Arlington Industries BT125 NM Cable Connector, 1-1/4" & 1-1/2" Trade Size, 2/0-3/0 AWG Wire Range

Arlington Industries BT125 NM Cable Connector, 1-1/4" & 1-1/2" Trade Size, 2/0-3/0 AWG Wire Range

The Arlington Industries BT125 is an NM (Romex) cable connector purpose-built for large-gauge cable entries, sized to fit 1-1/4" and 1-1/2" knockouts and accommodating a 2/0-3/0 AWG wire range. This connector gives electrical contractors a dependable transition point for heavy-gauge NM cable running into panelboards, service equipment, enclosures, and junction boxes. Whether you're wiring a service entrance, upgrading a panel, or routing large NM cable through an enclosure knockout, the BT125 is sized specifically to handle the demands of 2/0-3/0 AWG conductors without forcing an undersized fitting into a job that calls for a heavier-duty connector.

Key Features

• Trade Size: The BT125 is sized to fit both 1-1/4" and 1-1/2" knockouts, giving installers flexibility when matching the connector to the enclosure or panel opening on the job.
• Wire Range: Rated for a 2/0-3/0 AWG wire range, the BT125 is built to accommodate large-gauge NM (Romex) cable that standard, smaller connectors simply cannot handle.
• Connector Type: As a dedicated NM cable connector, the BT125 is engineered specifically for Romex-style cable rather than conduit, providing a secure mechanical connection point at the box or enclosure wall.
• Application-Specific Sizing: Matching trade size and wire range in a single connector reduces guesswork on the jobsite and helps ensure the cable entry is properly supported and secured at the panel or enclosure.
• Heavy-Gauge Cable Support: Built for 2/0-3/0 AWG conductors, the BT125 is intended for higher-amperage NM cable runs found in service entrance, feeder, and heavy branch-circuit applications.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Large-Gauge NM (Romex) Cable Installations
• Panelboard and Service Equipment Wiring
• Commercial and Industrial Electrical Enclosures
• Electrical Box and Junction Box Cable Entries
• Service Entrance and Feeder Cable Terminations
• New Construction and Electrical Panel Upgrades

Why Arlington Industries?

Arlington Industries builds connectors like the BT125 to meet the specific demands of large-gauge NM cable terminations, giving electrical professionals a fitting sized for 1-1/4" and 1-1/2" knockouts and a 2/0-3/0 AWG wire range rather than a generic, one-size-fits-all connector. For installers who need a dependable, application-matched fitting for heavy NM cable entries, the BT125 is engineered to make that connection secure and straightforward. Choosing a connector sized correctly for your wire range and knockout helps keep the installation organized, properly supported, and ready for inspection.