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Annunciators & Magnetic Switches

Murphy Magnetic Switches are the nerve centers that translate Swichgage® contact operations into decisions that operate an alarm or engine shutdown device. They are the electrical load carrying devices for the alarm or shutdown device.

Magnetic Switch Tattletale® devices have an additional feature that indicates which monitored function failed, leading to the alarm or shutdown.

Our ST series alarm/annunciator modules may be used with magnetic switches or engine controls, providing additional fault input or indication capability.

Standard model Tattletales
Tattletale annunciators and magnetic switches.

ST Series annunciators
LED fault indication and alarm modules.

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Annunciators & Magnetic Switches