Milbank 320A 1-Phase Ringless ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$885.33
$639.65
Milbank U5073-X-K3L-K2L-LIS 5 Terminal Ringless Large Closing Plate Lever Bypass Single Connector Locking 4-600kcmil Double Connector Locking 6-350kcmil LISCO Approved

Milbank 320A 1-Phase Ringless Meter Socket with Lever Bypass and Large Closing Plate (5)

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Model: U5073-X-K3L-K2L-LIS

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

$885.33
$639.65
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Milbank 320A 1-Phase Ringless Meter Socket with Lever Bypass and Large Closing Plate

Professional electrical metering solution with LISCO approval

The Milbank 320A 1-Phase Ringless Meter Socket delivers reliable electrical metering performance with lever bypass functionality and large closing plate design. Constructed with G90 galvanized steel and powder coat finish for durability, this UL Listed Type 3R meter socket accommodates 4-600 kcmil line side connections and dual 6-350 kcmil load side connections. Featuring glass polyester insulation and ground lug equipment grounding, this surface mount unit provides versatile cable entry options for overhead, underground, and side wireway applications.

Professional Features & Benefits

  • 320 Continuous Ampere Rating: Handles substantial electrical loads for residential and commercial metering applications with reliable performance.
  • Lever Bypass Provision: Enables safe meter maintenance and replacement without interrupting electrical service to connected loads.
  • Large Closing Plate Design: Provides enhanced protection and professional appearance while accommodating various installation requirements.
  • Type 3R Enclosure Rating: Weather-resistant construction suitable for outdoor installations with protection against rain and sleet.
  • G90 Galvanized Steel Construction: Corrosion-resistant material with powder coat finish ensures long-term durability in demanding environments.
  • Flexible Wire Range Capacity: Accommodates 4 AWG to 600 kcmil line side and dual 6 AWG to 350 kcmil load side connections for versatile applications.
  • LISCO Approved: Meets Long Island Lighting Company specifications for utility compliance and professional installation standards.

Technical Specifications

  • Amperage Rating: 320 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: Lever Bypass
  • Cable Entry: Overhead and Underground and Side Wireway
  • Departent: Electrical
  • Equipment Ground: Ground Lug
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Large Closing Plate
  • 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 Jaws: 4 Terminal
  • Number Of Main Breakers: 0
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 1 Phase
  • Product Family Code: 4T32
  • Product Height: 31.5 IN
  • Product Length: 4.844 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 4.844L x 15W x31.5H
  • Product Type: Ringless Meter Socket
  • Special Features: Long Island Lighting Company
  • Standard: UL Listed;Type 3R
  • Terminal: Single Mechanical
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 15 IN

Professional Applications

  • Residential electrical service metering installations
  • Commercial building electrical distribution systems
  • Multi-unit residential properties and apartment complexes
  • Light industrial facilities requiring reliable metering
  • Utility company approved installations
  • Electrical contractor and professional electrician projects

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed Type 3R construction and LISCO approval for professional electrical installations. The G90 galvanized steel construction with powder coat finish ensures long-term durability, while the comprehensive wire range capacity and lever bypass provision provide the flexibility and safety features demanded by electrical professionals.

Manufacturer Resources

Product Specs

Amperage Rating:
320 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Lever Bypass
Cable Entry:
Overhead and Underground and Side Wireway
Equipment Ground:
Ground Lug
Frequency Rating:
60 Hertz
Hub Closing Plate:
Large Closing Plate
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 Jaws:
4 Terminal
Number Of Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
1 Phase
Product Family Code:
4T32
Product Height:
31.5 IN
Product Length:
4.844 IN
Product Size:
4.844L x 15W x31.5H
Product Type:
Ringless Meter Socket
Special Features:
Long Island Lighting Company
Standards:
UL Listed;Type 3R
Terminal:
Single Mechanical
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:
15 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Product Group:
Power Distribution

Milbank U5073-X-K3L-K2L-LIS – Frequently Asked Questions

1) Will the Milbank U5073-X-K3L-K2L-LIS meter socket be accepted for a service on Long Island?
It carries LISCO approval, meaning it is built to Long Island Lighting Company specifications. That is the deciding factor on a Long Island service change, since the utility will only seal a socket on its approved list. Outside that territory, check your own serving utility's accepted equipment list before ordering, because utility approval is territory specific.
2) Can I bring the service in overhead, or does it have to be underground?
Either works. Cable entry is provided for overhead, underground, and side wireway, so the same can handles a weatherhead drop, a lateral from a pad transformer, or a side gutter feed. It ships with a large closing plate covering the hub opening, so if you are going overhead you add the appropriate hub for your conduit size; leave the plate in place for underground bottom entry.
3) Is this Milbank socket suitable for a single phase 120/240 volt residential service?
Yes. It is a single phase, single meter position socket rated 600 volts AC at 60 Hz, which covers standard 120/240 volt single phase residential and small commercial services. For a three phase service you need a different socket entirely, and for more than one tenant meter you need a multi position or ganged unit.
4) Can this meter socket be mounted outdoors on an exterior wall?
Yes. The enclosure is UL Listed and rated Type 3R, so it is built for outdoor wall mounting with protection against rain and sleet. Construction is G90 galvanized steel with a powder coat finish, and it is a surface mount unit, so it fastens to the wall face rather than recessing into it.
5) How much wall space do I need for this Milbank 320A ringless meter socket?
The can measures 4.844 long by 15 wide by 31.5 inches high. That 31.5 inch height is the number to watch when you are fitting it under an existing weatherhead or between a window and grade, and the 15 inch width matters where it sits next to an existing panel or gas meter clearance.
6) What does lever bypass do on a meter socket, and do I need it?
Lever bypass lets the utility close a shorting bar across the jaws so the meter can be pulled and replaced without dropping power to the customer. Many utilities require bypass on 320 amp class residential and commercial services for exactly that reason, and it is the safer arrangement when the load cannot be interrupted, such as multi unit residential. If your utility does not require bypass, a non bypass socket is the simpler option, but a bypass socket will still be accepted where bypass is specified.
7) What is the difference between a ringless meter socket and a ring type one?
A ringless socket like the Milbank U5073-X-K3L-K2L-LIS uses a hinged or lift off cover that the utility seals directly, with no separate sealing ring around the meter. Ring type sockets use a locking ring around the meter rim instead. Utilities specify one or the other, and they are not interchangeable at inspection, so match whichever your serving utility requires. LISCO territory work is the intended application for this one.
8) Does this meter socket have a provision for the equipment grounding conductor?
A ground lug is provided in the can for the equipment grounding connection. Insulation is glass polyester, which is what carries the jaw assembly and separates it from the steel enclosure. Bonding of the neutral and the grounding electrode conductor routing still follow your utility's service requirements and local code.
How fast can I get the Milbank U5073-X-K3L-K2L-LIS 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 U5073-X-K3L-K2L-LIS come with a warranty?
Absolutely. The Milbank U5073-X-K3L-K2L-LIS 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 U5073-X-K3L-K2L-LIS?
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 U5073-X-K3L-K2L-LIS from ZenSupply?
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