert electrical energy into mechanical energy.