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Type T Interlock

Transfer interlock

KIRK® Type T transfer interlock is an assembly of two or more lock cylinders in a single housing. The Type T transfer interlock is designed to retain one or more key(s), trapped key(s) or secondary key(s), while the remaining keys, initiating key(s) or primary key(s), are removed. This allows for the exchange of two or more interlocks within an interlock sequence.

The Type T transfer block is available in both SD and HD series.

For further technical information please refer to the datasheet.


  • Consolidated design for multiple keys
  • Secondary keys are held trapped until all primary keys are inserted
  • Easily integrated into a trapped key interlock scheme
  • Available in SD (brass) and HD (316 Stainless steel)

Typical application

Perimeter guarding

Electrostatic Precipitator


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