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K - Bolt Interlock
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•   Key operated mechanical bolt interlock
•   Designed for the control of electrical switchgear
•   Comes with a 15.88 mm diameter bolt available in various lengths
•   vailable with FS or Q type lock portions
•   Manufactured in either brass or stainless steel
•   Ideal for use in standard or harsh, corrosive environments
The K bolt interlocks are used as a part of a safety system to allow safe control of valves or disconnect switches.

While power supply to the system is switched on, the access doors to the hazardous area are locked closed. Key A is trapped in the disconnector K bolt interlock (1) while the process is on. To enter the hazardous area, the disconnector is turned to the OFF position and key A is released, locking the disconnector in the disengaged position. Key A is then taken to the grounding switch. Key A enters the second K lock (2) which retracts the bolt enabling the cammed switch lever to be rotated to engage the ground. Once rotated, the recess in the cam aligns with the next K lock (3) with key B trapped in its lock. Key B can now be removed from K lock (3), which now locks the lever in place ensuring that the ground connection cannot be broken.

The system is now disconnected and grounded, key B can be taken to operate the access interlock on the door of the hazardous area to gain access into it.
  Type   1 2   3   4   5            
Part Number K -     -       -              
                                 
Example K - FS B - 6,4   4 - TBA            


1 Lock portion type FS / Q
2 Material B = Brass / S = Stainless steel
3 L Dimension (bolt length when retracted) in mm 0 / 6,4 / 12,7 / 19,1 / 25,4
4 Form 1 / 2 / 3 / 4
5 Lock portion symbol FS up to 3 characters / Q up to 6 characters
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