Milbank 7 Terminal Ringless Me...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$601.27
Milbank U7573-RL 7 Terminal Ringless Meter Socket 125A 3 Phase with Lever Bypass

Milbank 7 Terminal Ringless Meter Socket 125A 3 Phase with Lever Bypass

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Model: U7573-RL

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

$601.27
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Milbank 7 Terminal Ringless Meter Socket 125A 3 Phase with Lever Bypass

Professional 3-Phase Metering Solution with Integrated Bypass

The Milbank 7 Terminal Ringless Meter Socket delivers reliable 125A continuous amperage service for 3-phase electrical metering applications. Featuring G90 galvanized steel construction with powder coat finish and Type 3R enclosure rating, this surface-mount meter socket provides professional-grade durability for overhead cable entry installations. The integrated lever bypass provision ensures convenient maintenance access while maintaining system reliability.

Professional Features & Benefits

  • 125A Continuous Rating: Handles demanding 3-phase electrical loads with reliable amperage capacity for commercial and industrial applications.
  • 7 Terminal Ringless Design: Provides secure meter connections without ring terminals, simplifying installation and maintenance procedures.
  • Lever Bypass Provision: Enables safe meter removal and replacement without interrupting power service to critical loads.
  • Type 3R Enclosure: Weather-resistant construction protects internal components from outdoor environmental conditions.
  • G90 Galvanized Steel: Corrosion-resistant material with powder coat finish ensures long-term durability and professional appearance.
  • 600V AC Rating: Compatible with standard commercial voltage systems for versatile installation applications.
  • UL Listed: Meets rigorous safety and performance standards for professional electrical installations.

Technical Specifications

  • Amperage Rating: 125 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: Lever Bypass
  • Cable Entry: Overhead
  • Departent: Electrical
  • Equipment Ground: Grounding Stud
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Small Hub Opening
  • Insulation: Glass Polyester
  • Line Side Wire Range: 6 - 2/0 AWG
  • Load Side Wire Range: 6 - 2/0 AWG
  • Main Breaker Size: No Main Breaker
  • Number Of Jaws: 7 Terminal
  • Number Of Main Breakers: 0
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 3 Phase
  • Product Family Code: MD7T
  • Product Height: 18.5 IN
  • Product Length: 4.844 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 4.844L x 10W x18.5H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Lay in
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 10 IN

Professional Applications

  • Commercial Building Electrical Service
  • Industrial Facility Metering
  • Multi-Tenant Properties
  • Retail and Office Buildings
  • Manufacturing Facilities
  • Institutional Buildings
  • Municipal and Government Facilities

Why Choose Milbank Quality?

Milbank delivers proven reliability through UL Listed construction and Type 3R weather-resistant design. The G90 galvanized steel with powder coat finish provides long-term durability, while the glass polyester insulation ensures safe operation. Professional contractors trust Milbank for consistent performance in demanding electrical service applications.

Manufacturer Resources

Product Specs

Amperage Rating:
125 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Lever Bypass
Cable Entry:
Overhead
Equipment Ground:
Grounding Stud
Frequency Rating:
60 Hertz
Hub Closing Plate:
Small Hub Opening
Insulation:
Glass Polyester
Line Side Wire Range:
6 - 2/0 AWG
Load Side Wire Range:
6 - 2/0 AWG
Main Breaker Size:
No Main Breaker
Number Of Jaws:
7 Terminal
Number Of Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
3 Phase
Product Family Code:
MD7T
Product Height:
18.5 IN
Product Length:
4.844 IN
Product Size:
4.844L x 10W x18.5H
Product Type:
Ringless Meter Socket
Standards:
UL Listed;Type 3R
Terminal:
Lay in
Unspsc Number:
39121102
Voltage Rating:
600 Volts Alternating Current
Product Material:
G90 Galvanized Steel with Powder Coat Finish
Product Mounting:
Surface Mount
Amps:
125
Product Width:
10 IN
Department:
Electrical
Product Subgroup:
Electrical

