Milbank U2272-RL 125A Ringless...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$518.04
Milbank U2272-RL 125A ringless meter socket, interior view, lever bypass in normal position, 1-phase 600V, Type 3R enclosure

Milbank U2272-RL 125A Ringless Meter Socket with Lever Bypass, Type 3R Enclosure

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Model: U2272-RL

In Stock (leaves warehouse same day if ordered before 3pm ET)

$518.04
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Milbank U2272-RL 125A Ringless Meter Socket with Lever Bypass, Type 3R Enclosure

The Milbank U2272-RL Ringless Meter Socket delivers 125A continuous service at 600V AC for single-phase applications. Built with G90 galvanized steel and a powder coat finish inside a Type 3R enclosure, this surface-mount, 5-terminal socket features an integrated lever bypass for safe meter removal without interrupting service to downstream loads. UL Listed for professional-grade performance, the U2272-RL accepts 6 AWG to 2/0 AWG line and load wiring with lay-in termination, and is configured for overhead cable entry to match common utility service drop layouts. With a single meter position and 60 Hertz frequency rating, this ringless design eliminates the need for a metal sealing ring, simplifying installation while maintaining a secure, code-compliant connection point for residential, commercial, and light industrial metering. Measuring 4.844" L x 10" W x 18.5" H, the enclosure features a small hub opening and glass polyester insulation for reliable dielectric performance, with an equipment ground lug included for proper bonding.

Key Features

  • Amperage Rating: 125A continuous service rating for reliable single-phase power delivery.
  • Voltage Rating: 600V AC rating supports demanding professional-grade metering applications.
  • 5-Terminal Ringless Design: No metal ring required for mounting, simplifying field installation.
  • Lever Bypass Provision: Enables safe meter removal without interrupting service to critical loads.
  • Type 3R Enclosure: G90 galvanized steel body with powder coat finish for outdoor-rated durability.
  • Wire Range: Line and load side terminals accept 6 AWG to 2/0 AWG conductors with lay-in termination.
  • Overhead Cable Entry: Matches common utility service drop configurations for straightforward hookup.
  • Single-Position, 1-Phase: Designed for 1-Phase service with a single meter position and 60 Hertz frequency rating.
  • Insulation: Glass polyester insulation with an included ground lug for equipment bonding.
  • Hub Style: Small hub opening for compatible service entrance connections.

Certifications & Compliance

  • UL Listed
  • Type 3R Rated Enclosure

Technical Specifications

  • Frequency Rating: 60 Hertz
  • Line Side Wire Range: 6 - 2/0 AWG
  • Load Side Wire Range: 6 - 2/0 AWG
  • Number Of Main Breakers: 0
  • Number Of Receptacles: 0
  • Amps: 125
  • Number of Phases: 1
  • Number of Terminations: 5
  • Voltage Rating: 600 Volts Alternating Current
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Terminal Type: Lay In
  • Number Of Meter Positions: 1 Position
  • Product Size: 4.844L x 10W x 18.5H
  • Equipment Ground: Ground Lug
  • Hub Closing Plate: Small Hub Opening
  • Insulation: Glass Polyester
  • Standards: UL Listed; Type 3R

Typical Applications

  • Residential Electrical Service Metering
  • Commercial Building Power Monitoring
  • Multi-Unit Property Electrical Distribution
  • Light Industrial Electrical Installations
  • Utility Service Drop Metering Points

Why Milbank?

Milbank backs the U2272-RL with UL Listed certification and Type 3R weather-resistant construction for dependable outdoor performance. The G90 galvanized steel body and powder coat finish deliver long-term corrosion resistance, while the ringless design and lever bypass provide the serviceability contractors need for code-compliant, single-phase metering installations. With glass polyester insulation and a ground lug for reliable bonding, the U2272-RL is engineered for dependable long-term utility metering service.

Manufacturer Resources

Product Specs

Amperage Rating:
125 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Lever Bypass
Cable Entry:
Overhead
Equipment Ground:
Ground Lug
Frequency Rating:
60 Hertz
Hub Closing Plate:
Small Hub Opening
Insulation:
Glass Polyester
Line Side Wire Range:
6 - 2/0 AWG
Load Side Wire Range:
6 - 2/0 AWG
Main Breaker Size:
No Main Breaker
Number Of Jaws:
5 Terminal
Number Of Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
1 Phase
Product Family Code:
MD5T
Product Height:
18.5 IN
Product Length:
4.844 IN
Product Size:
4.844L x 10W x18.5H
Product Type:
Ringless Meter Socket
Standards:
UL Listed;Type 3R
Terminal:
Lay in
Unspsc Number:
39121102
Voltage Rating:
600 Volts Alternating Current
Product Material:
G90 Galvanized Steel with Powder Coat Finish
Product Mounting:
Surface Mount
Amps:
125
Product Width:
10 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Insulation Type:
Glass Polyester
Hub Style:
Small Hub Opening
Installation Category:
Surface Mount
Terminal Type:
Lay In
Number of Phases:
1
Product Details:
Ringless Meter Socket
Frequency:
60 hertz
Number of Terminations:
5
Product Group:
Power Distribution

