Milbank 7 Terminal Ringless Me...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$887.14
Milbank U2827-X 7 Terminal Ringless Large Closing Plate

Milbank 7 Terminal Ringless Meter Socket 320A 3 Phase with Large Closing Plate

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Model: U2827-X

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

$887.14
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Milbank 7 Terminal Ringless Meter Socket 320A 3 Phase with Large Closing Plate

Professional 3 Phase Metering Solution with Versatile Cable Entry Options

The Milbank 7 Terminal Ringless Meter Socket delivers reliable 320 continuous ampere service for 3 phase applications at 600 volts AC. Constructed with G90 galvanized steel and powder coat finish in a Type 3R enclosure, this surface mount meter socket features glass polyester insulation and accommodates overhead, underground, and side wireway cable entry configurations. The large closing plate design with 3/8 inch stud terminals provides professional installation flexibility for single position metering applications.

Professional Features & Benefits

  • 320 Continuous Ampere Rating: Handles substantial electrical loads for commercial and industrial 3 phase applications with reliable current capacity.
  • 7 Terminal Ringless Design: Provides secure electrical connections without ring terminals, simplifying installation and maintenance procedures.
  • Type 3R Enclosure Rating: Weather-resistant construction protects internal components from rain, sleet, and ice formation for outdoor installations.
  • G90 Galvanized Steel Construction: Durable material with powder coat finish ensures long-term corrosion resistance and structural integrity.
  • Versatile Cable Entry Options: Accommodates overhead, underground, and side wireway connections for flexible installation configurations.
  • Glass Polyester Insulation: High-quality insulation material provides excellent electrical isolation and thermal performance.
  • UL Listed Certification: Meets rigorous safety and performance standards for professional electrical installations.

Technical Specifications

  • Amperage Rating: 320 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: No 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
  • 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: 31.75 IN
  • Product Length: 6.5 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 6.5L x 17.75W x31.75H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: 3/8 Inch Stud
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 17.75 IN

Professional Applications

  • Commercial Building Electrical Service
  • Industrial Facility Power Distribution
  • Multi-Tenant Property Metering
  • Manufacturing Plant Electrical Systems
  • Retail and Office Complex Power Management
  • Municipal and Institutional Facilities
  • Heavy Duty 3 Phase Service Applications

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 glass polyester insulation provides superior electrical performance for demanding professional applications.

Manufacturer Resources

Product Specs

Amperage Rating:
320 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
No 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
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:
31.75 IN
Product Length:
6.5 IN
Product Size:
6.5L x 17.75W x31.75H
Product Type:
Ringless Meter Socket
Standards:
UL Listed;Type 3R
Terminal:
3/8 Inch Stud
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:
17.75 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Product Group:
Power Distribution

Milbank U2827-X – Frequently Asked Questions

1) Will a Milbank U2827-X 7 terminal socket work on a 3 phase 4 wire 208Y/120 service?
Yes. The U2827-X is a 7 jaw socket, which is the jaw configuration used for 3 phase 4 wire network metering, and it is rated 600 volts AC, 60 Hz, 3 phase. For a 3 phase 3 wire delta service you would need a 5 jaw socket instead, not this one.
2) Does the Milbank U2827-X meter socket come with a main breaker or bypass?
No. The U2827-X is a socket only: no main breaker, no bypass provision. Overcurrent protection has to be provided separately downstream, so plan on a service disconnect or panel adjacent to it. If the utility requires a lever bypass for 320A service, this is not the socket for that job.
3) How do the service conductors land in the Milbank U2827-X, and what lug size does it take?
Line and load connections are 3/8 inch stud terminals, so you land conductors with ring or compression lugs drilled for a 3/8 inch bolt rather than screw-type setscrew lugs. There is also a grounding stud for the equipment ground. Cable entry is available overhead, underground, or through a side wireway.
4) Is this Milbank meter socket rated for outdoor mounting on a building exterior?
Yes. It is a Type 3R enclosure, UL Listed, built from G90 galvanized steel with a powder coat finish, so it is intended for outdoor use against rain, sleet, and ice. It is surface mount, so it needs a flat wall or a backing board, not a flush pocket.
5) What does the large closing plate on the U2827-X mean for conduit entry at the top?
The socket ships with the large hub closing plate installed, covering the top hub opening. For an overhead service you remove that plate and fit the hub sized to your conduit; for underground or side wireway feeds you leave the plate in place to keep the Type 3R enclosure weathertight. The hub is ordered separately.
6) Can this 320A Milbank socket be used for 400 amp service?
It is rated 320 continuous amperes, which is the standard rating for what utilities commonly call 400 amp class residential or light commercial service (320A continuous / 400A intermittent). Treat the usable continuous load as 320A.
7) What wall space do I need to lay out for the Milbank U2827-X socket?
Allow 6.5 inches deep by 17.75 inches wide by 31.75 inches high. On a 320A installation you also need room beside or below it for the service disconnect, since the socket has no integral breaker.
8) Ringless versus ring type meter socket, which one does my utility want?
Ringless sockets like the Milbank U2827-X use a one-piece cover that slips over the meter and is sealed by the utility, with no separate sealing ring. Ring type sockets use a clamping ring around the meter rim. The two are not interchangeable in the field, and which one is accepted is set by your serving utility, so confirm their standard before ordering.
9) Can I meter two tenants from one Milbank U2827-X?
No. It is a single position socket with one set of 7 jaws, so it serves one meter and one service. Multi-tenant buildings need a multi-position meter stack or one socket per tenant.
10) What is the Milbank part number to quote for a 320A 3 phase 7 terminal ringless socket?
Milbank U2827-X, family code 7T32. That is the single orderable model: 7 terminal ringless, 320 continuous amp, 3 phase, 600V, with the large closing plate.
How fast can I get the Milbank U2827-X 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 U2827-X come with a warranty?
Absolutely. The Milbank U2827-X 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 U2827-X?
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 U2827-X from ZenSupply?
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