Milbank 200A 3-Phase Ringless ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,363.70
Milbank U4184 200A Ringless Meter Sockets - Lever Bypass, 7-Terminal Configurations

Milbank 200A 3-Phase Ringless Meter Socket with Lever Bypass - 7-Terminal Configuration

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Model: U4184-O

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

$1,363.70
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Milbank 200A 3-Phase Ringless Meter Socket with Lever Bypass - 7-Terminal Configuration

Professional electrical metering solution with versatile installation options

The Milbank 200A 3-Phase Ringless Meter Socket delivers reliable electrical metering with lever bypass functionality for professional installations. Featuring a robust G90 galvanized steel construction with powder coat finish and Type 3R rating, this single-position meter socket accommodates 6 AWG to 350 kcmil conductors on both line and load sides. The 7-terminal configuration with glass polyester insulation provides secure connections for 3-phase 600V AC applications with convenient overhead, underground, and side wireway cable entry options.

Professional Features & Benefits

  • 200A Continuous Rating: Handles substantial electrical loads for commercial and industrial metering applications with reliable performance.
  • Lever Bypass Provision: Enables safe meter removal and replacement without interrupting power service to critical loads.
  • 7-Terminal Configuration: Provides comprehensive connection points for complex 3-phase electrical systems with proper grounding.
  • Type 3R Enclosure: Weather-resistant construction protects internal components from rain, sleet, and ice formation in outdoor installations.
  • G90 Galvanized Steel Construction: Durable material with powder coat finish ensures long-term corrosion resistance and structural integrity.
  • Versatile Cable Entry: Accommodates overhead, underground, and side wireway connections for flexible installation configurations.
  • UL Listed: Meets rigorous safety standards for professional electrical installations and code compliance.

Technical Specifications

  • Amperage Rating: 200 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: Lever Bypass
  • Cable Entry: Overhead and Underground and Side Wireway
  • Departent: Electrical
  • Equipment Ground: Ground Lug
  • Frequency Rating: 60 Hertz
  • 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: 7 Terminal
  • Number Of Main Breakers: 0
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 3 Phase
  • Product Family Code: HD7T
  • Product Height: 19.25 IN
  • Product Length: 6 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 6L x 18W x19.25H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Lay in
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 18 IN

Professional Applications

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

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed safety certification and Type 3R weather protection. The robust G90 galvanized steel construction with powder coat finish ensures long-term durability in demanding electrical service applications, while the comprehensive 7-terminal configuration provides professional-grade connectivity for complex 3-phase systems.

Manufacturer Resources

Product Specs

Amperage Rating:
200 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Lever Bypass
Cable Entry:
Overhead and Underground and Side Wireway
Equipment Ground:
Ground Lug
Frequency Rating:
60 Hertz
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:
7 Terminal
Number Of Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
3 Phase
Product Family Code:
HD7T
Product Height:
19.25 IN
Product Length:
6 IN
Product Size:
6L x 18W x19.25H
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:
18 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Insulation Type:
Glass Polyester
Installation Category:
Surface Mount
Terminal Type:
Lay In
Number of Phases:
3
Frequency:
60 hertz
Product Details:
Ringless Meter Socket
Number of Terminations:
7
Product Group:
Power Distribution

Milbank U4184-O – Frequently Asked Questions

1) Will a Milbank U4184 meter socket work on a 3-phase 4-wire 120/208V service?
The Milbank U4184 is a 7-terminal, 3-phase socket rated 600V AC at 60 Hz, so it covers 120/208V and 277/480V 3-phase 4-wire services. The 7-jaw configuration is the standard arrangement for 3-phase 4-wire self-contained metering; a 3-phase 3-wire service uses a 5-jaw socket instead, so confirm with the utility which jaw count they require before ordering.
2) What is the difference between the U4184-O and U4184-X meter sockets?
Both are 200A single-position 7-terminal ringless sockets with lever bypass. The U4184-O is the plain top, underground version, so service conductors come up from below with no hub opening in the top. The U4184-X has a large closing plate and is side bussed, which suits a side wireway feed. Pick based on how the service enters the enclosure at your site.
3) Can I pull the meter on a Milbank U4184 without killing power to the tenant?
Yes. The U4184 is built with a lever bypass, which closes a bypass path across the meter jaws so the meter can be removed or exchanged while the load stays energized. That is why these get specified on services where an outage is a problem, like a tenant space or a process load. Only the utility or authorized personnel should operate the bypass.
4) What size service conductors will fit the lugs on this 200A Milbank socket?
Line and load terminals both take 6 AWG through 350 kcmil, and they are lay-in type lugs, which makes dressing large parallel-free single conductors into the box easier. There is also a ground lug for the equipment grounding conductor. 350 kcmil copper or aluminum covers a 200A service in normal sizing, so no reducers or pin terminals are needed.
5) Does this Milbank meter socket include a main breaker or disconnect?
No. The U4184 is a meter socket only, with no main breaker and no receptacles, so the service disconnect and overcurrent protection have to come from separate gear downstream (or upstream, depending on how the service is arranged). If you need metering and the main in one enclosure, you want a meter-main combination unit rather than this socket.
6) Is a ringless meter socket what my utility requires, or do I need a ring-type?
The U4184 is a ringless design, meaning the meter is held by a hinged or lift-off cover rather than a separate sealing ring. Utilities specify one or the other and they are not interchangeable in the field, so check the utility's approved meter equipment list before you order. Many investor-owned utilities standardized on ringless; others still require ring-type.
7) How much wall space do I need for a Milbank U4184 meter socket?
Plan for a surface-mounted enclosure measuring 6L x 18W x 19.25H inches, so roughly 18 inches wide by 19-1/4 inches tall on the wall with 6 inches of projection. Leave working clearance in front per the electrical code for the service voltage, and allow room above or below for the conduit run your variant uses.
8) Can this Milbank socket be mounted outdoors on an exterior wall?
Yes, it is a Type 3R enclosure and UL Listed, so it is rated for outdoor use against rain, sleet and ice. The shell is G90 galvanized steel with a powder coat finish for corrosion resistance. Type 3R is not a washdown or dust-tight rating, so for a hose-down or heavy industrial-dust location you want a higher enclosure type.
9) Can I feed this meter socket from overhead instead of underground?
Cable entry on the U4184 family covers overhead, underground and side wireway. The variant decides the practical path: order the U4184-O plain top for an underground lateral, or the U4184-X with the large closing plate for a side-bussed wireway feed. For an overhead drop you need the top configured for a hub or weatherhead connection, so match the option to the service type on the drawing.
10) How many meters can I put on a Milbank U4184, and what do I use for a multi-tenant building?
One. The U4184 is a single-position socket, so it meters one service. For a multi-tenant property you either install one socket per tenant or specify a multi-position meter stack or EUSERC-style metering pack sized for the number of tenants and the service amperage.
11) What insulation is used behind the meter jaws on this socket?
Glass polyester supports the 7-terminal jaw assembly. It is a thermoset material that holds dielectric strength and dimensional stability under the heat a 200A continuous load puts through the jaws, which matters more on 3-phase sockets where there are seven current-carrying terminations in the same block.
12) Is the 200A rating on this Milbank socket continuous or just a short-time rating?
It is 200 amperes continuous, which is the figure to size against for a 200A service running at full load. The socket itself provides no overcurrent protection, so the 200A device protecting the conductors sits in separate gear.
How fast can I get the Milbank U4184-O 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 U4184-O come with a warranty?
Absolutely. The Milbank U4184-O 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 U4184-O?
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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