Milbank 5 Terminal Ringless Me...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$881.43
Milbank UC7446-XL-121-ALT 5 Terminal Ringless Small Closing Plate Test Switch Prewired Alliant Energy

Milbank 5 Terminal Ringless Meter Socket with Small Closing Plate Test Switch 20A 1 Phase Prewired Alliant Energy

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Model: UC7446-XL-121-ALT

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

$881.43
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Milbank 5 Terminal Ringless Meter Socket with Small Closing Plate Test Switch 20A 1 Phase Prewired Alliant Energy

Professional meter socket solution with integrated test switch functionality

The Milbank 5 Terminal Ringless Meter Socket delivers reliable electrical metering performance with 20 Continuous Ampere rating and 1 Phase 600V AC capability. Featuring G90 Galvanized Steel with Powder Coat Finish construction and UL Listed Type 3R rating, this surface mount meter socket provides durable outdoor protection. The integrated small closing plate test switch and prewired Alliant Energy configuration ensure professional installation efficiency and utility compliance.

Professional Features & Benefits

  • 20 Continuous Ampere Rating: Provides reliable current handling capacity for residential and light commercial metering applications
  • 5 Terminal Ringless Design: Eliminates ring terminals for simplified meter installation and enhanced connection reliability
  • G90 Galvanized Steel Construction: Delivers superior corrosion resistance and long-term durability in outdoor environments
  • UL Listed Type 3R Rating: Ensures code compliance and weather protection for outdoor installations
  • Small Closing Plate Test Switch: Enables safe meter testing and maintenance without service interruption
  • Prewired Alliant Energy Configuration: Reduces installation time with utility-specific wiring preparation
  • Surface Mount Design: Simplifies installation on various mounting surfaces with proper clearance access

Technical Specifications

  • Amperage Rating: 20 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: No Bypass
  • Cable Entry: Overhead or Underground
  • Departent: Electrical
  • Equipment Ground: Ground Lug
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Small Closing Plate
  • 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: 5 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: Alliant Energy
  • 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 Building Metering
  • Multi-Unit Property Electrical Service
  • Utility Service Entrance Applications
  • Electrical Contractor Installations
  • Building Code Compliance Projects

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed certification and Type 3R weather protection rating. The G90 Galvanized Steel construction with powder coat finish ensures long-term durability and corrosion resistance for professional electrical installations requiring dependable metering performance.

Manufacturer Resources

Product Specs

Amperage Rating:
20 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
No Bypass
Cable Entry:
Overhead or Underground
Equipment Ground:
Ground Lug
Frequency Rating:
60 Hertz
Hub Closing Plate:
Small Closing Plate
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:
5 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:
Alliant Energy
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
Product Group:
Power Distribution

Milbank UC7446-XL-121-ALT – Frequently Asked Questions

1) Is the Milbank UC7446-XL-121-ALT meter socket accepted by Alliant Energy, or do I need their approved version?
The UC7446-XL-121-ALT comes prewired to the Alliant Energy configuration, so it is built for utility service in that territory rather than needing field rewiring. Utility acceptance lists change, so confirm with your local Alliant service planner for the specific service address, but the wiring arrangement and the small closing plate test switch are the Alliant-spec build.
2) Will a 5 terminal meter socket work on a 120/240V single phase residential service?
Yes. The 5 terminal (5 jaw) ringless socket is a single phase, single meter position device rated to 600V AC at 60 Hz, which covers a standard 120/240V single phase service. The fifth jaw is the neutral/current-transformer terminal arrangement used for utility transformer-rated metering rather than a second phase, so do not use it on a three phase service.
3) Does a 20 amp rating mean this socket only handles a 20 amp service?
The 20 continuous ampere rating is the socket's own wiring rating, not the size of the service it meters. This is a CT-type cabinet (Milbank family code CT20) used with current transformers, so the line and load conductors passing through it are the small CT secondary leads, 12 to 10 AWG on both line and load sides. The actual service can be far larger because the current transformers do the stepping down. If you need a socket that carries full service current directly, you want a self-contained 100A, 200A or 320A socket instead.
4) Will this socket work with underground service, or is it overhead only?
Either. Cable entry is rated for overhead or underground service. The hub opening ships with a small closing plate, so for an overhead drop you will need to add the appropriate hub for your conduit size; underground installations can leave the plate in place and bring conduit in from below.
5) Does this Milbank socket include a main breaker or a meter bypass?
No on both counts. It has no main breaker and no bypass provision, so it is a meter socket only. Overcurrent protection has to come from a separate disconnect or panel, and because there is no bypass the meter cannot be pulled without interrupting metering. The small closing plate test switch is what allows safe meter testing. There are also no receptacles in the enclosure.
6) What size wall space do I need for this Milbank ringless meter socket?
The enclosure measures 4.125 inches deep (length) by 12 inches wide by 20 inches high and mounts to the surface. Plan the footprint plus working clearance in front of the meter and keep the meter center at the height your utility requires.
7) Can this meter socket be installed outdoors?
Yes. It is UL Listed with a Type 3R enclosure rating for outdoor rain and sleet exposure, built from G90 galvanized steel with a powder coat finish for corrosion resistance. Glass polyester insulation carries the terminal assembly.
8) Ringless versus ring-type meter socket, which one do I order?
It is dictated by your utility, not by preference. A ringless socket uses a hinged or lift-off cover that the utility seals, with no separate sealing ring around the meter. This Milbank unit is the ringless style with single mechanical terminals. If your utility specifies a ring-type socket, a ringless cover will not accept their sealing ring and the inspection will fail, so order to the utility's standard.
9) Can I meter two units or apartments from one of these?
No. It is a single meter position socket, so one socket serves one metered account. For a multi-unit property you need a multi-position meter stack or one socket per tenant.
10) How is the equipment ground terminated in this enclosure?
A ground lug is provided in the enclosure for the equipment grounding conductor. Bonding and grounding-electrode connections still have to follow your local utility and NEC service-entrance requirements.
How fast can I get the Milbank UC7446-XL-121-ALT 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 UC7446-XL-121-ALT come with a warranty?
Absolutely. The Milbank UC7446-XL-121-ALT 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 UC7446-XL-121-ALT?
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 UC7446-XL-121-ALT from ZenSupply?
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