By energizing a coil of the relay, called the latch coil, the latching relay operates. A second coil on the relay, the unlatch coil, must be energized to return the contacts to their unoperated condition. This arrangement is often referred to as a ____.
A) mechanical latching attachment
B) memory relay
C) locking relay
D) solid-state timing relay

Question

Quizplus · Accepted Answer

Latching relays are often referred to as memory relays because they retain their contact position (set or reset) even when the power is removed, mimicking the way memory retains information without continuous power.

By Energizing a Coil of the Relay, Called the Latch