Milbank 4 Terminal Ringless Me...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,470.65
$1,447.59
Milbank 4 Terminal Ringless Meter Socket with Lever Bypass 125 Ampere

Milbank 4 Terminal Ringless Meter Socket with Lever Bypass 125A 1 Phase Surface Mount

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Model: U3763-XL

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

$1,470.65
$1,447.59
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Milbank 4 Terminal Ringless Meter Socket with Lever Bypass 125A 1 Phase Surface Mount

Professional electrical metering solution with convenient bypass functionality

The Milbank 4 Terminal Ringless Meter Socket delivers reliable electrical metering for residential and commercial applications. Featuring a 125 continuous ampere rating with 1 phase 300V AC capacity, this surface mount unit includes lever bypass provision for convenient maintenance operations. Constructed with G90 galvanized steel and powder coat finish for durability, the socket accommodates overhead or underground cable entry with lay-in terminals supporting 6 AWG to 350 kcmil wire range.

Professional Features & Benefits

  • 125 Continuous Ampere Rating: Provides reliable power handling capacity for demanding residential and light commercial electrical systems.
  • Lever Bypass Provision: Enables safe maintenance operations and meter changes without service interruption to critical loads.
  • 4 Terminal Ringless Design: Simplifies installation with secure lay-in terminal connections for enhanced reliability and reduced installation time.
  • G90 Galvanized Steel Construction: Delivers superior corrosion resistance and long-term durability in various environmental conditions.
  • UL Listed Type 3R Rating: Ensures compliance with safety standards and provides protection against weather conditions for outdoor installations.
  • Flexible Cable Entry: Accommodates both overhead and underground service connections for versatile installation options.
  • Wide Wire Range Compatibility: Accepts conductors from 6 AWG to 350 kcmil for flexible system design and future expansion capabilities.

Technical Specifications

  • Amperage Rating: 125 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: Lever Bypass
  • Cable Entry: Overhead or Underground
  • Departent: Electrical
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Small Closing Plate
  • Insulation: Glass Polyester
  • Line Side Wire Range: 6 AWG - 350 kcmil
  • Main Breaker Size: No Main Breaker
  • Number Of Jaws: 4 Terminal
  • Number Of Main Breakers: 0
  • Number Of Receptacles: 0
  • Phase: 1 Phase
  • Product Family Code: G125
  • Product Length: 4.5 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Lay in
  • Unspsc Number: 39121102
  • Voltage Rating: 300 Volts Alternating Current

Professional Applications

  • Residential electrical service metering and distribution
  • Commercial building electrical systems
  • Multi-unit residential properties
  • Light industrial facilities
  • Retail and office building electrical infrastructure
  • Municipal and institutional electrical installations

Why Choose Milbank Quality?

Milbank meter sockets provide dependable electrical metering solutions backed by UL Listed certification and Type 3R weather protection rating. The robust G90 galvanized steel construction with powder coat finish ensures long-term performance in demanding electrical applications, while the comprehensive glass polyester insulation system delivers reliable operation and safety compliance for professional installations.

Manufacturer Resources

Product Specs

Amperage Rating:
125 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Lever Bypass
Cable Entry:
Overhead or Underground
Frequency Rating:
60 Hertz
Hub Closing Plate:
Small Closing Plate
Insulation:
Glass Polyester
Line Side Wire Range:
6 AWG - 350 kcmil
Main Breaker Size:
No Main Breaker
Number Of Jaws:
4 Terminal
Number Of Main Breakers:
0
Number Of Receptacles:
0
Phase:
1 Phase
Product Family Code:
G125
Product Length:
4.5 IN
Product Type:
Ringless Meter Socket
Standards:
UL Listed;Type 3R
Terminal:
Lay in
Unspsc Number:
39121102
Voltage Rating:
300 Volts Alternating Current
Product Material:
G90 Galvanized Steel with Powder Coat Finish
Product Mounting:
Surface Mount
Amps:
125
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Insulation Type:
Glass Polyester
Hub Style:
Small Closing Plate
Installation Category:
Surface Mount
Terminal Type:
Lay In
Number of Phases:
1
Frequency:
60 hertz
Product Details:
Ringless Meter Socket
Product Group:
Power Distribution

