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Gray carbon-steel wall-mount enclosure 18 by 18 by 4 inches with screw cover

Wiegmann

Wiegmann SC181804 line protection enclosure 18 in H 18 in W 4 in D

SKU CH-03BJ-X4FF3

A carbon-steel wall-mount enclosure rated NEMA 1 with a solid screw-on cover, 18 in high, 18 in wide and 4 in deep

  • NEMA 1 rated for indoor protection
  • 16 ga carbon steel with ANSI 61 powder coat
  • cULus and CSA certified for code compliance
  • Embossed mounting holes simplify wall installation
  • 88 in usable depth fits components

Enclosure for indoor line protection

The Wiegmann SC181804 is a NEMA 1 rated carbon-steel enclosure designed to house circuit breakers and line-protection devices in dry indoor locations. It suits electricians and panel builders who need a wall-mounted box for standard electrical distribution equipment.

Critical spec: 16-gauge steel with ANSI 61 finish

The body is 16-gauge carbon steel finished in ANSI 61 gray powder coat, providing the structural rigidity and corrosion resistance required for permanent indoor installations. The solid cover fastens with plated steel captive screws and the unit carries cULus and CSA certifications.

Straightforward wall mounting

Embossed mounting holes and included self-tapping screws allow direct attachment to a wall or backboard without separate hardware. The usable opening depth is 3.88 in, so installers must verify that internal components and wiring bend radii fit within this space before closing the cover.

How it compares

Measured against everything we stock in Breakers & Circuit Protection, at today’s prices. Recalculated every night.

Price $55.99
Typical for this category: the median of 1,135 items is $54.99.

Specifications

Product
Brand nameWIEGMANN

Questions about this item

What does the 18-inch height mean for the usable space inside?

The enclosure stands 18 inches tall and provides a usable opening depth of 3.88 inches for mounting components.

What does the cULus and CSA certification cover for this enclosure?

The certifications confirm the carbon-steel enclosure meets UL and CSA safety standards for indoor electrical protection.

How do the embossed mounting holes work for wall installation?

Embossed mounting holes on the back allow direct wall mounting with screws, and self-tapping screws are included.

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