Milbank 100A 1-Phase Ringless ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,066.66
Milbank U9648 4 Terminal Ringless Meter Socket, Small Hub Open - 100A Main Breaker Configurations

Milbank 100A 1-Phase Ringless Meter Socket with Main Breaker - 4 Terminal Surface Mount

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Model: U9648-RL-100-PH

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

$1,066.66
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Milbank 100A 1-Phase Ringless Meter Socket with Main Breaker - 4 Terminal Surface Mount

Professional electrical metering solution with integrated main breaker protection

The Milbank 100A 1-Phase Ringless Meter Socket delivers reliable electrical metering and main breaker protection in a compact surface mount design. Featuring G90 galvanized steel construction with powder coat finish and Type 3R rating, this UL Listed meter socket provides durable performance for residential and light commercial applications. The 4 terminal configuration with lay-in terminals accommodates overhead or underground cable entry with flexible wire range compatibility.

Professional Features & Benefits

  • 100 Continuous Ampere Rating: Provides reliable service capacity for residential and light commercial electrical loads with consistent performance.
  • Integrated Main Breaker Protection: One 100 ampere main breaker delivers essential overcurrent protection and convenient disconnect capability.
  • Type 3R Weather Rating: UL Listed enclosure withstands outdoor environmental conditions for versatile installation locations.
  • G90 Galvanized Steel Construction: Powder coat finish over galvanized steel provides superior corrosion resistance and long-term durability.
  • Flexible Cable Entry: Accommodates both overhead and underground service connections with small hub opening configuration.
  • 4 Terminal Ringless Design: Lay-in terminal configuration simplifies installation and maintenance procedures.
  • Glass Polyester Insulation: High-quality insulation materials ensure reliable electrical isolation and safety performance.

Technical Specifications

  • Amperage Rating: 100 Continuous Ampere
  • Application: Meter Socket With Main
  • Brand Name: Milbank
  • Bypass Provision: No Bypass
  • Cable Entry: Overhead or Underground
  • Departent: Electrical
  • Equipment Ground: Ground Bar
  • 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: Four 12 - 1/0 AWG
  • Main Breaker Size: One 100 Ampere Main Breaker
  • Number Of Jaws: 4 Terminal
  • Number Of Main Breakers: 1
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 1 Phase
  • Product Family Code: MTMN
  • Product Length: 4.125 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Lay in
  • Unspsc Number: 39121102
  • Voltage Rating: Up to 240 Volts Alternating Current
  • Width: 8 IN

Professional Applications

  • Residential Service Entrance Metering
  • Small Commercial Facilities
  • Multi-Unit Properties
  • Professional Offices
  • Retail Establishments
  • Light Industrial Applications
  • Utility Service Connections

Why Choose Milbank Quality?

Milbank delivers proven reliability through UL Listed construction and Type 3R weather rating for dependable outdoor performance. The G90 galvanized steel with powder coat finish ensures long-term durability and corrosion resistance, while the professional 4 terminal ringless design provides versatile installation options for overhead or underground service connections.

Manufacturer Resources

Product Specs

Amperage Rating:
100 Continuous Ampere
Application:
Meter Socket With Main
Brand Name:
Milbank
Bypass Provision:
No Bypass
Cable Entry:
Overhead or Underground
Equipment Ground:
Ground Bar
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:
Four 12 - 1/0 AWG
Main Breaker Size:
One 100 Ampere Main Breaker
Number Of Jaws:
4 Terminal
Number Of Main Breakers:
1
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
1 Phase
Product Family Code:
MTMN
Product Length:
4.125 IN
Product Type:
Meter Main Combination
Standards:
UL Listed;Type 3R
Terminal:
Lay in
Unspsc Number:
39121102
Voltage Rating:
Up to 240 Volts Alternating Current
Product Material:
G90 Galvanized Steel with Powder Coat Finish
Product Mounting:
Surface Mount
Amps:
100
Product Width:
8 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Insulation Type:
Glass Polyester
Hub Style:
Small Hub Opening
Installation Category:
Surface Mount
Terminal Type:
Lay In
Number of Phases:
1
Product Details:
Ringless Meter Socket
Frequency:
60 hertz
Number of Terminations:
4
Product Group:
Power Distribution

