Milbank 3-Phase Ringless Meter...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$698.23
Milbank UC7233–UC7237 Ringless Meter Socket - Small Hub Open and 1.25" Hub Configurations

Milbank 3-Phase Ringless Meter Socket 20A 600V with Auto Bypass and Dual Hub Configuration

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Model: UC7237-RL

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

$698.23
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Milbank 3-Phase Ringless Meter Socket 20A 600V with Auto Bypass and Dual Hub Configuration

Professional metering solution with versatile installation options

The Milbank 3-Phase Ringless Meter Socket delivers reliable electrical metering for commercial and industrial applications with 20 continuous ampere capacity at 600V AC. This single-position meter socket features G90 galvanized steel construction with powder coat finish for durability, auto bypass provision for service continuity, and flexible cable entry options supporting both overhead and underground installations.

Professional Features & Benefits

  • 20 Continuous Ampere Rating: Provides adequate capacity for medium-duty commercial metering applications with reliable current handling.
  • 3-Phase 600V AC Configuration: Supports industrial and commercial power systems with high-voltage capability for demanding applications.
  • Auto Bypass Provision: Enables service continuity during meter maintenance or replacement without power interruption to critical loads.
  • G90 Galvanized Steel with Powder Coat: Delivers superior corrosion resistance and long-term durability in harsh environmental conditions.
  • Dual Cable Entry Options: Accommodates both overhead and underground installations for maximum project flexibility and design versatility.
  • UL Listed Type 3R Rating: Ensures compliance with safety standards and provides protection against weather conditions for outdoor installations.
  • Glass Polyester Insulation: Offers excellent electrical isolation and thermal stability for safe, reliable operation in demanding environments.

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
  • 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 Main Breakers: 0
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 3 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
  • Standard: UL Listed;Type 3R
  • Terminal: Single Mechanical
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 8 IN

Professional Applications

  • Commercial Building Metering
  • Industrial Facility Power Monitoring
  • Multi-Tenant Properties
  • Manufacturing Operations
  • Retail and Office Buildings
  • Light Industrial Applications
  • Municipal and Government Facilities

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed Type 3R certification and robust G90 galvanized steel construction with powder coat finish. The professional-grade glass polyester insulation and single mechanical terminals ensure long-term performance and safety in demanding commercial and industrial metering applications.

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
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 Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
3 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
Installation Category:
Surface Mount
Terminal Type:
Single Mechanical
Number of Phases:
3
Product Details:
Ringless Meter Socket
Frequency:
60 hertz
Product Group:
Power Distribution

Milbank UC7237-RL – Frequently Asked Questions

1) Will a Milbank UC7233 ringless meter socket fit a 3-phase 600V service?
Yes. The Milbank UC72 series ringless socket is a single-position 3 phase unit rated 600 volts AC at 60 Hertz, so it suits commercial and light industrial 3-phase metering rather than residential single-phase service. Anything above 600V or a single-phase 4-jaw application needs a different socket entirely.
2) What is the difference between the 7, 8, and 13 terminal Milbank UC7233, UC7235, and UC7237 meter sockets?
Terminal count is the ordering decision on this Milbank ringless socket. The UC7233-RL is 7 terminal with a single cover, the UC7235-RL and UC7235-YL are 8 terminal, and the UC7237-RL is 13 terminal. Match the terminal count to what the serving utility specifies for the metering installation, because the jaw and terminal arrangement is what the meter and the CT wiring land on. Get that wrong and the utility will not set the meter.
3) Which Milbank UC72 meter socket do I order for overhead conduit versus underground service?
Cable entry is overhead or underground on the UC72 ringless socket, and the hub choice sorts it out. The UC7235-YL comes with a 1.25 inch hub for a conduit riser landing on top. The UC7235-RL and UC7237-RL come with a small hub opening, and the UC7233-RL is a single cover version. For an underground lateral coming up from below, the hub on top is not what you are feeding, so the open or plain cover versions are the ones to look at.
4) What size wire lands in a Milbank UC7235 meter socket?
Both line and load terminals on the Milbank UC72 ringless socket take 12 to 10 AWG copper or aluminum conductor range, on single mechanical terminals. That is a small conductor range, which fits the 20 continuous ampere rating of the socket. If you are pulling anything heavier than 10 AWG for a larger service, these lugs will not accept it and you need a higher ampere socket.
5) Can a 20 amp meter socket really be used on a large commercial service?
It can, because this is a transformer rated socket, family code CT20. The 20 continuous ampere rating is the meter circuit rating, not the service size. Current transformers out in the switchgear do the measuring and feed the socket through small control conductors, which is why the terminals only take 12 to 10 AWG. The service itself can be far larger. A self-contained socket, by contrast, carries the full load current and is sized to the service.
6) Can the Milbank UC72 meter socket be mounted outdoors?
Yes. The Milbank UC72 ringless socket is UL Listed and Type 3R rated, which covers outdoor rain and sleet exposure, and the enclosure is G90 galvanized steel with a powder coat finish for corrosion resistance. It is a surface mount unit, so it goes flat against a wall or a strut rack rather than flush into finished wall.
7) What does ringless mean on a Milbank meter socket, and will my utility accept it?
Ringless means the cover itself secures and seals the meter rather than a separate sealing ring clamping around the meter rim. Utilities specify one style or the other by territory, and they are not interchangeable in the field. Confirm the serving utility's meter specification calls for ringless before ordering, along with the terminal count they require, since the Milbank UC72 is offered in 7, 8, and 13 terminal versions.
8) How much wall space do I need for a Milbank UC7233 meter socket?
The Milbank UC72 ringless socket measures 3.313 long x 8 wide x 14 high inches. Plan the surface mount location with working clearance in front per code and enough room above for the conduit hub on the hub versions.
9) Does the Milbank UC72 meter socket include a main breaker or a place to land a ground?
No main breaker, and no breaker provision at all, on the Milbank UC72 ringless socket. It is metering only, so overcurrent protection has to come from separate gear ahead of or behind it. A ground lug is provided for the equipment grounding conductor. There are no receptacles in the enclosure either.
10) What insulation is used inside the Milbank UC72 meter socket?
Glass polyester carries the terminal assembly in the Milbank UC72 ringless socket. It holds up dielectrically and thermally at the 600 volt AC rating, which matters in an unconditioned outdoor Type 3R enclosure that cycles through heat and cold all year.
11) What UNSPSC code should I use to procure a Milbank UC72 meter socket?
UNSPSC 39121102 covers the Milbank UC72 ringless meter socket. That is the code to drop into a government, healthcare, or institutional purchasing system when the requisition needs a commodity classification.
How fast can I get the Milbank UC7237-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 UC7237-RL come with a warranty?
Absolutely. The Milbank UC7237-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 UC7237-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 UC7237-RL from ZenSupply?
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