Milbank 200A 1-Phase Ringless ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$476.43
Milbank U3278-RL 4 Terminal Ringless Small Hub Open Lever Bypass External Hex

Milbank 200A 1-Phase Ringless Meter Socket with Lever Bypass and External Hex

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Model: U3278-RL

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

$476.43
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Milbank 200A 1-Phase Ringless Meter Socket with Lever Bypass and External Hex

Professional Electrical Metering Solution with Integrated Bypass Capability

The Milbank 200A 1-Phase Ringless Meter Socket delivers reliable electrical metering with integrated lever bypass functionality for professional installations. Featuring a robust G90 galvanized steel construction with powder coat finish and Type 3R rating, this surface-mount meter socket accommodates both overhead and underground cable entry with 4-terminal configuration and triplex grounding for versatile electrical service applications.

Professional Features & Benefits

  • 200 Continuous Ampere Rating: Provides substantial capacity for residential and light commercial electrical service requirements
  • Lever Bypass Provision: Enables safe meter removal and replacement without service interruption for maintenance operations
  • Type 3R Enclosure Rating: Weather-resistant construction suitable for outdoor installations with protection against rain and sleet
  • G90 Galvanized Steel with Powder Coat: Corrosion-resistant materials ensure long-term durability in harsh environmental conditions
  • 4-Terminal Ringless Design: Simplifies installation with lay-in terminals accommodating 6 AWG to 350 kcmil wire range
  • UL Listed Certification: Meets rigorous safety standards for professional electrical installations and code compliance
  • Overhead/Underground Compatible: Flexible cable entry options accommodate various service entrance configurations

Technical Specifications

  • Amperage Rating: 200 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: Lever 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: 6 AWG - 350 kcmil
  • Load Side Wire Range: 6 AWG - 350 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: 4T20
  • Product Height: 15.5 IN
  • Product Length: 4.125 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 4.125L x 11W x15.5H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Lay in
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 11 IN

Professional Applications

  • Residential Electrical Service Entrance
  • Small Commercial Buildings
  • Multi-Unit Properties
  • Professional Offices
  • Retail Establishments
  • Light Industrial Facilities
  • Utility Metering Installations

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed certification and Type 3R weather-resistant construction. The G90 galvanized steel with powder coat finish ensures long-term durability, while the comprehensive wire range compatibility and triplex grounding provide professional-grade electrical metering solutions for demanding applications.

Manufacturer Resources

Product Specs

Amperage Rating:
200 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Lever 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:
6 AWG - 350 kcmil
Load Side Wire Range:
6 AWG - 350 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:
4T20
Product Height:
15.5 IN
Product Length:
4.125 IN
Product Size:
4.125L x 11W x15.5H
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:
200
Product Width:
11 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Product Group:
Power Distribution

Milbank U3278-RL – Frequently Asked Questions

1) Will the Milbank U3278-RL meter socket take 4/0 aluminum service entrance conductors?
Yes. Both line and load terminals on the U3278-RL accept 6 AWG through 350 kcmil, so 4/0 aluminum lands without adapters. The terminals are lay-in type, which means the conductor drops into the lug rather than being threaded through a hole, so the wire is easier to dress in a tight meter can.
2) Does this Milbank meter socket include a main breaker or disconnect?
No. The U3278-RL is a meter socket only, with zero main breakers and no receptacles. It has a lever bypass so the meter can be pulled without dropping the service, but the bypass is not a service disconnect. If your installation needs a service disconnect at the meter, you need a meter-main combination instead of this socket.
3) Is a 4-terminal ringless socket the right one for a 200A single phase residential service?
4 terminal, 1 phase, single meter position, 200 continuous amps at 600 VAC, 60 Hz. That is the standard configuration for a 120/240V single phase self-contained residential or light commercial service. If your utility requires a 5th terminal for the neutral landing or a ring-type cover, this is not the socket. Ringless means the cover slides over the socket and is retained by the hub/cover screw rather than a sealing ring, so confirm your utility accepts ringless.
4) Can the U3278-RL be used on an underground service, or is it overhead only?
Either. Cable entry is rated for overhead or underground. It ships with a small hub opening and closing plate, so for an overhead drop you fit a hub of the size your conduit calls for, and for an underground lateral you leave the closing plate in place and bring the conduit through the bottom per your utility's requirement. The hub itself is sized to your conduit and is a separate item.
5) What are the dimensions of the Milbank U3278-RL and how does it mount?
Surface mount, measuring 4.125 L x 11 W x 15.5 H inches. At 11 inches wide it fits between standard stud spacing on a wall or onto a meter pedestal backplate without modification. Plan the 4.125 inch depth into your clearance if it is going behind a gate or next to a corner.
6) Is this Milbank socket rated for outdoor wall mounting in rain?
Yes. The U3278-RL is UL Listed and carries a Type 3R enclosure rating, which covers outdoor exposure to rain, sleet and snow. The shell is G90 galvanized steel with a powder coat finish, and the internal insulation is glass polyester. Type 3R is not washdown or dust-tight, so it is a wall or pedestal socket, not an enclosure for a hose-down or heavy dust environment.
7) Why would I spec a lever bypass meter socket instead of a plain socket without bypass?
The lever bypass lets a meter be pulled and replaced without interrupting power to the building. On apartment buildings, medical offices and retail where a dark panel is a problem, that is the reason to pay for it. A socket with no bypass means the load drops every time the meter comes out. The U3278-RL also has an external hex operator, so the bypass is worked from outside the cover.
8) Does the U3278-RL have a provision for grounding the triplex service neutral?
It is configured with a triplex ground, which is the equipment ground arrangement for a standard overhead triplex drop on a 4 terminal single phase socket. For an installation using a separate grounding electrode conductor arrangement your utility specifies differently, verify the ground provision matches before you set the can.
9) What is the exact part number to order for this Milbank ringless lever bypass socket?
Milbank U3278-RL, in the 4T20 product family. One model covers the configuration, so there is nothing further to specify on the socket itself. Hubs are ordered separately to match your conduit size.
How fast can I get the Milbank U3278-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 U3278-RL come with a warranty?
Absolutely. The Milbank U3278-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 U3278-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
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