Legrand 670-WG Duplex Combination Switch 20A 120/277V

Product Description

The LEGRAND 670-WG is a duplex combination switch that houses two independent 1-pole toggle switches in a single device footprint. Each switch is rated at 20 amperes and 120/277 VAC, making this unit suitable for both standard residential branch circuits and higher-voltage commercial lighting circuits. The device features side wiring compatible with 12 and 14 AWG conductors and is finished in white. It carries UL listing and meets NEMA WD1/WD6 standards. Licensed electricians install this type of device where space efficiency at the outlet box is a priority or where two separately controlled circuits share a single gang location.

The 670-WG is designed for use in commercial, industrial, and residential electrical systems where two independently switched circuits must be controlled from one gang. Typical applications include dual-circuit lighting control in office spaces, corridors, stairwells, and utility rooms. The 120/277V dual-voltage rating makes it well-suited for commercial lighting loads on either standard 120V circuits or 277V fluorescent and LED lighting systems. The compact duplex form factor allows two devices to fit the space of one, reducing box fill and conduit requirements in tight installations.

Key Features

• Dual 1-pole toggle switches rated 20A at 120/277 VAC in a single gang form factor
• Side wiring accepts 12 and 14 AWG conductors for flexible installation
• Break-off feature allows separate or common feed configuration between the two switches
• Grounding device that meets NEC requirements for combination devices
• Tamper-resistant design incorporates a dual mechanical shutter system to help prevent insertion of foreign objects
• Meets NEMA WD1/WD6 standards with UL listing

Compatibility

Designed as an OEM-style replacement or new-installation duplex combination switch for single-gang electrical boxes on 120V or 277V branch circuits requiring two independently controlled 1-pole switch positions.

Installation Notes

Installation must be performed by a qualified 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 meter before wiring. Side wiring terminals accept 12 and 14 AWG conductors; follow torque requirements printed on the device or listed in the product documentation. Verify the break-off tab configuration matches the intended feed arrangement before securing the device in the box.

Technical Specifications

• Switch 1 Type: 1-Pole Toggle, 20A, 120/277 VAC
• Switch 2 Type: 1-Pole Toggle, 20A, 120/277 VAC
• Amperage: 20 amps
• Voltage: 120/277 VAC
• Configuration: Duplex (two switches, single gang)
• Wiring: Side wire, 12 and 14 AWG
• Grounding Type: Grounding
• Color: White
• Overall Dimensions: 1.32 inches W x 0.94 inches D x 3.28 inches H
• Package Dimensions: 2.187 inches L x 1.812 inches W x 4.312 inches H
• Package Weight: 0.210 pounds
• Applicable Standard: NEMA WD1/WD6
• Listing: UL Listed
• Country of Origin: Mexico

Standard Information

• Brand: LEGRAND
• Manufacturer Part Number: 670-WG