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Kirk Key Interlock Company is committed to providing engineers with useful information to help them specify key interlocks on projects. Here we feature recommendations and white papers on relevant topics to help you analyze key interlocks and how they might apply to your specific project.

TECH PAPERS AVAILABLE:

Paper 101 -
Key Interlock Applications for Switchgear Industry
Recommended Switchgear Safety Applications

Paper 102 -
Selection and Application of Key Interlock Systems
Types of Interlocks
Components of a Key Interlock
Interlock System Coordination

Paper 103 -
Examples of Key Interlock Systems
Comparison of Key Interlocks vs. Lockout Tagout
Various Examples of Key Interlock Systems

Paper 104 -
How an Individual Key Interlock Operates
Explanation of "Lock Open" (L-O) and "Lock Closed" (L-C)
Key Removable Positions
Lock Bolt Travel and Projection
Key Interchanges and Lock Numbering
Multiple Cylinder Interlocks
Transfer Blocks
Door Interlocks and Key Retaining Feature
Key Control

Paper 105 -
The Application of Auxiliary Switches with Key Interlocks
"S" Switches and "K" Switches
Various Functions of Auxiliary Switches

Paper 106 -
The Application of Solenoid Key Release Units and
Time Delay Key Release Units In Key Interlock Systems
Solenoid Key Release Units (SKRU)
Time Delay Key Release Units (TDKRU)

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Other Application Links AVAILABLE:

Overview
An overview of the importance of key interlock systems in your sequential operations.

Standards & Regulations Supporting Utilization of Interlocks
The utilization of key interlocks is supported by many standards and regulations.

Links to Standards and Safety Organizations
Kirk Key Interlock Company is continually working with safety and standards organizations to recognize that key interlocks are appropriate in many more circumstances than manufacturers and installation contractors are currently utilizing them.

Actual Cases of Electrical Equipment Accidents
A compilation of brief case histories involving electrical accidents that led to severe injuries, loss of life, and large financial settlements.