Milbank 320 Amp 1 Phase Ringle...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$752.33
Milbank 4 Terminal Ringless Meter Socket Large Hub Open Lever Bypass, 1 Position, 320 Ampere

Milbank 320 Amp 1 Phase Ringless Meter Socket with Lever Bypass - Surface Mount

(No reviews yet) Write a Review

Model: U1079-R-5T9

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

$752.33
Adding to cart… The item has been added
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Milbank 320 Amp 1 Phase Ringless Meter Socket with Lever Bypass - Surface Mount

Professional electrical metering solution with integrated bypass capability

The Milbank 320 Amp 1 Phase Ringless Meter Socket delivers reliable electrical metering with integrated lever bypass functionality for professional installations. Constructed with G90 galvanized steel and powder coat finish, this UL Listed Type 3R enclosure provides durable performance for overhead or underground cable entry applications. The surface mount design accommodates flexible wire ranges and bonded ground strap for comprehensive electrical safety.

Professional Features & Benefits

  • 320 Continuous Ampere Rating: Handles high-capacity electrical loads for demanding residential and commercial applications
  • Lever Bypass Provision: Enables safe meter maintenance and replacement without service interruption
  • Type 3R UL Listed Enclosure: Weather-resistant protection ensures reliable outdoor performance and code compliance
  • G90 Galvanized Steel Construction: Superior corrosion resistance with powder coat finish for extended service life
  • Flexible Cable Entry: Accommodates both overhead and underground installations for versatile project requirements
  • Bonded Ground Strap: Integrated equipment grounding provides enhanced electrical safety and system integrity
  • Glass Polyester Insulation: High-quality insulation materials ensure reliable electrical isolation and performance

Technical Specifications

  • Amperage Rating: 320 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: Lever Bypass
  • Cable Entry: Overhead or Underground
  • Departent: Electrical
  • Equipment Ground: Bonded Ground Strap
  • Frequency Rating: 60 Hertz
  • Insulation: Glass Polyester
  • Line Side Wire Range: 4 AWG - 600 kcmil or Two 1/0 AWG - 250 kcmil
  • Load Side Wire Range: Two 6 AWG - 350 kcmil
  • Main Breaker Size: No Main Breaker
  • Number Of Main Breakers: 0
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 1 Phase
  • Product Height: 38.75 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 x38.75H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 13 IN

Professional Applications

  • Residential Service Entrance Metering
  • Commercial Building Electrical Systems
  • Multi-Unit Property Installations
  • Industrial Facility Power Distribution
  • Utility Company Metering Requirements
  • Electrical Contractor Projects
  • Municipal and Government Facilities

Why Choose Milbank Quality?

Milbank delivers 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 bonded ground strap provide professional installation flexibility and enhanced safety for demanding electrical applications.

Manufacturer Resources

Product Specs

Amperage Rating:
320 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Lever Bypass
Cable Entry:
Overhead or Underground
Equipment Ground:
Bonded Ground Strap
Frequency Rating:
60 Hertz
Insulation:
Glass Polyester
Line Side Wire Range:
4 AWG - 600 kcmil or Two 1/0 AWG - 250 kcmil
Load Side Wire Range:
Two 6 AWG - 350 kcmil
Main Breaker Size:
No Main Breaker
Number Of Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
1 Phase
Product Height:
38.75 IN
Product Length:
4.844 IN
Product Size:
4.844L x 13W x38.75H
Product Type:
Ringless Meter Socket
Standards:
UL Listed;Type 3R
Unspsc Number:
39121102
Voltage Rating:
600 Volts Alternating Current
Product Material:
G90 Galvanized Steel with Powder Coat Finish
Product Mounting:
Surface Mount
Amps:
320
Product Width:
13 IN
Department:
Electrical
Product Subgroup:
Electrical
Insulation Type:
Glass Polyester
Installation Category:
Surface Mount
Number of Phases:
1
Product Details:
Ringless Meter Socket
Frequency:
60 hertz

Milbank U1079-R-5T9 – Frequently Asked Questions

1) Does the Milbank U1079 320 amp meter socket include a main breaker or disconnect?
No. The U1079 ringless socket is metering only, with no main breaker (the main breaker count is zero) and no receptacles. If the utility or the AHJ wants a service disconnect at the meter, you need a separate disconnect downstream or a meter-main combination unit instead of this socket.
2) Can the Milbank 320A ringless meter socket be mounted outdoors on an exterior wall?
Yes. It is a UL Listed Type 3R enclosure, which is the rain-tight rating used for outdoor service entrance equipment, and it is surface mount, so it fastens flat to the wall rather than recessing into it. The body is G90 galvanized steel with a powder coat finish.
3) What does the lever bypass do, and do I need it on a 320 amp service?
The lever bypass lets the meter be pulled and replaced while the service stays energized through the bypass, so the customer does not lose power for a meter swap. Many utilities require a bypass on 320 amp (class 320) sockets. Check your utility's approved meter socket list, since bypass type is a utility specification, not a code one.
4) Will this Milbank socket work for an underground service lateral, or is it overhead only?
Both. Cable entry is rated for overhead or underground. For an overhead drop you use the hub at the top; for underground you bring the lateral in through the bottom. The U1079-DTL version comes with a 2 inch hub already fitted, and the K3 hub-adapter versions handle 4 AWG to 600 kcmil through a small hub.
5) Which Milbank U1079 version do I order if my utility requires a 5th terminal for network metering?
Order U1079-R-5T9, the ringless version with the 5th terminal in the 9 o'clock position. The base U1079-R is a standard 4 terminal socket with no 5th jaw, so it will not satisfy a utility that specs 5th terminal metering. Confirm the clock position your utility wants, since 9 o'clock is one of several.
6) How much wall space do I need for the Milbank U1079 meter socket?
Plan on 4.844 x 13 x 38.75 inches overall, with 38.75 inches being the height. It is a tall, narrow can, so the constraint on most jobs is vertical clearance between the weatherhead and the meter height the utility requires, not width.
7) Is there a version of this Milbank meter socket with a utility lock provision?
Yes, two of them. U1079-R-BL adds a 9/16 inch barrel lock provision, which is what most utilities use to seal a ringless cover. U1079-RXL-K3-K2-IL combines a lock provision with the small hub adapter for 4-600 kcmil, a double load connector for 6-350 kcmil, and 7/16 inch knockouts.
8) Is this a single phase socket, and what voltage is it rated for?
Single phase, 60 hertz, rated 600 volts AC, with one meter position. That covers standard 120/240V single phase residential and light commercial service. It is not a three phase socket, so do not use it on a 208Y/120 or 480Y/277 three phase service.
9) Does the Milbank U1079 come with a grounding connection, or do I add a ground bar?
A bonded ground strap is built in, giving you the equipment grounding bond at the socket without adding a separate kit. Internal insulation is glass polyester.
How fast can I get the Milbank U1079-R-5T9 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 U1079-R-5T9 come with a warranty?
Absolutely. The Milbank U1079-R-5T9 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 U1079-R-5T9?
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 U1079-R-5T9 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!