FAQ No. FAQ02822
Question
What is a latching relay?
Answer
It is a relay that is set (ON) or reset (OFF) by the input of a pulse
voltage. Even after the input voltage is interrupted, this relay maintains
its set or reset condition until it receives the next inverting input. It
is also called a keep relay.
There are two types of mechanisms for maintaining the set and reset
conditions: a magnetic holding type and a mechanical holding type.
There are also two types of coils for applying the set and reset pulse
voltages: a single-winding type and a double-winding type.
Basic Operation:
Outline
In these Relays, the input pulse of the set coil causes the operating
condition to be maintained magnetically or mechanically, whereas the input
pulse to the reset coil side puts the Relay into the reset condition.
Outline
In these Relays, the set input pulse causes the operating condition to be
maintained magnetically, whereas the reset input pulse (input with inverse
polarity of set input) puts the Relay into the reset condition.
Applicable Models:
MMK,
MYK,
G2AK
Other General-purpose Relay
FAQs
 What is the number of contact poles?
The Relay does not operate even when voltage is applied. Why is this?
The Relays operates but there is no contact continuity. Why is this?
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