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What is a latching relay?
Feb 09, 2018

The latching relay actually refers to the "self-locking", that is, after the relay power action, automatically lock its state, even if the current disconnect control will not change its state. In other words, when the power is absorbed, the disconnect control current continues to remain in the suction state, unless the unlock button is pressed, of course, there are some through the reverse current unlocked.

Ordinary relays, are "single stable type", and this relay belongs to the "bistable" type.