Milbank 320A 4-Terminal Ringle...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$898.43
Milbank U5161 4 Terminal Ringless Meter Socket - Large Closing Plate Lever Bypass, Side Bussed

Milbank 320A 4-Terminal Ringless Meter Socket with Lever Bypass - 1-Phase 600V Surface Mount

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Model: U5161-X

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

$898.43
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Milbank 320A 4-Terminal Ringless Meter Socket with Lever Bypass - 1-Phase 600V Surface Mount

Professional electrical metering solution with integrated bypass capability

The Milbank 320A 4-Terminal Ringless Meter Socket delivers reliable electrical metering with integrated lever bypass functionality for professional installations. This 1-phase, 600V unit features robust G90 galvanized steel construction with powder coat finish and Type 3R rating for versatile indoor and outdoor applications. The surface mount design with large closing plate and side bussed configuration provides flexible installation options for overhead, underground, and side wireway cable entry.

Professional Features & Benefits

  • 320 Continuous Ampere Rating: Handles high-capacity electrical loads for commercial and industrial applications with reliable performance.
  • Lever Bypass Provision: Enables safe meter maintenance and replacement without interrupting power service to critical loads.
  • 4-Terminal Ringless Design: Simplifies installation and maintenance with secure connections and reduced installation time.
  • Type 3R Enclosure Rating: Provides protection against weather conditions for reliable outdoor installation performance.
  • G90 Galvanized Steel Construction: Ensures long-term durability and corrosion resistance with professional powder coat finish.
  • UL Listed Certification: Meets rigorous safety standards for code compliance and professional installation confidence.
  • Flexible Cable Entry Options: Accommodates overhead, underground, and side wireway connections for versatile installation requirements.

Technical Specifications

  • Amperage Rating: 320 Continuous Ampere
  • Application: Meter Socket
  • Barrel Lock Provision: 7/8 Inch Knockout and Angle Bracket For Barrel Lock Provision
  • Brand Name: Milbank
  • Bypass Provision: Lever Bypass
  • Cable Entry: Overhead and Underground and Side Wireway
  • Departent: Electrical
  • Equipment Ground: Ground Lug
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Large Closing Plate
  • Insulation: Glass Polyester
  • Load Side Wire Range: Two 6 AWG - 350 kcmil
  • Main Breaker Size: No Main Breaker
  • Number Of Jaws: 4 Terminal
  • Number Of Main Breakers: 0
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 1 Phase
  • Product Family Code: 4T32
  • Product Height: 31.5 IN
  • Product Length: 4.844 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 4.844L x 15W x31.5H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 15 IN

Professional Applications

  • Commercial Building Electrical Service
  • Industrial Facility Power Distribution
  • Multi-Unit Residential Properties
  • Retail and Office Buildings
  • Municipal and Government Facilities
  • Healthcare and Educational Institutions
  • Manufacturing and Processing Plants

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed certification and Type 3R weather protection for professional electrical installations. The robust G90 galvanized steel construction with powder coat finish ensures long-term performance and corrosion resistance, while the comprehensive ground lug provision and glass polyester insulation provide safe, code-compliant operation for demanding commercial and industrial applications.

Manufacturer Resources

Product Specs

Amperage Rating:
320 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Lever Bypass
Cable Entry:
Overhead and Underground and Side Wireway
Equipment Ground:
Ground Lug
Frequency Rating:
60 Hertz
Hub Closing Plate:
Large Closing Plate
Insulation:
Glass Polyester
Load Side Wire Range:
Two 6 AWG - 350 kcmil
Main Breaker Size:
No Main Breaker
Number Of Jaws:
4 Terminal
Number Of Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
1 Phase
Product Family Code:
4T32
Product Height:
31.5 IN
Product Length:
4.844 IN
Product Size:
4.844L x 15W x31.5H
Product Type:
Ringless Meter Socket
Standards:
UL Listed;Type 3R
Unspsc Number:
39121102
Voltage Rating:
600 Volts Alternating Current
Product Material:
G90 Galvanized Steel with Powder Coat Finish
Product Mounting:
Surface Mount
Amps:
320
Product Width:
15 IN
Department:
Electrical
Product Subgroup:
Electrical
Insulation Type:
Glass Polyester
Hub Style:
Large Closing Plate
Installation Category:
Surface Mount
Number of Phases:
1
Product Details:
Ringless Meter Socket
Frequency:
60 hertz
Number of Terminations:
4

