Milbank 200A 1-Phase Ringless ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$416.88
Milbank U3278-XL-TG 4 Terminal Ringless Small Closing Plate Lever Bypass Triplex Ground

Milbank 200A 1-Phase Ringless Meter Socket with Lever Bypass and Small Closing Plate (2)

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Model: U3278-XL-TG

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

$416.88
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Milbank 200A 1-Phase Ringless Meter Socket with Lever Bypass and Small Closing Plate

Professional electrical metering solution with integrated bypass capability

The Milbank 200A 1-Phase Ringless Meter Socket delivers reliable electrical metering with integrated lever bypass functionality for professional installations. Featuring G90 galvanized steel construction with powder coat finish and Type 3R enclosure rating, this surface-mount meter socket accommodates 6 AWG to 350 kcmil wire ranges on both line and load sides. The 4-terminal design with lay-in terminals and bonded neutral equipment ground ensures secure connections for 600V AC applications.

Professional Features & Benefits

  • 200 Continuous Ampere Rating: Handles substantial electrical loads for residential and light commercial applications with reliable current capacity.
  • Lever Bypass Provision: Enables safe meter maintenance and replacement without interrupting power service to critical loads.
  • Type 3R Enclosure Rating: Weather-resistant construction protects internal components from rain, sleet, and ice formation in outdoor installations.
  • G90 Galvanized Steel with Powder Coat: Corrosion-resistant materials ensure long-term durability in harsh environmental conditions.
  • 4-Terminal Ringless Design: Simplifies installation with lay-in terminals accommodating wide wire range from 6 AWG to 350 kcmil.
  • UL Listed Certification: Meets rigorous safety standards for electrical equipment ensuring code compliance and installation confidence.
  • Overhead or Underground Cable Entry: Versatile design accommodates various service entrance configurations for flexible installation options.

Technical Specifications

  • Amperage Rating: 200 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: Lever Bypass
  • Cable Entry: Overhead or Underground
  • Departent: Electrical
  • Equipment Ground: Bonded Neutral
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Small Closing Plate
  • Insulation: Glass Polyester
  • Line Side Wire Range: 6 AWG - 350 kcmil
  • Load 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 Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 1 Phase
  • Product Family Code: 4T20
  • Product Height: 15.5 IN
  • Product Length: 4.125 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 4.125L x 11W x15.5H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Lay in
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 11 IN

Professional Applications

  • Residential Service Entrance Metering
  • Small Commercial Building Electrical Service
  • Multi-Unit Residential Properties
  • Professional Office Buildings
  • Retail and Light Commercial Establishments
  • Utility Company Metering Installations
  • Electrical Contractor Service Upgrades

Why Choose Milbank Quality?

Milbank meter sockets deliver proven reliability with UL Listed certification and Type 3R weather-resistant construction. The G90 galvanized steel with powder coat finish ensures long-term durability, while the comprehensive wire range compatibility and lever bypass provision provide professional installation flexibility and maintenance convenience for electrical contractors and utility professionals.

Manufacturer Resources

Product Specs

Amperage Rating:
200 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Lever Bypass
Cable Entry:
Overhead or Underground
Equipment Ground:
Bonded Neutral
Frequency Rating:
60 Hertz
Hub Closing Plate:
Small Closing Plate
Insulation:
Glass Polyester
Line Side Wire Range:
6 AWG - 350 kcmil
Load 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 Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
1 Phase
Product Family Code:
4T20
Product Height:
15.5 IN
Product Length:
4.125 IN
Product Size:
4.125L x 11W x15.5H
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:
200
Product Width:
11 IN
Department:
Electrical
Product Subgroup:
Electrical
Product Group:
Metering & Service Entrance

