Milbank 100A 1-Phase Ringless ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$418.56
Milbank U3499-RL 4 Terminal Ringless Small Hub Open Main Breaker Provision

Milbank 100A 1-Phase Ringless Meter Socket with Main Breaker Provision - 4 Terminal Surface Mount

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Model: U3499-RL

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

$418.56
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Milbank 100A 1-Phase Ringless Meter Socket with Main Breaker Provision - 4 Terminal Surface Mount

Professional electrical metering solution with main breaker provision capability

The Milbank 100A 1-Phase Ringless Meter Socket delivers reliable electrical metering with main breaker provision in a durable G90 galvanized steel construction with powder coat finish. This UL Listed Type 3R rated unit features 4 terminal lay-in connections, small hub opening design, and surface mount installation for versatile overhead or underground cable entry applications up to 240 volts AC.

Professional Features & Benefits

  • 100 Continuous Ampere Rating: Provides robust capacity for residential and light commercial electrical service applications with reliable current handling.
  • 1-Phase 240V AC Operation: Compatible with standard residential electrical systems delivering consistent power distribution and metering accuracy.
  • G90 Galvanized Steel Construction: Ensures long-lasting durability and corrosion resistance with professional powder coat finish for enhanced weather protection.
  • UL Listed Type 3R Rating: Meets rigorous safety standards for outdoor installation with protection against rain, sleet, and ice formation.
  • 4 Terminal Lay-In Design: Simplifies installation with accessible terminal connections and secure conductor placement for professional wiring practices.
  • Ringless Meter Socket Configuration: Eliminates the need for meter rings while maintaining secure meter retention and reliable electrical connections.
  • Main Breaker Provision Ready: Designed to accommodate main breaker installation for enhanced electrical protection and service disconnect capability.

Technical Specifications

  • Amperage Rating: 100 Continuous Ampere
  • Application: Meter Socket With Main
  • Brand Name: Milbank
  • Bypass Provision: No Bypass
  • Cable Entry: Overhead or Underground
  • Departent: Electrical
  • Equipment Ground: 3 Barrel Ground Lug
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Small Hub Opening
  • Insulation: Glass Polyester
  • 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: MTMN
  • Product Height: 22 IN
  • Product Length: 3.75 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 3.75L x 11W x22H
  • 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: 11 IN

Professional Applications

  • Residential Electrical Service Entrance
  • Small Commercial Metering Applications
  • Multi-Unit Property Electrical Distribution
  • Professional Office Buildings
  • Retail Establishment Power Metering
  • Light Industrial Electrical Service
  • Emergency Services Facility Power Distribution

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed certification and Type 3R weather protection rating. The robust G90 galvanized steel construction with powder coat finish ensures long-term durability, while the glass polyester insulation and 3 barrel ground lug provide enhanced safety and performance for professional electrical installations.

Manufacturer Resources

Product Specs

Amperage Rating:
100 Continuous Ampere
Application:
Meter Socket With Main
Brand Name:
Milbank
Bypass Provision:
No Bypass
Cable Entry:
Overhead or Underground
Equipment Ground:
3 Barrel Ground Lug
Frequency Rating:
60 Hertz
Hub Closing Plate:
Small Hub Opening
Insulation:
Glass Polyester
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:
MTMN
Product Height:
22 IN
Product Length:
3.75 IN
Product Size:
3.75L x 11W x22H
Product Type:
Meter Main Combination
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:
11 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Product Group:
Power Distribution

Milbank U3499-RL – Frequently Asked Questions

1) Does the Milbank U3499-RL meter socket come with a main breaker installed?
No. The U3499-RL is a provision-only enclosure: main breaker size is listed as No Main Breaker and the number of main breakers is 0. The can is built to accept a main breaker, but you buy and install the breaker separately. If you need a socket that ships with the disconnect already in it, order a meter-main combination instead.
2) Is a 4 terminal 100A ringless socket the right one for a standard 120/240V residential service?
Yes for single-phase 3-wire service. The U3499-RL is rated 1 phase, 60 Hz, up to 240 volts AC, 100 continuous amps, with 4 jaws, which is the standard self-contained single-phase residential meter configuration. For a three-phase or network service you need a different jaw count, not this socket.
3) Can the Milbank U3499-RL be used for an underground service lateral, or is it overhead only?
Both. Cable entry is rated overhead or underground, so the same can works for a service drop through the hub opening on top or for a lateral coming up from below. The hub closing plate is a small hub opening, so your overhead hub has to be sized for that opening.
4) Is this meter socket approved for outdoor mounting in rain and ice?
Yes. The U3499-RL carries a UL Listing and a Type 3R enclosure rating, which covers outdoor exposure to rain, sleet and ice. The shell is G90 galvanized steel with a powder coat finish for corrosion resistance, and the jaw insulation is glass polyester.
5) What is the difference between a ringless meter socket and a ring-type one, and which does my utility want?
A ringless socket like the U3499-RL uses a hinged or sliding cover that retains the meter directly, so no separate sealing ring is needed. A ring-type can has a smaller opening and uses a locking ring around the meter rim. They are not interchangeable, and which one you can install is set by your serving utility's meter specification, so confirm with the utility before ordering. The U3499-RL is the ringless version.
6) Does the Milbank U3499-RL have a meter bypass for pulling the meter under load?
No bypass. Bypass provision on the U3499-RL is listed as No Bypass, so the service has to be de-energized at the source to pull the meter. Utilities that require a lever or horn bypass for maintenance will not accept this can, so check their standard before you buy.
7) How much wall space do I need for this Milbank 100A ringless socket?
The enclosure measures 3.75L x 11W x 22H inches, so plan on roughly an 11 inch wide by 22 inch tall footprint with about 3-3/4 inches of projection off the wall. It is a surface mount can, so it bolts to the exterior wall rather than setting into it, and you still need working clearance in front per your local inspector.
8) How do I land the grounding and neutral conductors in this socket?
The can comes with a 3 barrel ground lug for equipment grounding and grounding electrode conductors. Line and load conductors terminate in lay-in type terminals, which means you set the stripped conductor into the open lug and tighten rather than threading it through a closed barrel.
9) Will this handle metering for more than one apartment or tenant?
No. The U3499-RL is a single position socket, one meter only, with no auxiliary receptacles. For a duplex, fourplex or small multi-family building you need a multi-position meter stack or ganged individual sockets, one per tenant.
How fast can I get the Milbank U3499-RL 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 U3499-RL come with a warranty?
Absolutely. The Milbank U3499-RL 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 U3499-RL?
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
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