Castell Safety - - a Halma Company

- Model TDI - Electronic Timer with Power Isolation


The TDI-20 is a heavy-duty, trapped key interlock switch controlled by a fail-safe timer and solenoid. The unit is designed to control access to hazardous machines with rundown times and can be used in high-risk, category 4 applications. The unit incorporates a dual channel fail-safe timer; heavy-duty, continuously rated solenoid; solenoid position monitoring; 20A isolation switch; front panel lamp indication of solenoid position and timer failure; up to three lock centres for multiple-access applications and an isolation switch lock-out feature.

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