Designed specifically for service in severe environments, the Model 1337 Latching Power Relay employs a unique "balanced-mass" principle to provide positive latching under extreme vibration and shock conditions.

In addition to the balanced mass, the exclusive Teledyne Interconnect Devices pin-and-socket design eliminates chatter to assure circuit path integrity and positive power transfer. Tungsten facing on the gold-plated beryllium copper power contacts prevents arc erosion and eliminates contact welding under conditions of high inrush current. Design of the cast aluminum case allows units to be ganged with a common shaft for positive simultaneous switching of multiple circuits. Also, provision for manual operation during testing and checking can be supplied.

In the Model 1337 Latching Power Relay, electromagnets are used for transfer, while a permanent magnet accomplishes the latching function. The masses of the two socket assemblies are equal, thus preventing contact movement in shock and vibration environments. The fixed pins are integral with the header. The split sockets mate with the pins upon actuation.