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Catalog - Time Delay and Motion Sensing Units - TDI [Electronic Timer with Power Isolation]
TDI 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.

Depending on the number of access points requiring control, this box would work in conjunction with Access interlocks.
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