Milbank U3763-XL – Frequently Asked Questions

1) Will a Milbank U3764-XL ringless meter socket work if my utility requires a ringed socket?
No. The Milbank U376-XL family is a ringless socket, which uses a hinged or bolt-on cover rather than a sealing ring around the meter. Utilities specify one or the other, and they are not interchangeable. Check your utility's approved meter equipment list before ordering; if they require a ring-type socket, this is the wrong part.
2) What is the difference between the 3, 4, and 5 position Milbank U376-XL meter sockets?
Position refers to the meter socket's mounting position designation, and it is the only thing that changes across the three: U3763-XL is position 3, U3764-XL is position 4, and U3765-XL is position 5. All three are 125 amp continuous, 4 terminal ringless, single phase, 300 VAC, with lever bypass. Your utility dictates which position they will accept, so order to their spec sheet.
3) Can I land 4/0 aluminum or 350 kcmil service conductors in this Milbank 125A meter socket?
Yes. The line side terminals on the U376-XL sockets are lay-in type and accept 6 AWG through 350 kcmil, so 4/0 aluminum service entrance cable lands directly with no reducers or pin terminals. Lay-in terminals mean you drop the conductor in and torque the lug rather than threading it through a closed barrel, which is faster on a stiff 350.
4) Is this Milbank ringless meter socket rated for outdoor mounting on the side of a building?
Yes. The U376-XL socket is UL Listed and Type 3R rated, which covers outdoor use against rain and falling debris, and it is surface mount so it bolts flat to an exterior wall. The enclosure is G90 galvanized steel with a powder coat finish for corrosion resistance.
5) Does the Milbank U376-XL meter socket include a main breaker or disconnect?
No. The U376-XL is a meter socket only, with no main breaker and no receptacles. If your service needs a disconnect at the meter, you need a meter main combination or a separate service disconnect downstream. The lever bypass in this socket is for pulling the meter under load, not for disconnecting the service.
6) Can I use a 4 terminal 125A meter socket on a 120/240V single phase residential service?
Yes. Four jaws with a single phase, 300 VAC rating at 60 Hz is the standard configuration for a 120/240 volt three wire residential or light commercial service. It is not for network or three phase metering; a three phase service needs a 7 jaw socket instead.
7) Why would I pay for a lever bypass meter socket instead of a plain one?
The lever bypass lets you shunt current around the meter so the meter can be pulled and swapped without dropping power to the load. On an occupied apartment building, a medical office, or anything with a tenant behind it, that is the difference between a meter change and a scheduled outage. Many utilities also mandate bypass on their approved list, so confirm with them before choosing a non-bypass socket.
8) Does this Milbank socket work for an underground service lateral, or only overhead?
Both. Cable entry on the U376-XL is overhead or underground, so it takes a weatherhead drop through the top or conduit up from a lateral. A small closing plate is provided for the hub opening, which you knock out and fit with the appropriate hub for an overhead conduit riser or leave plated for an underground bottom feed.
9) What insulates the jaws in the Milbank U376-XL, and does it hold up in a hot attic or a coastal install?
Glass polyester carries the jaw assembly, which is the standard high-strength thermoset used in meter sockets for its dielectric and heat performance. The enclosure around it is G90 galvanized steel with powder coat, a zinc coating weight aimed at outdoor corrosion resistance, and the whole unit is Type 3R for weather exposure.
10) How deep does a Milbank U376-XL meter socket stand off the wall?
Product length on the U376-XL is stated as 4.5 inches. That matters where the socket sits under a soffit, behind a fence line, or in a tight utility alcove with a clearance requirement, so measure your working space against it before you set the mounting holes.
11) What UNSPSC code should I use for a Milbank ringless meter socket on a purchase order?
UNSPSC 39121102 covers the U376-XL ringless meter socket. That is the code to drop into a procurement system or a bid line item when a facility or municipal buyer needs the commodity classified.
How fast can I get the Milbank U3763-XL 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 U3763-XL come with a warranty?
Absolutely. The Milbank U3763-XL 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 U3763-XL?
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 U3763-XL from ZenSupply?
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