Milbank 125A 1-Phase Ring Type...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,014.59
Milbank U5100 4 Terminal Ring Type Meter Socket - Small Closing Plate, Surface Mount

Milbank 125A 1-Phase Ring Type Meter Socket with Small Closing Plate Surface Mount

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Model: U5100-XL-11GR

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

$1,014.59
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Milbank 125A 1-Phase Ring Type Meter Socket with Small Closing Plate Surface Mount

Professional metering solution for RV power applications

The Milbank 125A 1-Phase Ring Type Meter Socket delivers reliable electrical metering for RV power applications with professional-grade construction. Featuring G90 galvanized steel with powder coat finish and glass polyester insulation, this surface mount unit provides durable performance with UL Listed Type 3R rating for outdoor installations. The 4 terminal ring type design accommodates 6 AWG to 350 kcmil wire range with lay-in terminals for secure connections.

Professional Features & Benefits

  • 125 Continuous Ampere Rating: Provides reliable power capacity for demanding RV electrical systems and applications.
  • 1-Phase 240V AC Operation: Compatible with standard residential and RV electrical configurations up to 240 volts alternating current.
  • G90 Galvanized Steel Construction: Delivers superior corrosion resistance and long-term durability in outdoor environments.
  • UL Listed Type 3R Rating: Ensures compliance with safety standards and protection against weather conditions for outdoor installations.
  • 4 Terminal Ring Type Design: Accommodates flexible wiring configurations with secure lay-in terminal connections.
  • 6 AWG to 350 kcmil Wire Range: Supports various conductor sizes for versatile installation requirements.
  • Surface Mount Installation: Simplifies mounting process with direct surface attachment capability.

Technical Specifications

  • Amperage Rating: 125 Continuous Ampere
  • Application: RV Power
  • Brand Name: Milbank
  • Bypass Provision: No Bypass
  • Cable Entry: Overhead or Underground
  • Departent: Electrical
  • Equipment Ground: Ground Bar
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Small Closing Plate
  • Insulation: Glass Polyester
  • Line Side Wire Range: 6 AWG - 350 kcmil
  • Number Of Jaws: 4 Terminal
  • Number Of Meter Positions: Single Power Head
  • Phase: 1 Phase
  • Product Family Code: POMT
  • Product Height: 25 IN
  • Product Length: 5.188 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 5.188L x 8.875W x25H
  • Product Type: Ring Type Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Lay in
  • Unspsc Number: 39121102
  • Voltage Rating: Up to 240 Volts Alternating Current
  • Width: 8.875 IN

Professional Applications

  • RV Parks and Campgrounds
  • Recreational Vehicle Service Centers
  • Mobile Home Communities
  • Temporary Power Installations
  • Outdoor Event Facilities
  • Construction Site Power Distribution
  • Marine and Dock Power Systems

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed certification and Type 3R weather protection rating. The G90 galvanized steel construction with powder coat finish ensures long-lasting performance in demanding outdoor environments, while the glass polyester insulation provides superior electrical protection for safe, dependable operation.

Manufacturer Resources

Product Specs

Amperage Rating:
125 Continuous Ampere
Application:
RV Power
Brand Name:
Milbank
Bypass Provision:
No Bypass
Cable Entry:
Overhead or Underground
Equipment Ground:
Ground Bar
Frequency Rating:
60 Hertz
Hub Closing Plate:
Small Closing Plate
Insulation:
Glass Polyester
Line Side Wire Range:
6 AWG - 350 kcmil
Number Of Jaws:
4 Terminal
Number Of Meter Positions:
Single Power Head
Phase:
1 Phase
Product Family Code:
POMT
Product Height:
25 IN
Product Length:
5.188 IN
Product Size:
5.188L x 8.875W x25H
Product Type:
Ring Type 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:
125
Product Width:
8.875 IN
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
Product Details:
Ring Type Meter Socket
Frequency:
60 hertz
Number of Terminations:
4
Product Group:
Power Distribution

Milbank U5100-XL-11GR – Frequently Asked Questions

1) Will 4/0 aluminum service conductors land in the Milbank U5100-XL meter socket?
Yes. The line side terminals take 6 AWG through 350 kcmil, so 4/0 is well inside the range. They are lay-in terminals, which means the conductor drops into the jaw and gets clamped rather than being pulled through a closed lug, and there is a ground bar for the equipment grounding conductor.
2) Can the Milbank U5100-XL be fed from an underground lateral, or is it overhead only?
Either. Cable entry is rated for overhead or underground, so the same socket works on an overhead drop or an underground feed. It ships with a small closing plate on the hub opening, so if you are coming in overhead with a raintight hub you remove that plate and fit the hub; underground feeds leave the plate in place and enter from below.
3) Is the Milbank U5100-XL meter socket rated for outdoor mounting at an RV park?
It is built for it. The enclosure is UL Listed and Type 3R, which is the rain and sleet rating used for outdoor service equipment, and the shell is G90 galvanized steel with a powder coat finish over glass polyester insulation. Application is RV power, which covers campground and mobile home site pedestals.
4) Will the 4 terminal Milbank U5100-XL socket be accepted by my utility, or do they require a ringless socket?
This is a ring type socket with 4 jaws, single position, single phase, rated up to 240 volts AC at 60 Hz and 125 amps continuous. Utilities specify either ring type or ringless and 4 jaw or 5 jaw, and they are not interchangeable. A 4 jaw ring type socket is the standard for single phase 120/240 volt residential and RV service in most territories, but if your utility's spec sheet calls for ringless or a 5 jaw socket for a network or three phase service, this is the wrong part.
5) What footprint do I need to plan for mounting the Milbank U5100-XL on a post or wall?
Overall size is 5.188 inches deep by 8.875 inches wide by 25 inches high. It is a surface mount unit, so it fastens directly to the mounting surface, and at 25 inches tall you need to set your meter centerline within the utility's required height window before you fix the backing.
6) Which Milbank U5100-XL version includes a light for the RV site?
Only U5100-XL-75-L. That build pairs a TT30 and a 1450 receptacle with a 520GR and adds the light kit. None of the other four builds include lighting.
How fast can I get the Milbank U5100-XL-11GR 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 U5100-XL-11GR come with a warranty?
Absolutely. The Milbank U5100-XL-11GR 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 U5100-XL-11GR?
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 U5100-XL-11GR from ZenSupply?
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