Milbank 4 Terminal Ringless Me...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$165.40
Milbank U4175-RL-BLG 4 Terminal Ringless Small Hub Open with 7/8" Barrel Lock Provision

Milbank 4 Terminal Ringless Meter Socket 100A 1 Phase with 7/8" Barrel Lock Provision

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Model: U4175-RL-BLG

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

$165.40
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Milbank 4 Terminal Ringless Meter Socket 100A 1 Phase with 7/8" Barrel Lock Provision

Professional single-phase metering solution with enhanced security features

The Milbank 4 Terminal Ringless Meter Socket delivers reliable 100 continuous ampere service for single-phase electrical metering applications. Featuring G90 galvanized steel construction with powder coat finish and Type 3R enclosure rating, this surface-mount meter socket provides durable performance for overhead or underground cable entry installations. The integrated 7/8" barrel lock provision with knockout and angle bracket enhances security while the small hub opening design accommodates versatile installation requirements.

Professional Features & Benefits

  • 100 Continuous Ampere Rating: Provides reliable service capacity for residential and light commercial single-phase electrical systems.
  • G90 Galvanized Steel with Powder Coat Finish: Delivers superior corrosion resistance and long-lasting durability in outdoor environments.
  • Type 3R Enclosure Rating: Ensures protection against rain, sleet, and ice formation for reliable outdoor installation performance.
  • 7/8" Barrel Lock Provision: Includes knockout and angle bracket for enhanced security and tamper resistance when required.
  • Overhead or Underground Cable Entry: Accommodates flexible installation methods for various service entrance configurations.
  • UL Listed Certification: Meets rigorous safety and performance standards for professional electrical installations.
  • Single Mechanical Terminal Design: Provides secure wire connections for 12-1/0 AWG conductors on both line and load sides.

Technical Specifications

  • Amperage Rating: 100 Continuous Ampere
  • Application: Meter Socket
  • Barrel Lock Provision: 7/8 Inch Knockout and Angle Bracket For Barrel Lock Provision
  • Brand Name: Milbank
  • Bypass Provision: No Bypass
  • Cable Entry: Overhead or Underground
  • Departent: Electrical
  • Equipment Ground: Triplex Ground
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Small Hub Opening
  • Insulation: Glass Polyester
  • Line Side Wire Range: 12 - 1/0 AWG
  • Load Side Wire Range: 12 - 1/0 AWG
  • Main Breaker Size: No Main Breaker
  • Number Of Jaws: 4 Terminal
  • Number Of Main Breakers: 0
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 1 Phase
  • Product Family Code: 4T12
  • Product Height: 11.5 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 x11.5H
  • 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

  • Residential Service Entrance Metering
  • Small Commercial Building Electrical Service
  • Multi-Unit Residential Properties
  • Professional Office Buildings
  • Retail Establishments
  • Light Industrial Facilities
  • Municipal and Institutional Buildings

Why Choose Milbank Quality?

Milbank meter sockets deliver proven reliability through UL Listed certification and Type 3R enclosure protection. The G90 galvanized steel construction with powder coat finish ensures long-term durability in demanding outdoor environments, while the glass polyester insulation and single mechanical terminal design provide secure, maintenance-free operation for professional electrical installations.

Manufacturer Resources

Product Specs

Amperage Rating:
100 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
No Bypass
Cable Entry:
Overhead or Underground
Equipment Ground:
Triplex Ground
Frequency Rating:
60 Hertz
Hub Closing Plate:
Small Hub Opening
Insulation:
Glass Polyester
Line Side Wire Range:
12 - 1/0 AWG
Load Side Wire Range:
12 - 1/0 AWG
Main Breaker Size:
No Main Breaker
Number Of Jaws:
4 Terminal
Number Of Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
1 Phase
Product Family Code:
4T12
Product Height:
11.5 IN
Product Length:
3.313 IN
Product Size:
3.313L x 8W x11.5H
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:
100
Product Width:
8 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Product Group:
Power Distribution

Milbank U4175-RL-BLG – Frequently Asked Questions

1) Will the Milbank U4175-RL-BLG meter socket work for a 200 amp residential service?
No. The U4175-RL-BLG is rated 100 continuous amperes, single phase, so it is sized for a 100A service only. Line and load terminals accept 12 to 1/0 AWG, which is the conductor range that goes with a 100A service, not the 2/0 to 4/0 aluminum typically pulled for 200A. For a 200A service you need a 200A-rated socket with correspondingly larger mechanical lugs.
2) Does this Milbank ringless socket have a main breaker or meter bypass in it?
Neither. The U4175-RL-BLG is a plain 4 terminal meter socket: no main breaker, no bypass provision, and no receptacles. Overcurrent protection has to come from a separate main breaker or main disconnect downstream, and if your utility requires a lever bypass for hot meter pulls, this is not the socket they will accept.
3) Is a 4 terminal meter socket right for 120/240V single phase, or do I need a 5 jaw?
Four jaws is the standard configuration for 120/240V single phase, three wire residential and light commercial metering, and that is what the U4175-RL-BLG provides, with one meter position at 60 Hz and a 600 VAC insulation rating. A 5 jaw socket is what utilities call for on network or certain three wire delta arrangements. Confirm the jaw count your serving utility specifies before you set the can.
4) Does the Milbank U4175-RL-BLG accept an overhead weatherhead feed or only underground?
Both. Cable entry is rated for overhead or underground service, and the can ships with a small hub opening closing plate up top, so you can fit the appropriate small hub for a mast and weatherhead or close it off and bring the lateral in from below.
5) What size conductors can I land in this 100A Milbank meter socket?
Line and load lugs both take 12 AWG through 1/0 AWG on single mechanical terminals, copper or aluminum in that range. Equipment grounding is by triplex ground. If your service conductors are larger than 1/0, this can is not the right one.
6) Can this meter socket be mounted outside on a house wall?
Yes, that is what it is built for. The enclosure is Type 3R rated for rain, sleet and ice, made from G90 galvanized steel with a powder coat finish, and it surface mounts to the wall. Overall size is 3.313L x 8W x 11.5H inches, so it takes up very little wall space on a service entrance.
7) What does the barrel lock provision on this ringless socket do, and is the lock included?
The U4175-RL-BLG comes with a 7/8 inch knockout and an angle bracket sized for a utility barrel lock, so the cover can be sealed against tampering once the meter is set. The provision is factory-built into the can; the barrel lock itself is normally supplied by the serving utility. Being a ringless design, the cover pulls over the socket rather than being held by a sealing ring.
8) Is the Milbank U4175-RL-BLG UL Listed for utility service entrance work?
It is UL Listed and carries a Type 3R enclosure rating, with glass polyester jaw insulation and a 600 VAC rating. Utilities maintain their own approved-socket lists, so match the model number U4175-RL-BLG against your utility's accepted meter socket schedule before installing.
9) I manage several rental units and want to standardize meter cans. Is this one socket per unit?
Yes, one meter position per can. The U4175-RL-BLG is a single-position 100A socket, so a multi-unit building would need one per tenant plus separate disconnects, since there is no main breaker in the can. Where you want several meters in one enclosure, a multi-position meter pack is the correct product instead.
How fast can I get the Milbank U4175-RL-BLG 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 U4175-RL-BLG come with a warranty?
Absolutely. The Milbank U4175-RL-BLG 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 U4175-RL-BLG?
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 U4175-RL-BLG from ZenSupply?
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