Special Performance Contacts

Double Strength Door Contacts

The SP line is built for the failure that ends most contacts: the joint where the lead meets the switch. Each switch is welded with a solid brass splice to provide the strongest connection possible, which is what the Double Strength name refers to.

Concealed contacts are listed at 3/4 inch for steel doors with a closed circuit switch, with open circuit and SPDT versions and a 24 inch 22awg wire lead. Wide gap versions hold at a 1.0 inch gap, which covers a door that has dropped or a frame that has moved.

Surface contacts are listed with covers and spacers in a choice of colour, for openings where the door and frame cannot be drilled.

See budget contacts and Twist Loc contacts, or browse the full United Security catalog. Contact our team with your door material and gap and we can help you choose.

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