Cooper Wiring Devices 5261B Nema 5-20R 20A Single Receptacle

Product Description

The COOPER WIRING DEVICES 5261B is a straight blade single receptacle rated at 20 amps and 125 volts AC, configured to NEMA 5-20R standards. Built for industrial-grade applications, this flush-mount outlet features a self-grounding design and a nylon body engineered to resist chemicals, heat, and impact. It accepts standard 3-wire, 2-pole, single-phase wiring via back and side terminals, making it compatible with the wiring methods most commonly used in commercial and industrial installations. Licensed electricians install this device as part of branch-circuit wiring where a 20-amp outlet is required by code or by equipment load demands.

The 5261B is suited for commercial and light industrial environments where durable, code-compliant 20-amp receptacles are required. Its flush-mount profile fits standard single-gang wall boxes and industrial enclosures. The brown color finish is commonly specified in industrial settings to visually distinguish 20-amp circuits from standard 15-amp outlets. Both back-wire and side-wire termination options give installers flexibility when working in tight box fills or conduit runs.

Key Features

• NEMA 5-20R configuration — accepts both 15-amp and 20-amp straight blade plugs
• Self-grounding design eliminates the need for a separate grounding clip during installation
• Industrial-grade nylon body rated for chemical, heat, and impact resistance
• Back and side wiring terminals support multiple installation methods
• Flush-mount profile fits standard single-gang boxes
• Meets CSA, UL Listed, UL Federal Specification, and NOM 426 standards

Compatibility

Designed as an OEM-style industrial replacement or new-installation single receptacle for standard single-gang flush-mount boxes wired on 20-amp, 125-volt branch circuits.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and applicable local codes. De-energize the branch circuit at the panel and verify absence of voltage with a meter before beginning work. Back-wire and side-wire terminals are both available — do not exceed the conductor size rating for each terminal type. Ensure the self-grounding tab makes solid contact with a grounded metal box for the grounding path to be effective.