Is there such a thing as a momentary relay?

[Atariman]

I want to trigger a solenoid to latch open when 240v is applied to a motor. The solenoid is 24v and has a latching mechanism, so I only need to send it 24v for less than a second, I don't want it powered the whole time.

Is there such a thing as a momentary relay?

 

[ZekeR]

Most relays are indeed momentary—the connection is made as long as the solenoid is powered, and once power is disconnected the connection becomes broken.

 

[Atariman]

Most relays are indeed momentary—the connection is made as long as the solenoid is powered, and once power is disconnected the connection becomes broken.

Sorry, what I meant was one that is momentary even though the power is still connected.

E.g. I turn on the switch, and the switch stays on, but the relay only closes for a second (momentarily) solenoid only gets a 'pulse' of power once, even though power is still running through the switch.