Milbank U5161-X – Frequently Asked Questions

1) Will a Milbank U5161-X meter socket work on a 400 amp residential or commercial service?
The U5161-X is rated 320 continuous amperes, which is the standard rating utilities call a 400 amp class self-contained service. It is a 1-phase, 600 VAC, 60 Hz socket with a single meter position and four jaws. If your service is genuinely a 400 amp continuous load or a 3-phase service, this is the wrong socket.
2) What size conductors can I land in the Milbank U5161-X meter socket?
Load side wire range on the U5161-X is two 6 AWG through 350 kcmil per terminal, so a pair of parallel 4/0 or 250 kcmil copper or aluminum runs lands without adapters. Some versions add different lug sets: the U5161-X-K3L-K2L carries single locking connectors at 4 to 600 kcmil plus double locking connectors at 6 to 350 kcmil, which is what you want if you are bringing in a single large 500 or 600 kcmil conductor per phase rather than parallel runs.
3) Is the Milbank U5161-X rated for outdoor wall mounting?
Type 3R and UL Listed, so it mounts outdoors on an exterior wall. Construction is G90 galvanized steel with a powder coat finish, and the socket is surface mount. Type 3R protects against rain and sleet but is not a washdown or dust-tight enclosure, so keep it off of interior process areas that need 4X.
4) Does the Milbank U5161-X include a main breaker or disconnect?
No breaker. The U5161-X is a meter socket only, with no main breaker and no receptacles, so you need a separate service disconnect or a main breaker panel downstream to meet the service disconnect requirement. If you want the meter and main in one can, you are looking for a meter main combination, not this socket.
5) Can I feed a Milbank U5161 socket from underground, or is it overhead only?
Both. Cable entry on the U5161-X is overhead, underground, and side wireway, and it ships with a large closing plate over the hub opening. For an overhead drop you knock the plate and install the meter hub your utility specifies; for an underground lateral you leave the plate in place and bring conductors through the bottom. The side wireway option is what lets you gang it alongside adjacent equipment.
6) Which Milbank U5161-X version do I order if my utility is AEP or Pepco?
Two utility specific versions exist. The U5161-X-K3L-K2L-AEPU is the AEP approved build with single 4 to 600 kcmil and double 6 to 350 kcmil locking connectors. The U5161-X-PEP is built to Pepco specification with lever bypass and side bussed configuration. Utilities publish approved socket lists and will refuse to set a meter on an unapproved can, so match the version to the serving utility before you order.
7) Does the Milbank U5161 meter socket accept a utility barrel lock?
The base U5161-X carries a 7/8 inch knockout and angle bracket for a barrel lock provision. If you want that provision factory fitted along with the locking connector package, order the U5161-X-K3L-K2L-BLG version, which pairs single 4 to 600 kcmil and double 6 to 350 kcmil locking connectors with the barrel lock provision.
8) What is the difference between a ringless meter socket and a ring type socket, and which do I need?
Ringless means the meter cover is held by the socket's own hinged or bolted cover rather than a separate sealing ring clamped around the meter rim. The U5161-X is a ringless, 4 terminal socket. Which one you can install is not your choice, it is the serving utility's: most utilities standardize on one style and will reject the other at inspection. Confirm ringless is what your utility specifies before ordering, since a ring type socket is a completely different can and not a field conversion.
9) Where does the grounding conductor land in a Milbank U5161-X ringless meter socket?
A ground lug is provided for the equipment ground, so the grounding electrode conductor or equipment grounding conductor terminates in the can. Jaw insulation is glass polyester.
How fast can I get the Milbank U5161-X 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 U5161-X come with a warranty?
Absolutely. The Milbank U5161-X 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 U5161-X?
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
Why buy the Milbank U5161-X from ZenSupply?
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