Non-Metallic Device Box 1-Gang 18 cu in 4 Self-Clamping NMD90 Entries · With Clamps · Vista 20471

What this product is for

This 1-gang non-metallic device box is used to mount a switch or receptacle in framed wall construction. It is sized for standard device installation and provides 18 cu in of box volume for branch-circuit wiring.

Use for

Use for new work residential and light commercial installations where you need a non-metallic wall box with integrated cable retention. Suitable for NMD90 cable entries from 14-10 AWG and standard 6-32 device mounting.

Avoid for

Avoid where a metal box is specified, where gangable construction is required, or where box fill exceeds the rated 18 cu in capacity. Confirm box fill, conductor count, and local code requirements before installation.

Best for

Best for electricians roughing in single-device outlet or switch points that need a fast plastic box with built-in clamps and drywall depth references.

Installed in

Typically installed in wood stud walls in houses, suites, and light commercial spaces. The box body measures approximately 3-1/2 in H x 2 in W x 2-5/8 in D (about 89 x 51 x 67 mm).

Why this product exists

It provides a simple way to mount a single wiring device while securing NMD90 cable and maintaining consistent device depth at the finished wall surface. Prepositioned tabs support typical 1/2 in drywall, with additional markings for 5/8 in, 1 in, and 1-1/8 in wall finishes.

Compared with similar products

Compared with shallow or lower-volume single-gang boxes, this 18 cu in design gives more working room for conductors and device terminations. Unlike metal boxes, this non-metallic style does not require the same bonding approach, but application and code requirements should still be verified.

Typical guidance only: larger box volume can make device make-up easier where conductor count is higher. Actual suitability depends on conductor size, device type, internal clamps, and local electrical code.

Specifications

• Type: Non-metallic device box
• Gang: 1-gang
• Catalogue number: 20471
• Box volume: 18 cu in
• Colour: Grey
• Construction: Non-gangable
• Dimensions: 3-1/2 in H x 2 in W x 2-5/8 in D (approximately 89 x 51 x 67 mm)
• Cable entries: 4 self-clamping NMD90 cable clamps
• Cable range: 14-10 AWG
• Device mounting holes: 6-32, 3.28 in apart
• Ground screw provision: 2 x 8-32 ground screw
• Mounting holes: 10
• Drywall references: prepositioned for 1/2 in, marked for 5/8 in, 1 in, and 1-1/8 in
• Material: Polycarbonate ABS
• Flammability rating: UL94 V-0
• Operating temperature: approximately -40 degC to 95 degC continuous
• Compliance: UL 514C, CSA C22.2 No. 18.2-06, ETL file 5000535
• Standard pack: 50