Appleton CHM-150 Knockout Hub 1-1/2 Inch Rigid Conduit

Product Description

The APPLETON CHM-150 is a knockout hub designed for use with 1-1/2 inch rigid conduit entries. It provides a secure, code-compliant termination point at enclosure knockouts, seating firmly against the wall of a box or panel to maintain conduit alignment and mechanical support. Licensed electricians and electrical contractors install this fitting during rough-in and final trim on commercial and industrial projects. The CHM-150 weighs 0.5 pounds and ships in a compact package, making it easy to stage on the job.

This knockout hub is suited for rigid conduit installations at electrical enclosures, junction boxes, pull boxes, and panelboards where a 1-1/2 inch knockout is present. It is a standard fitting used across commercial construction, industrial facilities, and infrastructure projects where rigid metal conduit systems are required by code or specification.

Key Features

• Fits 1-1/2 inch rigid conduit knockout openings
• Provides mechanical support and secure conduit termination at enclosure walls
• Compact form factor suited for tight enclosure entry conditions
• Lightweight at 0.5 pounds for easy handling and staging

Compatibility

Designed as an OEM-style fitting for use with 1-1/2 inch rigid conduit systems at standard knockout enclosure entries.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the enclosure before beginning work. Seat the hub fully into the knockout opening and secure with the locknut per standard practice before pulling conductors. Do not overtighten in a way that distorts the enclosure wall.

Technical Specifications

• Conduit Size: 1-1/2 inches
• Conduit Type: Rigid
• Weight: 0.5 pounds
• Package Dimensions (L x W x H): 5 inches x 4 inches x 2 inches
• UPC: 78312619404

Standard Information

• Brand: APPLETON
• Manufacturer Part Number: CHM-150