AR switch

AR Switches are unitized, preassembled switches available with such basic design options as:

- Polymer or porcelain insulators.
- Steel or foam-filled fiberglass 4" x 4" crossarm and interphase shaft, each providing 8,000-lb. working (equal loading) dead-ending capability.
- Steel control sections, one fiberglass control section (four 7-ft. steel sections, or one 7-ft. fiberglass and three 7-ft. steel sections provided) or Hook Stick Control.

Ease of operation and effortless movement of the rotating insulators is ensured with the factory preset Four-Link Overtoggle Mechanism and Delrin ®* bushings coupled with a cast aluminum rotating shaft that never needs lubrication during the life of the switch. Under extensive testing, the AR switch withstood forces and numbers of operations far greater than would be expected in service, with no significant increase in required operating force.

*Delrin ¨ is a registered trademark of The Du Pont Company.

Interrupter

The AR Switch interrupter provides circuit interruption without external arc or flame. It is designed with a unique trailer, liner and muffler, to create the necessary de-ionizing gases for efficient circuit interruption.

AR Switch interrupter housings are manufactured from a high strength polyurethane material for strength, weatherability and resistance to ultraviolet radiation. The housing is a two part housing which is fully gasketed to prevent water entry. The interrupter incorporates a self resetting mechanism, to ensure that the interrupter is in the circuit and ready to operate for each switch opening.

Extensive testing has been conducted to ensure proper operation under a variety of switching applications (magnitude and varying duties), as well as varying environmental conditions.