Milbank 200A/100A Dual Positio...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$641.35
Milbank U1780-O 4 Terminal Ring Type Plain Top 2 Position

Milbank 200A/100A Dual Position Ringless Meter Socket with Underground Entry

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Model: U1780-O

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

$641.35
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Milbank 200A/100A Dual Position Ringless Meter Socket with Underground Entry

Professional dual-position metering solution for underground service applications

The Milbank dual position ringless meter socket delivers reliable electrical metering for residential and commercial applications requiring 200A and 100A continuous amperage capacity. Featuring G90 galvanized steel construction with powder coat finish and Type 3R enclosure rating, this 1-phase 300V AC meter socket provides durable performance for underground cable entry installations with glass polyester insulation and triplex grounding.

Professional Features & Benefits

  • 200A and 100A Continuous Amperage Rating: Supports dual metering applications with flexible capacity allocation for main and sub-metered loads
  • 4 Terminal Ringless Design: Simplifies installation with lay-in terminals eliminating the need for ring-type lugs and reducing connection time
  • G90 Galvanized Steel with Powder Coat Finish: Provides superior corrosion resistance and long-term durability in outdoor environments
  • Type 3R Enclosure Rating: Ensures reliable protection against rain, sleet, and ice formation for outdoor installations
  • Underground Cable Entry: Designed specifically for underground service applications with appropriate cable management
  • UL Listed Certification: Meets rigorous safety and performance standards for professional electrical installations
  • Glass Polyester Insulation: Delivers excellent electrical insulation properties and thermal stability

Technical Specifications

  • Amperage Rating: 200 and 100 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: No Bypass
  • Cable Entry: Underground
  • Departent: Electrical
  • Equipment Ground: Triplex Ground
  • Frequency Rating: 60 Hertz
  • Hub Closing Plate: Plain Top
  • Insulation: Glass Polyester
  • Line Side Wire Range: 6 AWG - 350 kcmil
  • Load Side Wire Range: Upper 6 AWG - 350 kcmil, Lower 14 - 2/0 AWG
  • Main Breaker Size: No Main Breaker
  • Number Of Jaws: 4 Terminal
  • Number Of Main Breakers: 0
  • Number Of Meter Positions: 2 Position Vertical Design
  • Number Of Receptacles: 0
  • Phase: 1 Phase
  • Product Family Code: GVGS
  • Product Height: 26 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 x26H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Lay in
  • Unspsc Number: 39121102
  • Voltage Rating: 300 Volts Alternating Current
  • Width: 11 IN

Professional Applications

  • Residential Duplex and Multi-Unit Properties
  • Commercial Buildings with Sub-Metering Requirements
  • Mixed-Use Developments
  • Apartment Complexes and Condominiums
  • Small Commercial and Retail Establishments
  • Professional Office Buildings
  • Underground Service Installations

Why Choose Milbank Quality?

Milbank delivers proven reliability with UL Listed certification and Type 3R enclosure protection, ensuring dependable performance in demanding outdoor environments. The G90 galvanized steel construction with powder coat finish provides long-term durability and corrosion resistance for professional electrical installations.

Manufacturer Resources

Product Specs

Amperage Rating:
200 and 100 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
No Bypass
Cable Entry:
Underground
Equipment Ground:
Triplex Ground
Frequency Rating:
60 Hertz
Hub Closing Plate:
Plain Top
Insulation:
Glass Polyester
Line Side Wire Range:
6 AWG - 350 kcmil
Load Side Wire Range:
Upper 6 AWG - 350 kcmil, Lower 14 - 2/0 AWG
Main Breaker Size:
No Main Breaker
Number Of Jaws:
4 Terminal
Number Of Main Breakers:
0
Number Of Meter Positions:
2 Position Vertical Design
Number Of Receptacles:
0
Phase:
1 Phase
Product Family Code:
GVGS
Product Height:
26 IN
Product Length:
4.125 IN
Product Size:
4.125L x 11W x26H
Product Type:
Ringless Meter Socket
Standards:
UL Listed;Type 3R
Terminal:
Lay in
Unspsc Number:
39121102
Voltage Rating:
300 Volts Alternating Current
Product Material:
G90 Galvanized Steel with Powder Coat Finish
Product Mounting:
Surface Mount
Amps:
100/200
Product Width:
11 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Product Group:
Power Distribution

Milbank U1780-O – Frequently Asked Questions

1) Will the Milbank U1780-O meter socket take a 200 amp and a 100 amp service in the same enclosure?
Yes. The U1780-O is a two position vertical socket rated 200 and 100 continuous amps, single phase, 300V AC, 60 Hz. One position carries the 200A load and the other the 100A, which is the usual setup for a duplex or a house meter plus a sub-metered unit.
2) Does this Milbank dual position socket include main breakers or a bypass?
No. The U1780-O has no main breaker and no bypass provision, and no receptacles. It is a metering enclosure only, so overcurrent protection has to live downstream in separate panels or a disconnect for each position. If the utility requires a lever bypass for hot meter pulls, this is not the socket for that service.
3) Can I use this meter socket for an overhead service drop?
It is built for underground entry, with a plain top and no hub opening. Overhead service needs a socket with a hub or hub closing plate at the top to bring the service head conductors in, so for a mast or weatherhead drop you want an overhead-entry Milbank socket instead of the U1780-O.
4) What conductor sizes will the lugs in this Milbank socket accept?
Line side terminals take 6 AWG through 350 kcmil. On the load side, the upper position takes 6 AWG through 350 kcmil and the lower position takes 14 AWG through 2/0 AWG. That lower range is the limit to watch: 2/0 copper or aluminum is the largest it will land, which suits a 100A feeder but will not accept a 200A conductor, so run the 200A position out of the upper section. All terminals are lay-in type, so no ring lugs are needed.
5) Is this socket rated to be installed outdoors?
Yes. The enclosure carries a Type 3R rating, which covers rain, sleet and ice on outdoor walls, and it is UL Listed. The shell is G90 galvanized steel with a powder coat finish for corrosion resistance, and the internal insulation is glass polyester.
6) Will a standard 4 jaw single phase meter fit this ringless socket?
Each of the two positions is a 4 terminal (4 jaw) single phase socket, which is the standard residential 120/240V meter configuration. It is a ringless design, so the utility's ringless meter cover and sealing arrangement is what goes over it, not a ring-type socket cover. A 5 jaw or 7 jaw network meter will not seat in it.
7) How much wall space does the Milbank U1780-O need, and how is it mounted?
Plan for 26 inches of height and 11 inches of width, with 4.125 inches of depth off the wall. It is a surface mount enclosure, so it fastens flat to the wall or a backboard, not recessed.
8) How is grounding handled in this Milbank two-gang socket?
It is furnished with a triplex ground, the neutral/ground provision used on underground triplex service laterals. Bonding and grounding electrode connections land there per the utility's service requirements.
9) I manage a duplex where each unit needs its own meter. Is one U1780-O enough, or do I need two sockets?
One U1780-O covers both units. It is a single enclosure with two vertical meter positions, so you get two separately metered services without hanging two sockets and running two sets of line conductors. It works the same way for a house meter plus a sub-metered tenant space in a small commercial building. Since there is no main breaker in the can, each unit still needs its own downstream disconnect and panel.
10) What is the Milbank part number and family for this dual position underground socket?
The model is Milbank U1780-O, in the GVGS product family. The UNSPSC code for procurement records is 39121102.
How fast can I get the Milbank U1780-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 U1780-O come with a warranty?
Absolutely. The Milbank U1780-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 U1780-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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