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Type C900 Interlock

Isolation interlock

The Type C900-301 is a compact cylinder interlock that engages directly with the linkage of equipment. It is manufactured to rotate clockwise to trap the key, however can be manufactured to turn counterclockwise. The C900-301 is installed with provisions or bracketry supplied by the OEM. The interlock is designed to be ambiguous in its ability to attach to a range of cams or levers due to variations in breaker design options.

The Type C900-301 is available in SD series only.

For further technical information please refer to the datasheet.


  • Easily Integrated into equipment
  • Small footprint design
  • Available in SD (brass)

Typical application


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