Appleton CHM-75 Knockout Hub 0.75 Inch

Product Description

The APPLETON CHM-75 is a threaded knockout hub designed for use in electrical enclosures, junction boxes, and panel applications where a secure, code-compliant conduit entry point is required. This hub installs into a standard knockout opening and provides a fixed threaded entry for 3/4-inch conduit. It is a standard hardware fitting handled by licensed electricians during rough-in, service work, and panel installations. Compact and low-profile, it adds minimal depth to an enclosure while seating firmly against the wall of the box.

The CHM-75 is suited for residential and light commercial electrical work where conduit needs to terminate cleanly into a box or enclosure. It is appropriate for use in dry locations and is installed in knockout openings to create a threaded conduit connection point. Electricians reach for this fitting during new construction and retrofit service calls alike.

Key Features

• 3/4-inch threaded conduit entry compatible with standard knockout openings
• Low-profile form factor at 0.160 inches thick for minimal box depth impact
• Lightweight construction at 0.230 pounds for easy single-hand installation
• Fixed hub design provides a secure, stable conduit termination point

Compatibility

Designed as an OEM-style fitting for use with standard 3/4-inch knockout openings in electrical enclosures, junction boxes, and distribution panels.

Installation Notes

Installation is performed by a licensed electrician in accordance with NEC requirements. De-energize the enclosure completely before beginning work. The hub threads into the knockout opening and is tightened using appropriate hand tools against the enclosure wall. Do not overtighten, as this may deform the enclosure material or damage the hub threads.

Technical Specifications

• Conduit Entry Size: 0.75 inches
• Profile Thickness: 0.160 inches
• Package Dimensions (L x W x H): 6.900 x 5.100 x 0.160 inches
• Weight: 0.230 pounds
• UPC: 78312619401

Standard Information

• Brand: APPLETON
• Manufacturer Part Number: CHM-75