Milbank 320A 1-Phase Ringless ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$887.16
Milbank U4912-X-K3-BLG 320A 1-Phase Ringless Meter Socket with Lever Bypass and Barrel Lock Provision

Milbank 320A 1-Phase Ringless Meter Socket with Lever Bypass and Barrel Lock Provision

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Model: U4912-X-K3-BLG

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

$887.16
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Milbank 320A 1-Phase Ringless Meter Socket with Lever Bypass and Barrel Lock Provision

Professional Underground Service Metering Solution

The Milbank 320A 1-Phase Ringless Meter Socket delivers reliable electrical metering for underground service applications. Featuring G90 galvanized steel construction with powder coat finish and Type 3R enclosure rating, this surface-mount meter socket provides 320 continuous ampere capacity with lever bypass functionality and integrated barrel lock provision for enhanced security and operational flexibility.

Professional Features & Benefits

  • 320 Continuous Ampere Rating: Handles high-capacity electrical loads for demanding residential and commercial applications with reliable performance.
  • Lever Bypass Provision: Enables safe meter maintenance and replacement without service interruption, improving operational efficiency.
  • Barrel Lock Security: 7/8 inch knockout and angle bracket provision allows secure meter protection against unauthorized access.
  • Type 3R Enclosure Rating: Weather-resistant construction protects internal components from outdoor environmental conditions.
  • G90 Galvanized Steel Construction: Durable material with powder coat finish ensures long-term corrosion resistance and structural integrity.
  • Underground Cable Entry: Designed specifically for underground service connections with appropriate wire range accommodation.
  • UL Listed Certification: Meets rigorous safety and performance standards for professional electrical installations.

Technical Specifications

  • Amperage Rating: 320 Continuous Ampere
  • Application: Meter Socket
  • Barrel Lock Provision: 7/8 Inch Knockout and Angle Bracket For Barrel Lock Provision
  • Brand Name: Milbank
  • Bypass Provision: Lever Bypass
  • Cable Entry: Underground
  • Departent: Electrical
  • Equipment Ground: 2 Barrel Ground Lug
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Large Closing Plate
  • Insulation: Glass Polyester
  • Line Side Wire Range: 4 AWG - 600 kcmil or Two 1/0 AWG - 250 kcmil
  • Load Side Wire Range: 4 AWG - 600 kcmil or Two 1/0 AWG - 250 kcmil
  • 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: 4T32
  • Product Height: 30 IN
  • Product Length: 5.75 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 5.75L x 16W x30H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Single Mechanical
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 16 IN

Professional Applications

  • Residential Underground Service Connections
  • Commercial Building Electrical Service
  • Multi-Unit Residential Properties
  • Professional Office Buildings
  • Retail and Light Commercial Facilities
  • Industrial Service Entrance Applications
  • Municipal and Utility Infrastructure

Why Choose Milbank Quality?

Milbank meter sockets provide proven reliability with UL Listed certification and Type 3R weather-resistant construction. The G90 galvanized steel material with powder coat finish ensures long-term durability, while the comprehensive wire range accommodation and professional mounting design deliver dependable performance for demanding electrical service applications.

Manufacturer Resources

Product Specs

Amperage Rating:
320 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Lever Bypass
Cable Entry:
Underground
Equipment Ground:
2 Barrel Ground Lug
Frequency Rating:
60 Hertz
Hub Closing Plate:
Large Closing Plate
Insulation:
Glass Polyester
Line Side Wire Range:
4 AWG - 600 kcmil or Two 1/0 AWG - 250 kcmil
Load Side Wire Range:
4 AWG - 600 kcmil or Two 1/0 AWG - 250 kcmil
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:
4T32
Product Height:
30 IN
Product Length:
5.75 IN
Product Size:
5.75L x 16W x30H
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:
320
Product Width:
16 IN
Department:
Electrical
Product Subgroup:
Electrical
Product Group:
Metering & Service Entrance

Milbank U4912-X-K3-BLG – Frequently Asked Questions

1) Does this 320A Milbank meter socket include a main breaker?
No main breaker. The 320A ringless socket is a meter-only can with one meter position and zero breakers or receptacles, so the service disconnect has to be a separate panel or breaker enclosure downstream. If you want meter and main in one enclosure, you are looking for a meter-main combination instead.
2) Is this a 4-jaw or 5-jaw meter socket, and will it work for 120/240V single phase?
Four terminal (4 jaw), single phase, 60 Hz, rated to 600 volts AC. That is the standard configuration for a 120/240V single phase residential or light commercial service. If your utility requires a 5th jaw for a network or three-phase meter, this is not the right can.
3) What does the lever bypass on this Milbank socket actually do for the meter tech?
The lever bypass lets the utility or electrician shunt current around the meter so the meter can be pulled and swapped while the service stays energized and the customer stays on. On a 320 amp continuous can feeding an occupied building, that is the difference between a meter change and an outage. Manual lever operation, built into the socket.
4) How much wall space do I need for this Milbank 320 amp meter can?
The enclosure measures 5.75 x 16 x 30 inches (30 inches high, 16 inches wide, 5.75 inches deep) and mounts to the surface. Lay out your meter height per the utility and leave room below for the underground conduit sweep and the working clearance in front.
5) Can this meter socket be installed outdoors?
Yes, it is a Type 3R enclosure and UL Listed, so it is rated for outdoor wall mounting against rain and sleet. The body is G90 galvanized steel with a powder coat finish for corrosion resistance, and the jaw bases are mounted on glass polyester insulation.
6) How does the utility lock a ringless meter socket like this one, and does it take a barrel lock?
Ringless means the cover itself is the security, pulled over the meter and secured rather than held by a sealing ring. This Milbank 320A socket comes with a 7/8 inch knockout and an angle bracket for a barrel lock, which is what most utilities specify for lockable meter enclosures. The barrel lock itself is supplied by the utility, not with the can.
7) Are there ground lugs in this Milbank socket for the grounding electrode and neutral bonding?
Two barrel ground lugs are provided for equipment grounding. Whether the neutral gets bonded in the meter can or downstream at the service disconnect is set by your utility and local inspector, since there is no main breaker in this enclosure.
How fast can I get the Milbank U4912-X-K3-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 U4912-X-K3-BLG come with a warranty?
Absolutely. The Milbank U4912-X-K3-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 U4912-X-K3-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 U4912-X-K3-BLG from ZenSupply?
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