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The COOPER WIRING DEVICES CS120B is a single-pole, commercial-grade toggle wall switch rated for 20 amps across a wide voltage range of 120 to 277 VAC. Built for fluorescent lighting loads, it handles single-phase circuits in demanding commercial environments. The toggle operation provides a straightforward on/off control mechanism familiar to any licensed electrician. At 0.7 pounds, it is compact enough for standard electrical boxes while meeting the structural and thermal requirements of commercial installations, with an operating temperature range of -4 to 140 degrees F. Electricians and electrical contractors are the primary trade installing this switch in commercial and light-industrial settings.
The CS120B is suited for commercial office buildings, retail spaces, schools, and similar facilities where fluorescent lighting circuits require reliable switching. Its 120 to 277 VAC rating makes it compatible with both standard 120-volt branch circuits and higher-voltage 277-volt fluorescent lighting systems commonly found in commercial electrical distribution. The brown finish suits installations where color coordination with standard commercial wall plates is required.
Designed as an OEM-style replacement or direct-install commercial-grade toggle switch for single-pole, 20-amp fluorescent lighting circuits operating on 120 to 277 VAC single-phase systems.
Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the circuit at the breaker panel and verify absence of voltage with a calibrated meter before beginning any wiring work. The switch must be installed in a listed electrical box appropriate for the wire gauge and circuit load. Do not use this switch on multi-phase or dimming circuits; it is rated for single-phase, non-dimming applications only.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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