The M-TS-SR is a die cast trapped key operated tongue interlock switch designed to hold closed machine guards.
When the actuator tongue is inserted into the switch (guard closed) the key can be rotated and trapped and the main safety contacts are closed (machine able to run).
The actuator tongue can only be released when the internal solenoid in the M-TS-SR is energised.
This then enables the key to be turned and released, the safety contacts opened and the actuator tongue removed.
The key can then be used to release other devices in a trapped key system.
It can be used in conjunction with safety delay timers to allow a delay time before the solenoid is energised therefore allowing for machine run down time prior to releasing of the key and actuator tongue.
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