Milbank 5 Terminal Ringless Me...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$408.91
Milbank UC1290-RL 5 Terminal Ringless Small Hub Open

Milbank 5 Terminal Ringless Meter Socket 20A 1 Phase 600V with Auto Bypass

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Model: UC1290-RL

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

$408.91
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Milbank 5 Terminal Ringless Meter Socket 20A 1 Phase 600V with Auto Bypass

Professional single-phase metering solution with automatic bypass capability

The Milbank 5 Terminal Ringless Meter Socket delivers reliable single-phase electrical metering for residential and light commercial applications. This UL Listed Type 3R unit features a 20 continuous ampere rating at 600 volts alternating current with 1 phase configuration. Built with G90 galvanized steel construction and powder coat finish, this surface mount meter socket provides durable outdoor performance with small hub opening design and auto bypass provision for enhanced service flexibility.

Professional Features & Benefits

  • 20 Continuous Ampere Rating: Provides reliable current handling capacity for residential and light commercial single-phase electrical service applications.
  • 600V AC 1 Phase Configuration: Delivers standard voltage compatibility for typical residential electrical systems with single-phase power distribution.
  • Auto Bypass Provision: Enables continuous electrical service during meter maintenance or replacement without service interruption.
  • G90 Galvanized Steel with Powder Coat: Ensures long-lasting corrosion resistance and durability in outdoor installations and harsh weather conditions.
  • UL Listed Type 3R Rating: Meets professional safety standards for outdoor use with protection against rain, sleet, and ice formation.
  • 5 Terminal Ringless Design: Simplifies installation and maintenance with secure mechanical connections without requiring ring terminals.
  • Small Hub Opening: Accommodates standard conduit connections while maintaining compact installation footprint for space-efficient mounting.

Technical Specifications

  • Amperage Rating: 20 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: Auto Bypass
  • Cable Entry: Overhead or Underground
  • Departent: Electrical
  • Equipment Ground: Ground Lug
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Small Hub Opening
  • 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: 14 IN
  • Product Length: 3.313 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 3.313L x 8W x14H
  • 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: 8 IN

Professional Applications

  • Residential electrical service metering installations
  • Light commercial building electrical systems
  • Single-phase power distribution applications
  • Utility meter socket replacement projects
  • Overhead and underground service connections
  • Surface mount electrical service installations

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed Type 3R certification ensuring professional safety standards and weather protection. The G90 galvanized steel construction with powder coat finish provides long-term durability, while the glass polyester insulation and single mechanical terminals ensure secure, maintenance-friendly connections for years of dependable electrical service.

Manufacturer Resources

Product Specs

Amperage Rating:
20 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Auto Bypass
Cable Entry:
Overhead or Underground
Equipment Ground:
Ground Lug
Frequency Rating:
60 Hertz
Hub Closing Plate:
Small Hub Opening
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:
14 IN
Product Length:
3.313 IN
Product Size:
3.313L x 8W x14H
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:
20
Product Width:
8 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Insulation Type:
Glass Polyester
Hub Style:
Small Hub Opening
Installation Category:
Surface Mount
Terminal Type:
Single Mechanical
Number of Phases:
1
Frequency:
60 hertz
Product Details:
Ringless Meter Socket
Number of Terminations:
5
Product Group:
Power Distribution

Milbank UC1290-RL – Frequently Asked Questions

1) Will the Milbank UC1290-RL meter socket handle a 200 amp residential service?
No. The UC1290-RL is rated 20 continuous amperes, and its line and load side terminals only accept 12 to 10 AWG wire. That is instrument-transformer / CT-rated metering territory, not a 200A self-contained service entrance. For a 200A overhead or underground service you need a self-contained 200A socket with lugs sized for large conductors.
2) Can the Milbank UC1290-RL be mounted outdoors on an exterior wall?
Yes. It is UL Listed and rated Type 3R, which is the outdoor enclosure rating for rain, sleet and ice. The enclosure is G90 galvanized steel with a powder coat finish, and it is a surface mount unit, so it bolts flat to a wall or a meter pedestal backboard.
3) Does the UC1290-RL work for an underground service, or only overhead?
Either one. Cable entry is rated for overhead or underground, and the enclosure comes with a small hub opening for the conduit connection. For an underground lateral you bring conduit in and use the hub opening; overhead drops land the same way through the hub.
4) Does this Milbank socket include a main breaker or disconnect?
No. The UC1290-RL is a meter socket only, with no main breaker and no receptacles. The service disconnect and overcurrent protection have to be provided separately downstream, which is normal for a socket-only installation.
5) What does the auto bypass on this meter socket actually do for me?
The auto bypass keeps the circuit closed when the meter is pulled, so the load downstream stays energized while a meter is swapped or tested. On a tenant or facility feed where you cannot drop power for a meter change, that is the reason to spec the bypass version instead of a plain socket.
6) What is the difference between the UC1290-RL and the UC1290-RL-ALT?
Two ordering options exist: the standard UC1290-RL and the UC1290-RL-ALT, which is the Alliant Energy utility version. Electrically and dimensionally they are the same 20A, 5 terminal ringless socket. If you are building in Alliant Energy territory and their spec sheet calls out the approved socket, order the ALT part number so it passes utility inspection.
7) What is a 5 terminal ringless meter socket used for, and how is it different from a 4 jaw socket?
Five terminals means four meter jaws plus a fifth neutral/ground terminal position, which is what many utilities require for single phase metering. The UC1290-RL is single phase, 60 Hertz, rated 600 volts AC with one meter position. Ringless means the cover slides over the socket and is secured by the utility seal instead of a separate sealing ring, so there is no ring to order or lose. A 4 jaw socket has no fifth terminal and will not satisfy a utility that specs 5 terminal.
8) What are the dimensions of the UC1290-RL meter socket enclosure?
It measures 3.313 inches deep by 8 inches wide by 14 inches high, so it fits a narrow wall space or a tight spot beside existing gear. Confirm your utility's required clearance around the meter face before you set the mounting height.
9) Can I use this 600V socket on a 120/240V residential service?
Yes. The 600 volt AC rating is the maximum insulation rating of the socket, not a required system voltage, so it covers standard single phase 120/240V service at 60 Hertz. What limits the application is the 20 ampere continuous rating, not the voltage.
10) How does the equipment ground terminate in this meter socket?
A ground lug is provided for the equipment grounding conductor. Terminations throughout are single mechanical type, and the jaw assembly is mounted on glass polyester insulation.
How fast can I get the Milbank UC1290-RL 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 UC1290-RL come with a warranty?
Absolutely. The Milbank UC1290-RL 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 UC1290-RL?
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 UC1290-RL from ZenSupply?
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