PPRuNe Forums - View Single Post - 777 Run/Cutoff Relay Operation Query

1st August 2025 | 12:43

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Someone Somewhere

Joined: Jan 2025

: Non-Aircrew

Posts: 640

Likes: 782

From: New Zealand

Probably so-called 'bistable' relays. I think they use springs and an over-centre mechanism to latch in position, similar to a toggle switch. Just the actuation is by two coils (or one coil operated in two polarities), rather than by fingers.

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