Milbank 3-Phase Ringless Meter...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,302.95
Milbank UC4415-RL-WC-21 8 Terminal Ringless Small Hub Open With Cover Test Switch Prewired

Milbank 3-Phase Ringless Meter Socket 20A 600V 8-Terminal with Test Switch and Cover

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Model: UC4415-RL-WC-21

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

$1,302.95
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Milbank 3-Phase Ringless Meter Socket 20A 600V 8-Terminal with Test Switch and Cover

Professional 3-Phase Metering Solution with Integrated Test Switch

The Milbank 3-Phase Ringless Meter Socket delivers reliable 20 continuous ampere service at 600V AC for professional electrical installations. This single-position meter socket features durable G90 galvanized steel construction with powder coat finish and Type 3R enclosure rating for versatile indoor and outdoor applications. The integrated test switch and cover provide convenient testing capabilities while the 8-terminal configuration supports comprehensive 3-phase metering requirements.

Professional Features & Benefits

  • 20 Continuous Ampere Rating: Provides reliable service capacity for residential and light commercial 3-phase applications with consistent performance.
  • 600V AC 3-Phase Configuration: Supports standard commercial voltage requirements with professional-grade electrical specifications for versatile installations.
  • G90 Galvanized Steel with Powder Coat: Delivers superior corrosion resistance and long-term durability in demanding environmental conditions.
  • Type 3R Enclosure Rating: Ensures reliable protection against weather and environmental factors for both indoor and outdoor installations.
  • 8-Terminal Ringless Design: Provides comprehensive connection points for complete 3-phase metering with simplified installation and maintenance access.
  • Integrated Test Switch with Cover: Enables convenient testing and maintenance procedures while maintaining secure protection during normal operation.
  • UL Listed Certification: Meets rigorous safety and performance standards for professional electrical installations and code compliance.

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 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: 8 Terminal
  • Number Of Main Breakers: 0
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 3 Phase
  • Product Family Code: CT20
  • Product Height: 20 IN
  • Product Length: 5.063 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 5.063L x 12W x20H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Single Mechanical
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 12 IN

Professional Applications

  • Residential 3-Phase Service Connections
  • Light Commercial Metering Installations
  • Multi-Unit Properties
  • Professional Offices
  • Retail Establishments
  • Service Upgrade Projects
  • New Construction Electrical Systems

Why Choose Milbank Quality?

Milbank delivers proven reliability through UL Listed certification and Type 3R environmental protection. The robust G90 galvanized steel construction with powder coat finish ensures long-term performance in demanding conditions, while the comprehensive 8-terminal configuration provides professional-grade metering capabilities for critical electrical infrastructure applications.

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 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:
8 Terminal
Number Of Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
3 Phase
Product Family Code:
CT20
Product Height:
20 IN
Product Length:
5.063 IN
Product Size:
5.063L x 12W x20H
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:
12 IN
Department:
Electrical
Product Subgroup:
Electrical
Product Group:
Metering & Service Entrance

Milbank UC4415-RL-WC-21 – Frequently Asked Questions

1) Is the 20 amp rating on the Milbank UC4415-RL-WC-21 the service size, or something else?
That 20 amp continuous rating is the socket's own rating, not a 200A service socket. The UC4415-RL-WC-21 is a CT-rated metering socket (Milbank product family CT20) meant to be fed from instrument transformers, and both the line and load side terminals only accept 12 to 10 AWG. If you are terminating service-entrance conductors directly, this is the wrong enclosure entirely, you want a self-contained socket sized to the service.
2) Can this Milbank 8-terminal socket be mounted outdoors on the side of a building?
Yes. The UC4415-RL-WC-21 carries a Type 3R enclosure rating and is UL Listed, so it is rated for outdoor use, and it is a surface-mount can. The shell is G90 galvanized steel with a powder coat finish for corrosion resistance. Cable can come in overhead or underground.
3) Does the 8-terminal jaw configuration work for a 3-phase 4-wire meter?
Eight jaws is the standard transformer-rated 3-phase configuration, and this Milbank socket is built for 3-phase service at 600V AC, 60 Hz, single meter position. Utilities differ on which meter form they will set, so match the jaw count and form to what your serving utility specifies before the meter is ordered.
4) Can I pull the meter under load, or does this socket have a bypass?
No bypass on this one. The UC4415-RL-WC-21 is specified with no bypass provision, so there is no lever or horn bypass to keep power on the load while the meter is out. What it does have is a test switch with cover, which is what a meter tech uses on a CT-metered installation to short the CT secondaries and test or swap the meter safely. If your utility requires a bypass, you need a different socket.
5) Does this Milbank socket include a main breaker or disconnect?
No. It is a metering enclosure only, with zero main breakers and no receptacles. Your overcurrent protection and service disconnect are separate equipment that has to be ordered and installed alongside it.
6) What is the hub opening on the UC4415-RL-WC-21, and does it come closed?
It ships with a small hub opening and closing plate on top. Leave the plate in place for underground feeds, or remove it and fit the appropriate hub for an overhead service mast. The hub itself is sized to the small opening and is not part of the socket.
7) What does ringless mean on a Milbank meter socket, and does it change how the meter is secured?
Ringless means there is no sealing ring clamping the meter to the socket rim. Instead a hinged cover fits over the meter and is sealed by the utility. Utilities specify one style or the other, ringless versus ring-type, and they are not interchangeable in the field, so confirm which your utility accepts before setting this socket.
8) Is there a grounding lug in this meter socket, or do I have to add a ground bar?
A ground lug is included as the equipment ground provision, so you have a landing point for the equipment grounding conductor without adding a kit.
9) What insulation is used behind the jaws on this Milbank socket?
Glass polyester, with single mechanical terminals. That is the standard high-dielectric jaw base material for 600V class metering equipment, and it holds up to the heat and tracking exposure inside the can better than plain thermoplastic.
10) I need the exact part number for a purchase order on this Milbank CT meter socket.
Order it as Milbank UC4415-RL-WC-21. The UNSPSC code for procurement systems is 39121102.
How fast can I get the Milbank UC4415-RL-WC-21 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 UC4415-RL-WC-21 come with a warranty?
Absolutely. The Milbank UC4415-RL-WC-21 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 UC4415-RL-WC-21?
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 UC4415-RL-WC-21 from ZenSupply?
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