Orbit 4S Steel Cover Blank Cover 1/2 in knockout 4BCK

Product Overview

The Orbit 4BCK is a 4S steel blank cover sized for 4 in x 4 in square electrical boxes. It is made from 16‑gauge sheet steel with a galvanized finish and includes a 1/2 in knockout for conduit or connector entry.

Designed for dry‑location installations, this cover is intended for closing junction boxes, replacement cover work, and contractor rough‑in or maintenance tasks.

Key Features

• Blank cover for 4S (4 in x 4 in) square box openings
• Single 1/2 in knockout
• 16 gauge sheet steel construction with galvanized finish
• Mounts to standard 4S square box
• Location rating: dry location
• Listed certifications: UL, RoHS

What this cover does

The Orbit 4BCK acts as a blank closure for a 4 in x 4 in (4S) electrical box, concealing internal wiring and components and providing one 1/2 in knockout for conduit or connector entry as needed.

• Closes unused or active junction boxes
• Provides a single 1/2 in conduit/connector knockout
• Suitable for contractor rough‑in, replacement, and maintenance tasks

Dimensions and compatibility

Sized for standard 4S square boxes (4 in x 4 in). Verify the box configuration and mounting points to ensure compatibility with this 4S cover.

• Device opening: blank cover (no device cutouts)
• Dimensions: 4 in W x 4 in H
• Mounting type: 4S square box cover mount

Construction and finish

Fabricated from 16 gauge sheet steel with a galvanized finish for basic corrosion resistance in dry interior settings.

• Material: 16 gauge sheet steel
• Finish: Galvanized

Installation notes and location rating

Rated for dry locations. Confirm box size, knockout placement, and mounting method before ordering. Installation should comply with applicable local electrical codes and be performed by qualified personnel.

• Location rating: Dry location
• Certifications: UL, RoHS

Before You Order

Confirm the model number (4BCK), box size, knockout requirement, and quantity before ordering to ensure compatibility.

• Verify the cover fits a 4 in x 4 in (4S) square box and that a single 1/2 in knockout meets your conduit or connector needs.

Ordering from Lumera Electric

Check the purchasing options shown on the Lumera Electric product page for Orbit 4S Steel Cover Blank Cover 1/2 in knockout 4BCK. For project quantities or additional ordering requirements, use Request a Quote and provide the required quantity.