SPI Systems WR 61-61 Relay
The WR-6161 is a magnetic latching relay. When it receives a momentary polarized pulse from a two-wire relay control system, it provides a permanent On/Off control of lighting and other electrical loads. Its state remains until the coil is re-magnetized.
WR-6161 is a Single pole 20 Amp High-In-Rush-Duty Relay
WR-6166 is a Double pole 20 Amp High-In-Rush-Duty Relay
For full detials: