Cooper Wiring Devices CSB320V 20A 3-pole Toggle Three Way Switch

Product Description

The COOPER WIRING DEVICES CSB320V is a 3-pole, single-phase, commercial-grade toggle three-way switch rated for 20 amps and 120 to 277 VAC. Designed for fluorescent lighting circuits, it operates reliably across a wide temperature range of -4 to 140 degrees F. The ivory finish and toggle-style actuator are standard in commercial and light industrial panel and wall-box installations. Licensed electricians install this switch as part of compliant branch-circuit wiring in offices, warehouses, retail spaces, and similar commercial environments where durable, code-compliant switching is required.

This switch is suited for commercial fluorescent lighting control in single-phase systems. Its wide voltage compatibility — spanning 120 to 277 VAC — makes it appropriate for both standard 120-volt branch circuits and higher-voltage 277-volt fluorescent ballast circuits commonly found in commercial buildings. The three-way configuration allows control of a single load from two separate locations, a common requirement in corridors, stairwells, and large open-plan spaces.

Key Features

• 20-amp, 120 to 277 VAC rating supports both standard and high-voltage fluorescent circuits
• 3-pole, three-way toggle configuration enables two-location load control
• Commercial grade construction for higher durability and cycle life versus residential-grade devices
• Ivory color finish for standard commercial wall-plate compatibility
• Operating temperature range of -4 to 140 degrees F
• Meets UL 20 (File E18704), UL 94 V-0, UL Federal Specification W-C-896G, NOM 426, RoHS, and NAFTA compliance standards

Compatibility

Designed as an OEM-style commercial-grade replacement or new-installation toggle switch for fluorescent lighting branch circuits rated at 120 to 277 VAC in single-phase commercial applications.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always shut off and lock out the circuit breaker supplying the branch circuit before wiring or replacing the device. Confirm load voltage matches the switch rating before energizing. Standard electrician hand tools and a voltage tester are required for safe installation.