Milbank U3278-XL-TG – Frequently Asked Questions

1) Will a Milbank U3278-XL-TG meter socket work for a 200 amp single phase residential service upgrade?
That's exactly what the U3278-XL-TG is built for. It's a 200 continuous ampere, 1 phase, 4 terminal ringless socket rated 600V AC at 60 Hertz, with one meter position. Line and load lugs both take 6 AWG through 350 kcmil, so it covers the usual 4/0 aluminum or 2/0 copper 200A service conductors with room either side. Surface mount, and the cabinet can be fed overhead or underground. One thing to settle before you order: it has no main breaker, so overcurrent protection has to live downstream in the panel.
2) Does the Milbank U3278-XL-TG meter socket include a main breaker or main disconnect?
No. The U3278-XL-TG is a socket only, with zero main breakers and no receptacles. You'll need a separate service disconnect or main breaker panel downstream. If the job calls for the disconnect in the same can, you want a meter-main combination unit instead, not this socket.
3) What does lever bypass mean on a Milbank meter socket, and do I need it?
Lever bypass lets the utility or a qualified tech shunt current around the meter jaws so the meter can be pulled and swapped without dropping power to the load. On the U3278-XL-TG it's a lever mechanism, not a screw type. Many utilities specify bypass on 200A residential and light commercial services, and some require it for anything feeding a load that can't be interrupted. Check the socket spec on your serving utility's approved list before you buy, because a non bypass socket won't pass their inspection where bypass is required.
4) Can a Milbank U3278-XL-TG ringless meter socket be mounted outdoors on an exterior wall?
Yes, it's a Type 3R enclosure, which is the outdoor rating for protection against rain, sleet and ice formation on the enclosure. Body is G90 galvanized steel with a powder coat finish, so it holds up on an exterior wall. It's surface mount, so it lands flat on the wall or backer board rather than recessing into it. Type 3R is not rated for washdown or submersion.
5) Will 4/0 aluminum service entrance cable land in a Milbank 200A meter socket?
It will. Both the line and load terminals on the U3278-XL-TG accept 6 AWG through 350 kcmil, which brackets 4/0 aluminum comfortably. They're lay-in terminals, so the conductor drops into the lug rather than having to be threaded through, which is the difference between a ten minute termination and a fight in a tight can. Same range on both sides, so you're not sizing separate lug kits for line and load.
6) Does the Milbank U3278-XL-TG have a hub opening for overhead service, or do I need to punch it?
It ships with a small closing plate over the hub opening, and it's set up for either overhead or underground cable entry. For an overhead drop you remove the closing plate and fit the hub your raceway size calls for. That hub is a separate order item, sized to the conduit you're running. For underground you leave the closing plate in place and bring the lateral in from below.
7) Is the neutral bonded in a Milbank U3278-XL-TG meter socket?
Yes, equipment ground is bonded neutral in the U3278-XL-TG. On a service entrance socket ahead of the main disconnect that's what you want, since the grounded conductor and the enclosure are intentionally tied at the service point. It also means this socket isn't the right choice downstream of a service disconnect, where neutral and ground have to stay separated.
8) Can I use a 4 terminal 200A single phase meter socket on a three phase service?
No. The U3278-XL-TG is a 4 terminal, 1 phase socket for a single phase 3 wire service. A three phase service needs a 7 jaw socket and won't meter correctly through 4 jaws. If the building is three phase, this is the wrong part, and the same is true if the utility has specified a 5 jaw socket for a network or specific 120/208 single phase arrangement.
9) What is the difference between a ringless meter socket and a ring type socket, and which one does my utility want?
A ringless socket like the U3278-XL-TG uses a removable cover that the utility seals directly, instead of a sealing ring clamping the meter to the socket rim. The utility dictates which style is accepted in their territory, and the two are not interchangeable at the cover. Ringless is the common specification across much of the country. Confirm with the serving utility, since ordering the wrong style means the meter won't be set.
10) How much wall space do I need for a Milbank U3278-XL-TG meter socket?
The socket measures 4.125 x 11 x 15.5 inches, listed as 4.125L x 11W x 15.5H. Surface mounted, so allow that footprint on the wall plus clearance in front of the meter for the utility to set and pull it, and room below or above for the service raceway depending on whether you're coming in overhead or underground.
11) What insulates the jaws in a Milbank meter socket, and how does it hold up in an outdoor can?
Glass polyester carries the jaws in the U3278-XL-TG. It's a thermoset with good dielectric strength and dimensional stability under heat, which matters in a socket that runs 200 continuous amperes behind a sealed 3R cover in summer sun. Paired with the G90 galvanized steel shell and powder coat, the assembly is built for permanent exterior mounting.
How fast can I get the Milbank U3278-XL-TG 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 U3278-XL-TG come with a warranty?
Absolutely. The Milbank U3278-XL-TG 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 U3278-XL-TG?
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 U3278-XL-TG from ZenSupply?
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