Eaton 37MM140R1240 Meter Socket 400A 3PH 4W

Product Description

The EATON 37MM140R1240 is a 400-amp, 3-phase, 4-wire, 1-gang meter socket designed for commercial and industrial electrical metering applications. Rated at 400 amps continuous, it provides a secure, code-compliant termination point between the utility service entrance and downstream distribution equipment. The socket accommodates a standard utility meter and is built to handle the demands of 3-phase service installations. Licensed electricians and electrical contractors handle installation as part of a service entrance assembly.

This meter socket is suited for commercial buildings, industrial facilities, and multi-tenant applications requiring 3-phase power metering. It is a 1-gang unit, meaning it accepts a single utility meter. The 400A rating makes it appropriate for larger service entrance configurations where single-phase metering would be insufficient. Install it at the point of service entrance per local utility requirements and applicable electrical codes.

Key Features

• 400-amp continuous rating supports large commercial and industrial service entrances
• 3-phase, 4-wire configuration for balanced polyphase power metering
• 1-gang design accommodates a single utility meter
• Designed for service entrance installation per NEC requirements
• Heavy-duty construction rated for 110 pounds shipping weight indicating robust enclosure build

Compatibility

Designed as an OEM-style replacement or direct-install meter socket for 3-phase, 4-wire commercial and industrial service entrance assemblies requiring a 400-amp, 1-gang metering point.

Installation Notes

Installation must be performed by a licensed electrician in accordance with NEC Article 230 (Service Entrances) and applicable local utility interconnection requirements. De-energize and confirm the service is fully isolated before working on the meter socket enclosure. Verify utility meter jaw compatibility and enclosure sealing requirements with the local utility authority having jurisdiction before installation. Do not energize the socket until the utility has inspected and approved the installation.