Milbank U7573-RL – Frequently Asked Questions

1) Will a Milbank U7573-RL meter socket work on a 3 phase 4 wire service?
The U7573-RL is a 7 jaw socket, which is the 3 phase 4 wire configuration. It is rated 125A continuous at 600VAC, 60 Hz, single meter position. If your service is 3 phase 3 wire, you want a 5 jaw socket instead, and a residential single phase service takes a 4 jaw. Count the jaws in the existing socket or check with the utility before you order, because the jaw count has to match the utility's meter.
2) Does the Milbank U7573-RL 125A meter socket include a main breaker or disconnect?
No breaker in it. The U7573-RL is a socket only, zero main breakers, one meter position and no receptacles. Line lands on the top lugs, load leaves on the bottom lugs, and your overcurrent protection has to be a separate panel or disconnect downstream. If your utility or inspector wants the disconnect in the same can, you need a meter main combination, not this unit.
3) What size conductors will land in a Milbank U7573-RL meter socket?
Both line and load terminals take 6 AWG through 2/0 AWG, and they are lay in terminals, so you drop the conductor into the jaw and torque it rather than fishing it through a hole. Practically that means copper or aluminum feeders sized for a 125A service land fine. Anything larger than 2/0 will not fit and you are into a bigger socket.
4) What does the lever bypass on a Milbank meter socket actually do for me?
The lever bypass lets you throw a handle that shunts current around the meter jaws so the meter can be pulled and swapped without dropping power to the load. On a tenant space, a clinic, or anything with refrigeration or servers behind it, that is the difference between a meter change and an outage. Sockets without a bypass require the utility to kill the service to pull the meter. The U7573-RL carries the lever style, which is the type most utilities specify for 3 phase commercial work.
5) What is the difference between a ringless meter socket and a ring type, and which one do I order?
A ringless socket like the U7573-RL uses a lift off cover that the utility seals directly, with no locking ring around the meter rim. A ring type uses a sealing ring to hold the meter in place. Neither is interchangeable in the field, and the choice is not yours: the serving utility specifies which style they accept in their service handbook. Call the utility with the address before ordering, because a ringless socket in a ring type territory will not pass the meter set.
6) Can the Milbank U7573-RL be used with an underground service lateral?
It is built for overhead cable entry, with a small hub opening closing plate at the top for a weatherhead mast. You can bring conduit into a 3R socket from below in many jurisdictions, but the hub provision on this unit is sized and located for overhead. For a true underground lateral where the utility specifies a bottom or side lateral socket, order the lateral version rather than adapting this one.
7) Is the Milbank U7573-RL rated to be mounted outdoors?
Yes, it is a Type 3R enclosure and UL Listed, so it is rated for outdoor wall mounting against rain and sleet. The shell is G90 galvanized steel with a powder coat finish, with glass polyester insulating the jaw block. Type 3R is not a washdown or dust tight rating, so a corrosive or high pressure spray environment calls for a different enclosure type.
8) Can I use the U7573-RL 125A socket on a 480V 3 phase service?
The socket is rated 600VAC, so 480Y/277 and 208Y/120 3 phase systems are both inside its voltage rating, at 60 Hz. The 125A continuous rating is the real limit to watch, not the voltage. Bear in mind that a 480V service is typically transformer rated metering above a certain size, so confirm with the utility that they want a self contained 125A socket at that voltage.
9) What is the exact Milbank part number for the 125A 7 jaw ringless socket with lever bypass?
Order Milbank U7573-RL. It sits in the MD7T product family, 7 terminal, 125A, 3 phase, ringless, lever bypass, overhead, single position. The UNSPSC for procurement systems is 39121102.
10) Can I meter two tenants off one Milbank U7573-RL?
No. It is a single position socket with one set of 7 jaws, so one meter, one tenant. Multi tenant buildings need a meter stack or a multi position socket sized for the number of units, with a separate main for each. Using one socket per tenant is fine, but they cannot share this can.
11) Is there a ground provision in the Milbank U7573-RL or do I need to add a ground bar?
There is a grounding stud in the enclosure for bonding the equipment ground. If your installation needs a full neutral or ground bar with multiple terminations for grounding electrode conductors and equipment grounds, that is a separate kit, since the stud is a single bonding point.
How fast can I get the Milbank U7573-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 U7573-RL come with a warranty?
Absolutely. The Milbank U7573-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 U7573-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 U7573-RL from ZenSupply?
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