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C-1 Tamper Proof Kit

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This attachment is used with CJA freight door interlocks CV-1, CV-2, HG-1 and HG-2 to prevent intentional tampering. For example, when the elevator door is in the raised position it is possible to physically close the interlock cam and contacts allowing the elevator to run with the doors open.  The C-1 tamper proof attachment prevents intentional, physical closing of the interlock cam and contacts.

The C-1 tamper proof attachment consists of a cast iron “plug” which is affixed to the interlock, a rod with an offset, and rod guides for attaching the rod to the door.  The “plug” is attached on the interlock opposite and parallel to the interlock cam.  It rests on the straight section of the rod when the door is open holding the interlock cam and contacts in the open position.  When the door is actually closed the “plug” drops into the offset of the rod permitting the interlock cam to close making the contacts.

The tamper proof attachment may be ordered with the interlocks or as a field conversion kit for existing installations.
*When ordering please specify  door heights and door travel distances, if known.  If this information is not known we will furnish a standard 72” rod for field modifications.
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