Milbank 6 Terminal Ringless Me...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$944.49
$929.64

Milbank 6 Terminal Ringless Meter Socket 20A 1 Phase 600V Outdoor Utility Grade Network Base

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Model: UC7478-O-81-NOE

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

$944.49
$929.64
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Milbank 6 Terminal Ringless Meter Socket 20A 1 Phase 600V Outdoor Utility Grade Network Base

Professional utility grade metering solution for outdoor electrical service applications

The Milbank 6 Terminal Ringless Meter Socket delivers reliable 20 continuous ampere service in a durable outdoor-rated enclosure. This 1 phase, 600V utility grade network meter base features G90 galvanized steel construction with powder coat finish and Type 3R rating for dependable outdoor performance. Designed specifically for Northeast Utility New England Area applications with single mechanical terminals and glass polyester insulation.

Professional Features & Benefits

  • 20 Continuous Ampere Rating: Provides reliable service capacity for residential and light commercial metering applications
  • 6 Terminal Ringless Design: Eliminates the need for ring terminals, simplifying installation and reducing connection points
  • Type 3R Outdoor Rating: Weather-resistant enclosure protects against rain, sleet, and ice formation for reliable outdoor operation
  • G90 Galvanized Steel Construction: Corrosion-resistant material with powder coat finish ensures long-term durability in harsh environments
  • 600V AC Rating: Accommodates standard utility voltage requirements with 60 Hz frequency compatibility
  • UL Listed Certification: Meets rigorous safety standards for professional electrical installations
  • Surface Mount Design: Enables straightforward installation on exterior walls and service panels

Technical Specifications

  • Amperage Rating: 20 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: No Bypass
  • Departent: Electrical
  • Equipment Ground: Ground Lug
  • Frequency Rating: 60 Hertz
  • Insulation: Glass Polyester
  • Line Side Wire Range: 12 - 10 AWG
  • Load Side Wire Range: 12 - 10 AWG
  • Main Breaker Size: No Main Breaker
  • Number Of Jaws: 6 Terminal
  • Number Of Main Breakers: 0
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 1 Phase
  • Product Family Code: CT20
  • Product Height: 20 IN
  • Product Length: 4.125 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 4.125L x 12W x20H
  • Product Type: Ringless Meter Socket
  • Special Features: Northeast Utility New England Area
  • Standard: UL Listed;Type 3R
  • Terminal: Single Mechanical
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 12 IN

Professional Applications

  • Residential electrical service metering
  • Small commercial and retail establishments
  • Multi-unit residential properties
  • Professional office buildings
  • Light industrial facilities
  • Northeast Utility service territories
  • New England area utility networks

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed certification and Type 3R outdoor rating. The G90 galvanized steel construction with powder coat finish provides exceptional corrosion resistance, while the glass polyester insulation ensures long-term electrical performance in demanding outdoor environments.

Manufacturer Resources

Product Specs

Amperage Rating:
20 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
No Bypass
Equipment Ground:
Ground Lug
Frequency Rating:
60 Hertz
Insulation:
Glass Polyester
Line Side Wire Range:
12 - 10 AWG
Load Side Wire Range:
12 - 10 AWG
Main Breaker Size:
No Main Breaker
Number Of Jaws:
6 Terminal
Number Of Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
1 Phase
Product Family Code:
CT20
Product Height:
20 IN
Product Length:
4.125 IN
Product Size:
4.125L x 12W x20H
Product Type:
Ringless Meter Socket
Special Features:
Northeast Utility New England Area
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:
20
Product Width:
12 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Insulation Type:
Glass Polyester
Installation Category:
Surface Mount
Terminal Type:
Single Mechanical
Number of Phases:
1
Product Details:
Ringless Meter Socket
Frequency:
60 hertz
Number of Terminations:
6
Product Group:
Power Distribution

Milbank UC7478-O-81-NOE – Frequently Asked Questions

1) Will a Milbank UC7478 meter socket fit a standard 20A network meter installation in New England utility territory?
The UC7478 is built specifically for Northeast Utility New England Area applications, and one of the two versions (MPN UC7478-O-81-NOE) is approved for that territory with a plain top standard enclosure. It's a 6 terminal ringless network meter base, 20 continuous ampere, 1 phase, 600V AC at 60 Hz. Utilities dictate which base they will accept on their system, so match the approval to the serving utility's approved equipment list before you set it.
2) What is the difference between the two UC7478 versions?
Two builds. UC7478-O-81-NOE is the plain top standard enclosure approved for the Northeast Utility New England Area. UC7478-XL comes with a small closing plate and a test switch provision, which is what you want when the utility or the design calls for a test switch to be landed at the socket. Electrically they are the same base: 20A, 1 phase, 600V, 6 terminal ringless.
3) What wire size can I land in this Milbank 20A meter socket?
Both line and load terminals take 12 to 10 AWG, using single mechanical terminals. That's a small-conductor CT-metering style base, not a service socket you can run 4/0 service entrance cable into. If you're pulling anything larger than 10 AWG through it, this is the wrong socket.
4) Does this Milbank ringless socket include a main breaker or a meter bypass?
No. The UC7478 is a straight meter base only: no main breaker, zero breaker positions, no bypass provision, and no receptacles. Overcurrent protection has to come from separate equipment downstream or upstream. A ground lug is provided for the equipment ground.
5) Is a 6 terminal socket the right choice, or do I need a 4 jaw or 7 jaw base?
Six terminals on a 1 phase base is a network/transformer-rated metering configuration, which is why the UC7478 is described as a network meter base and carries only 12 to 10 AWG terminals: the current goes through instrument transformers, not the socket. A standard self-contained single phase residential service uses a 4 jaw base and much larger conductors, and 7 jaw bases are for three phase self-contained metering. If the meter on your drawing is self-contained, do not use this one.
6) How much wall space do I need for this Milbank meter socket, and can it be mounted outdoors?
Plan for a footprint of 4.125L x 12W x 20H inches, surface mounted. The enclosure is Type 3R and UL Listed, so it is rated for outdoor exposure against rain, sleet and ice. Body is G90 galvanized steel with a powder coat finish for corrosion resistance.
7) How many meters can be fed from this Milbank base?
One. The UC7478 is a single position socket, so on a multi-unit property you need one base per metered service or a multi-position gang unit instead.
8) What does ringless mean on this Milbank socket, and does it need a sealing ring?
Ringless means the cover itself retains the meter, so no separate locking ring is needed to hold the meter in the socket. Fewer parts on the install and one less piece to lose on the truck. The UC7478 is a ringless design in both of its builds.
9) What is the insulation in the Milbank UC7478 socket and will it hold up outdoors?
The jaw insulation is glass polyester, a thermoset that resists tracking and holds its dielectric strength through outdoor temperature and humidity swings. Combined with the Type 3R galvanized steel enclosure, the base is intended for permanent exterior wall service.
How fast can I get the Milbank UC7478-O-81-NOE 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 UC7478-O-81-NOE come with a warranty?
Absolutely. The Milbank UC7478-O-81-NOE 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 UC7478-O-81-NOE?
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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