Mechanical Bolt Interlocks Bolt Interlocks are widely used for the interlocking of switchgear. The bolt is often used for the physical blocking of levers or rotary switches via a cam mechanism.
Time Delay And Motion Sensing Units Motor driven machinery and other systems with run down times do not provide a safe area at the instant of power isolation.
Key Exchange Units Key Exchange Units provide additional keys for when there are a greater number of access locks than number of keys from power isolation.