Milbank 320A 3-Phase Ringless ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,308.67
Milbank U4168-X-K7-BLG 7 Terminal Ringless Large Closing Plate Lever Bypass Single Connector 4-600kcmil with 7/8" Barrel Lock Provision

Milbank 320A 3-Phase Ringless Meter Socket with Lever Bypass and Large Closing Plate (2)

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Model: U4168-X-K7-BLG

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

$1,308.67
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Milbank 320A 3-Phase Ringless Meter Socket with Lever Bypass and Large Closing Plate

Professional Power Metering Solution with Advanced Bypass Capability

The Milbank 320A 3-Phase Ringless Meter Socket delivers reliable power metering and distribution for commercial and industrial applications. Featuring a robust 320 continuous ampere rating with 600V AC capacity, this single-position meter socket incorporates lever bypass functionality and a large closing plate design. Constructed with G90 galvanized steel and powder coat finish in a Type 3R enclosure, it provides durable performance for overhead, underground, and side wireway cable entry configurations.

Professional Features & Benefits

  • 320 Continuous Ampere Rating: Handles substantial electrical loads for commercial and industrial power distribution requirements.
  • 3-Phase 600V AC Configuration: Supports high-capacity three-phase electrical systems with professional-grade voltage handling.
  • Lever Bypass Provision: Enables safe meter maintenance and replacement without interrupting power service to critical loads.
  • Type 3R Enclosure Rating: Weather-resistant construction suitable for outdoor installations and harsh environmental conditions.
  • Ringless Design with 7 Terminal Configuration: Simplifies installation while providing comprehensive connection options for complex electrical systems.
  • G90 Galvanized Steel Construction: Corrosion-resistant material with powder coat finish ensures long-term durability and professional appearance.
  • UL Listed Certification: Meets rigorous safety standards for commercial and industrial electrical installations.

Technical Specifications

  • Amperage Rating: 320 Continuous Ampere
  • Application: Meter Socket
  • Barrel Lock Provision: 7/8 Inch Knockout and Angle Bracket For Barrel Lock Provision
  • Brand Name: Milbank
  • Bypass Provision: Lever Bypass
  • Cable Entry: Overhead and Underground and Side Wireway
  • Departent: Electrical
  • Equipment Ground: Grounding Stud
  • 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
  • Main Breaker Size: No Main Breaker
  • Number Of Jaws: 7 Terminal
  • Number Of Main Breakers: 0
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 3 Phase
  • Product Family Code: 7T32
  • Product Height: 34.125 IN
  • Product Length: 6.5 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 6.5L x 19W x34.125H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Single Mechanical
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 19 IN

Professional Applications

  • Commercial Building Power Distribution
  • Industrial Facility Metering
  • Multi-Tenant Properties
  • Manufacturing Plants
  • Retail and Office Complexes
  • Municipal and Government Facilities
  • Healthcare and Educational Institutions

Why Choose Milbank Quality?

Milbank delivers proven reliability through UL Listed certification and Type 3R weather-resistant construction. The G90 galvanized steel with powder coat finish provides exceptional corrosion resistance, while the comprehensive 7-terminal configuration and lever bypass capability ensure professional-grade performance 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 and Underground and Side Wireway
Equipment Ground:
Grounding Stud
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
Main Breaker Size:
No Main Breaker
Number Of Jaws:
7 Terminal
Number Of Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
3 Phase
Product Family Code:
7T32
Product Height:
34.125 IN
Product Length:
6.5 IN
Product Size:
6.5L x 19W x34.125H
Product Type:
Ringless Meter Socket
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:
19 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Product Group:
Power Distribution

Milbank U4168-X-K7-BLG – Frequently Asked Questions

1) Will a Milbank U4168-X-K7-BLG meter socket work on a 3-phase 4-wire 120/208V service?
The U4168-X-K7-BLG is a 7-jaw, 3-phase socket rated 600V AC at 60 Hz, which is the jaw configuration used for 3-phase 4-wire self-contained metering. It is a single meter position with no main breaker, so overcurrent protection has to come from separate gear downstream. Confirm the jaw count your utility specifies before ordering, since 3-phase 3-wire services typically call for a 5-jaw socket instead.
2) Can I mount this Milbank socket outdoors on an exterior wall?
Yes. It is a Type 3R rainproof enclosure in G90 galvanized steel with a powder coat finish, built for surface mounting on a wall or backboard. Plan the wall space around a footprint of 6.5 inches deep by 19 inches wide by 34.125 inches high.
3) Does a ringless meter socket need a different cover than a ring-type socket?
Yes, and the two are not interchangeable. A ringless socket uses a hinged or lift-off cover that the utility seals directly, rather than a sealing ring clamped around the meter rim. The U4168-X-K7-BLG is ringless with a large closing plate over the hub opening, so if your utility specifies ring-type, this socket will not pass inspection. Utility acceptance of ringless versus ring-type varies by service territory.
4) Can I feed this Milbank socket from underground, or is it overhead only?
Either. Cable entry is provisioned for overhead, underground, and side wireway, so the same socket handles a mast-fed overhead drop, a lateral coming up from below, or a side connection into adjacent gear. The large closing plate covers the top hub opening when you are not running an overhead hub through it.
5) Do I need to order a separate disconnect with this meter socket?
Yes. The U4168-X-K7-BLG is a meter socket only, with no main breaker and no receptacles. Service disconnecting means and overcurrent protection have to be provided by separate gear, typically a fused disconnect or main breaker panel downstream. If you want metering and main breaker in one can, you need a meter main combination instead of this socket.
6) What does the lever bypass do and why would I want it on a commercial meter socket?
The lever bypass lets a utility tech or electrician shunt current around the meter jaws so the meter can be pulled and swapped while the load stays energized. On a 320 amp commercial or industrial feed serving tenants, a manufacturing line, or a healthcare facility, that means meter changes and testing happen without dropping power. Horn bypass sockets require lifting jumpers by hand; the lever version is a single throw.
7) Is there a place to land the grounding electrode conductor in this Milbank socket?
A grounding stud is provided in the enclosure for the equipment ground connection. The jaw and bypass assembly is insulated with glass polyester, which is what carries the 600V rating on a socket this size.
8) Does this meter socket accept a utility barrel lock?
Yes. It ships with a 7/8 inch knockout and an angle bracket for a barrel lock provision, which is what most utilities require on a ringless can so the cover can be locked and sealed after the meter is set. You supply the barrel lock itself, or the utility does.
9) Can I meter two tenants off this one Milbank socket?
No. It is a single position socket, one meter, one service. Multi-tenant buildings that need separate billing per unit require a multi-position meter stack or multiple individual sockets. This one suits a single large 320 amp commercial service, such as one building, one plant feed, or a house panel.
How fast can I get the Milbank U4168-X-K7-BLG 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 U4168-X-K7-BLG come with a warranty?
Absolutely. The Milbank U4168-X-K7-BLG 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 U4168-X-K7-BLG?
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 U4168-X-K7-BLG from ZenSupply?
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