Milbank U9648-RL-100-PH – Frequently Asked Questions

1) Will the Milbank U9648-RL meter socket accept 2/0 aluminum service entrance conductors?
Line side lugs on the Milbank U9648-RL take 6 AWG through 2/0 AWG, so 2/0 service entrance conductors land directly. They are lay-in terminals, so you drop the conductor in rather than threading it through a closed lug. On the load side there are four terminations rated 12 AWG through 1/0 AWG.
2) Is a 4 terminal ringless socket the right one for a 100A single phase 240V residential service?
Yes for standard single phase 120/240V residential and light commercial service. The U9648-RL is 1 phase, 4 jaw, rated up to 240 volts AC at 60 Hz, with one meter position and 100 continuous amperes. If your utility requires a 5 jaw socket (common where a separate neutral jaw is specified) or a 3 phase network meter, this is the wrong socket. Utility jaw count is dictated by the serving utility, so match their spec sheet before ordering.
3) Do I still need a separate main breaker panel outside with this Milbank socket?
No separate outdoor disconnect is needed for the service. The U9648-RL is a meter socket with main: one 100 ampere main breaker is built in, giving overcurrent protection and a service disconnect at the meter. Downstream you feed a load center from the four load side terminations (12 - 1/0 AWG). Note there is no bypass provision, so the meter must be pulled or the main opened to work de-energized.
4) What is the difference between the U9648-RL-100 and the U9648-RL-100-PH?
Both are the same 100A 4 terminal ringless socket with main. The U9648-RL-100 is the triple tap version; the U9648-RL-100-PH is the pole hanger version, built to mount on a pole rather than a flat wall. Pick the PH for a pole-set temporary or farm service, the standard version for building wall mounting.
5) Does this Milbank socket work for an underground service lateral, or only overhead?
Both. Cable entry is rated for overhead or underground service. The enclosure ships with a small hub opening closing plate, so for an overhead drop you install the appropriate hub in that opening; for an underground lateral you bring the conductors in through the bottom and leave the hub plate in place.
6) Can this meter socket be mounted outdoors on an exterior wall?
Yes. The enclosure is UL Listed and Type 3R rated, which covers outdoor rain and sleet exposure, and it is a surface mount unit. The shell is G90 galvanized steel with a powder coat finish for corrosion resistance, with glass polyester used for electrical insulation internally.
7) Is a grounding bar included in the Milbank U9648-RL, or do I have to add a ground kit?
A ground bar is included as the equipment ground means in the U9648-RL, so you can land the equipment grounding conductor and grounding electrode conductor without buying a separate kit. There are no receptacles in this enclosure, so if you need a GFCI outlet at the service point that is a separate device.
8) What size hub do I need to order for an overhead drop into this socket?
The U9648-RL uses a small hub opening, so the hub you add has to be the small-hub pattern for Milbank enclosures rather than a large hub. The socket itself ships with the closing plate over that opening, so the hub is a separate line item on your order when the service comes in overhead.
9) Can I use this 100A combination socket on a small apartment building or strip retail unit?
It serves one tenant. There is a single meter position and one 100A main, so a building with multiple tenants needs one of these per unit or a multi-position meter stack instead. Within a single 100A single phase service at 240 volts or less, a professional office, retail space, or light industrial unit is squarely in range.
10) Does a ringless meter socket need a sealing ring, and how is the cover removed?
No ring. On a ringless socket like the U9648-RL the utility seals the cover itself, and the cover lifts off after the seal is cut rather than requiring a separate ring to be unbolted. Many utilities specify ringless; some still require ring type, so confirm which style your serving utility accepts.
11) Will this socket fit between studs or in a tight meter location?
Published case dimensions are 8 IN width and 4.125 IN length, and it is a surface mount enclosure, so it sits on the wall face rather than recessing into the wall cavity. For a flush or recessed meter location you want a flush mount socket instead.
How fast can I get the Milbank U9648-RL-100-PH 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 U9648-RL-100-PH come with a warranty?
Absolutely. The Milbank U9648-RL-100-PH 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 U9648-RL-100-PH?
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 U9648-RL-100-PH from ZenSupply?
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