Milbank U4166-XT-Z21-LI Meter Socket 400-800A 1-phase

Product Description

The MILBANK U4166-XT-Z21-LI is a single-phase underground service meter socket rated for 400 to 800 amps. It is designed for residential and light commercial electrical metering applications where the utility service enters from below grade. The unit accommodates the utility meter and provides a secure, weatherproof termination point between the incoming service conductors and the customer load side. Licensed electricians install this type of meter socket as part of a new service installation or a service upgrade, working in coordination with the local utility for final meter seating and inspection.

This meter socket is suited for single-phase underground electrical service entrances in residential subdivisions, multi-family properties, and light commercial sites. The 400 to 800 amp rating range supports high-capacity service installations where large load centers or multiple subpanels are fed from a single metering point. It is intended for use where the local utility and authority having jurisdiction (AHJ) require an underground service entrance configuration.

Key Features

• 400 to 800 amp rating supports high-capacity single-phase service installations
• Single-phase configuration for standard residential and light commercial utility metering
• Underground service entry accommodates below-grade conduit runs from the utility
• Constructed for weatherproof, outdoor meter base applications
• 160 pounds shipping weight indicates a heavy-duty enclosure suitable for large-service terminations

Compatibility

Designed as an OEM-style underground meter socket for single-phase 400 to 800 amp electrical service entrance applications. Verify utility meter jaw compatibility and local AHJ acceptance before installation.

Installation Notes

Installation must be performed by a licensed electrician in accordance with NFPA 70 (National Electrical Code) and all applicable local codes. De-energize the utility service and confirm lockout with the utility provider before working on any service entrance equipment. The underground conduit entry must be sealed against moisture intrusion per applicable code requirements. Final meter installation is performed by the utility only after inspection approval.

Technical Specifications

• Amperage Rating: 400-800 amps
• Phase: 1-Phase
• Service Entry: Underground
• Weight: 160 pounds
• UPC: 78457217849

Standard Information

• Brand: MILBANK
• Manufacturer Part Number: U4166-XT-Z21-LI