Milbank 100A 1-Phase Ringless ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,133.14
Milbank 100A 1-Phase Ringless Meter Socket with Main Breaker and Lever Bypass

Milbank 100A 1-Phase Ringless Meter Socket with Main Breaker and Lever Bypass System

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Model: U3741-XL-100-BL

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

$1,133.14
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Milbank 100A 1-Phase Ringless Meter Socket with Main Breaker and Lever Bypass System

Professional electrical metering solution with integrated main protection and bypass functionality

The Milbank 100A 1-Phase Ringless Meter Socket delivers reliable electrical metering with integrated main breaker protection and convenient lever bypass operation. This professional-grade meter socket features G90 galvanized steel construction with powder coat finish, UL Listed Type 3R rating for outdoor applications, and glass polyester insulation for dependable performance in residential and commercial installations.

Professional Features & Benefits

  • 100 Continuous Ampere Rating: Provides robust capacity for residential and light commercial electrical service applications with reliable current handling.
  • Integrated Main Breaker Protection: Features one 100 ampere main breaker for comprehensive electrical protection and convenient service disconnect capability.
  • Lever Bypass Provision: Enables safe meter maintenance and replacement without interrupting electrical service to the facility.
  • Type 3R Enclosure Rating: UL Listed weatherproof construction protects against rain, sleet, and ice formation for reliable outdoor installation.
  • G90 Galvanized Steel Construction: Durable material with powder coat finish ensures long-term corrosion resistance and professional appearance.
  • Flexible Cable Entry: Accommodates both overhead and underground service connections for versatile installation options.
  • Professional Wire Management: Line side 6-2/0 AWG and load side 4-1/0 AWG wire ranges with lay-in terminals for secure connections.

Technical Specifications

  • Amperage Rating: 100 Continuous Ampere
  • Application: Meter Socket With Main
  • Brand Name: Milbank
  • Bypass Provision: Lever Bypass
  • Cable Entry: Overhead or Underground
  • Departent: Electrical
  • Equipment Ground: 3 Barrel Ground Lug
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Small Closing Plate
  • Insulation: Glass Polyester
  • Line Side Wire Range: 6 - 2/0 AWG
  • Load Side Wire Range: 4 - 1/0 AWG
  • Main Breaker Size: One 100 Ampere Main Breaker
  • Number Of Jaws: 4 Terminal
  • Number Of Main Breakers: 1
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 1 Phase
  • Product Family Code: MMMD
  • Product Height: 28 IN
  • Product Length: 4.844 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 4.844L x 13W x28H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Lay in
  • Unspsc Number: 39121102
  • Voltage Rating: Up to 240 Volts Alternating Current
  • Width: 13 IN

Professional Applications

  • Residential electrical service installations requiring integrated main protection
  • Small commercial facilities with single-phase power requirements
  • Retrofit applications where main breaker protection is needed
  • Utility meter installations requiring bypass capability for maintenance
  • Multi-unit residential properties with individual metering needs
  • Professional electrical contractor installations

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed construction, Type 3R weatherproof rating, and durable G90 galvanized steel materials. The integrated main breaker protection and lever bypass functionality provide professional-grade electrical metering solutions backed by quality manufacturing standards for dependable long-term performance.

Manufacturer Resources

Product Specs

Amperage Rating:
100 Continuous Ampere
Application:
Meter Socket With Main
Brand Name:
Milbank
Bypass Provision:
Lever Bypass
Cable Entry:
Overhead or Underground
Equipment Ground:
3 Barrel Ground Lug
Frequency Rating:
60 Hertz
Hub Closing Plate:
Small Closing Plate
Insulation:
Glass Polyester
Line Side Wire Range:
6 - 2/0 AWG
Load Side Wire Range:
4 - 1/0 AWG
Main Breaker Size:
One 100 Ampere Main Breaker
Number Of Jaws:
4 Terminal
Number Of Main Breakers:
1
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
1 Phase
Product Family Code:
MMMD
Product Height:
28 IN
Product Length:
4.844 IN
Product Size:
4.844L x 13W x28H
Product Type:
Ringless Meter Socket
Standards:
UL Listed;Type 3R
Terminal:
Lay in
Unspsc Number:
39121102
Voltage Rating:
Up to 240 Volts Alternating Current
Product Material:
G90 Galvanized Steel with Powder Coat Finish
Product Mounting:
Surface Mount
Amps:
100
Product Width:
13 IN
Department:
Electrical
Product Subgroup:
Electrical
Product Group:
Metering & Service Entrance

