With the stepping relay, a load can be switched with a button. If a positive / negative pulse is applied to terminal 15, the relay switches and stops itself. With another pulse, it is switched again. The stepping relays are available in electronic and mechanical versions, two operating voltages and two different sizes.
Mechanical toggle relay with 12 V and limit continuous currents of 10 A (NC) and 20 A (close)
The Toggle Relay with 12 V and a compact 30 x 30 x 30 mm housing
The time limited toggle Relay 12 V with M3 housing and individual impulse time