Milbank U2272-RL – Frequently Asked Questions

1) Will the Milbank U2272-RL meter socket work on my utility's 5-jaw single-phase service?
The U2272-RL is a 5-terminal (5-jaw) single-phase socket rated 125A continuous at 600V AC, 60 Hz, with one meter position. Five jaws is the network/single-phase three-wire arrangement some utilities require instead of the more common 4-jaw. Before you set it, confirm the serving utility's approved socket list, since jaw count and bypass type are utility-specified. If your utility calls for a 4-jaw socket, this is the wrong part.
2) Does the Milbank U2272-RL include a main breaker or do I need a separate disconnect?
No breaker in it. The U2272-RL is a meter socket only, no main breaker and no receptacles, so the service disconnect and overcurrent protection have to come from a separate panel or disconnect downstream. Plan on landing the load side conductors and running them to your main breaker enclosure.
3) What size service conductors can I land in a Milbank U2272-RL ringless meter socket?
Both line and load terminals on the U2272-RL take 6 AWG through 2/0 AWG, and they are lay-in terminals, so you drop the conductor in rather than fishing it through a hole. That range covers a typical 125A copper or aluminum service. If your service run is upsized past 2/0 for voltage drop, the conductors will not land here and you need a larger socket.
4) Can I mount this Milbank meter socket outdoors on an exterior wall?
Yes. It is a Type 3R enclosure, UL Listed, built from G90 galvanized steel with a powder coat finish, and it surface mounts flat to the wall. Type 3R is rain-tight for outdoor use but not washdown or dust-tight, so it belongs on a building exterior, not inside a wet process area.
5) Is the Milbank U2272-RL for overhead service or underground lateral?
Overhead. The U2272-RL is configured for overhead cable entry with a small hub opening at the top for your service entrance conduit or weatherhead riser. For an underground lateral you want a socket built for bottom or side entry instead.
6) What is the difference between the Milbank U2272-RL and the U2272-RL-5T9-BL?
Same 125A 5-terminal ringless socket, different lock provision. The base U2272-RL is the standard build. The U2272-RL-5T9-BL adds a 9/16 inch knockout and angle bracket for a barrel lock, which is what you order when the utility seals the cover with a barrel lock rather than a wire seal. Order the barrel lock version if that is what your utility requires; the bracket is not something you add cleanly in the field.
7) What does the lever bypass on a Milbank meter socket actually do for me?
The lever bypass lets you pull the meter without dropping power to the load. You throw the lever, current routes around the meter jaws, and the meter comes out for change-out or testing while the tenant stays lit. On a socket with no bypass you kill the service to touch the meter. Many utilities mandate bypass on commercial and multi-family services for exactly this reason.
8) What is the difference between a ringless meter socket and a ring-type one?
A ringless socket like the U2272-RL uses a hinged or lift-off cover that seals over the meter instead of a separate sealing ring clamped around the rim. Utilities generally specify one style or the other for their territory, and the meter cover is not interchangeable between the two. Check which style your utility seals before ordering, because a ringless socket will not accept a ring-type cover.
9) Is there a place to land the grounding electrode conductor in this Milbank socket?
A ground lug is provided in the U2272-RL for the equipment ground, so you have a factory landing point rather than drilling and adding one. Confirm the lug's conductor range suits your grounding electrode conductor before you terminate.
10) Will a 125A meter socket rated 600V work on a standard 120/240V residential service?
Yes. The 600V AC rating on the U2272-RL is the maximum insulation rating, not a requirement, so it covers standard single-phase 120/240V services as well as higher single-phase voltages up to 600V at 60 Hz. The glass polyester insulation and jaw assembly are what carry that rating.
11) Can I use the Milbank U2272-RL to meter more than one unit in a small apartment building?
One unit only. The U2272-RL carries a single meter position, so each dwelling or tenant needs its own socket. For a building where you want several meters behind one set of service conductors, a multi-position meter stack is the right product type instead of ganging individual sockets.
12) Is the Milbank U2272-RL rated for continuous 125 amp load or is that a peak rating?
125 amps continuous. That is the continuous ampere rating on the socket, so it is not a short-term or intermittent figure. Size the service and the downstream main to that ceiling, and remember there is no overcurrent device inside the socket to protect it.
How fast can I get the Milbank U2272-RL delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Milbank U2272-RL come with a warranty?
Absolutely. The Milbank U2272-RL is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Milbank U2272-RL?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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