Milbank U3741-XL-100-BL – Frequently Asked Questions

1) Will the Milbank U3741-XL-100-BL meter socket accept my 2/0 aluminum service entrance conductors?
Line side terminals on the U3741-XL-100-BL take 6 AWG through 2/0 AWG, so 2/0 lands at the top of the range. Load side is narrower at 4 AWG through 1/0 AWG. Both sides are lay-in terminals, so you drop the conductor in rather than fishing it through a barrel. Equipment ground is a 3 barrel ground lug.
2) Is this Milbank 100A ringless meter socket rated for a 120/240V single phase residential service?
Yes. It is a 1 phase, 4 terminal socket rated up to 240 volts AC at 60 Hertz, 100 continuous amperes, with one meter position. That is the standard single phase residential and light commercial service configuration. It will not serve a 3 phase or a 5 jaw network application.
3) Do I still need a separate main disconnect if I install this Milbank meter socket?
No. The U3741-XL-100-BL is a meter socket with main, carrying one 100 ampere main breaker inside the enclosure. That breaker is your service disconnect, so you can feed a downstream panel as a subpanel rather than buying a separate main breaker enclosure. There are no branch receptacles in it, so anything past the main goes to a separate panel.
4) Can the meter be pulled and swapped without killing power to the building?
Yes, that is what the lever bypass is for. Throwing the bypass lever carries the load around the meter jaws so the utility or a qualified electrician can pull and replace the meter with service still live to the premises. On occupied rental and multi-family properties that is the difference between a meter change and a tenant outage.
5) Is the Milbank U3741-XL-100-BL rated to mount outdoors on an exterior wall?
Yes. It is UL Listed and Type 3R, which is the outdoor rating for rain, sleet and ice. The enclosure is G90 galvanized steel with a powder coat finish, and it is surface mount, so it fastens flat to the exterior wall or a meter board rather than recessing into the framing.
6) Can I feed a 100 amp panel with 2 AWG copper off this meter main?
Watch the load side range: it is 4 AWG through 1/0 AWG. 2 AWG copper lands inside that window and terminates fine. If your design calls for 2/0 on the load side it will not fit these lugs, even though 2/0 is accepted on the line side, so you would need a socket with larger load terminals or a separate junction.
7) Will one Milbank U3741-XL-100-BL meter a duplex or two apartments?
No. It has one meter position and one 100 ampere main, so it serves a single metered service. Two dwelling units billed separately need two sockets or a multi-position (gang) meter stack. Where a property manager is standardizing individual meters across units, this is the single position building block, one per unit.
8) Can I use this Milbank socket on an underground service, or is it overhead only?
Either. Cable entry is rated for overhead or underground service. For an overhead drop the top hub opening is used and the unit ships with a small closing plate for the hub area; underground feeds come in from the bottom. The 3R enclosure covers both installations outdoors.
9) How much wall space do I need for this 100 amp Milbank meter socket?
Overall size is 4.844 long by 13 wide by 28 high in inches. Plan the 28 inch dimension vertically on the wall and allow the utility's required meter center height plus working clearance in front of the 4.844 inch depth.
10) What model do I put on the purchase order for the Milbank 100 amp ringless meter main with lever bypass?
Order Milbank part number U3741-XL-100-BL. That is the 100 amp, single phase, 4 jaw ringless socket with one 100 amp main breaker and lever bypass. The UNSPSC code for procurement systems is 39121102.
11) Is the interior insulated well enough for a coastal or wet outdoor location?
The jaw block insulation is glass polyester, which is the standard dielectric barrier material for socket bases, and the shell is G90 galvanized steel under powder coat for corrosion resistance. Combined with the Type 3R rating, it is built for permanent exterior mounting.
How fast can I get the Milbank U3741-XL-100-BL 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 U3741-XL-100-BL come with a warranty?
Absolutely. The Milbank U3741-XL-100-BL 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 U3741-XL-100-BL?
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 U3741-XL-100-BL from ZenSupply?
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