Milbank 200A 1-Phase Ringless ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$675.10
Milbank U9551 5-Terminal Ringless Meter Sockets - Lever Bypass, Various Hub and Shell Configurations

Milbank 200A 1-Phase Ringless Meter Socket with Lever Bypass - 5-Terminal Surface Mount

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Model: U9551-R-5T9

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

$675.10
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Milbank 200A 1-Phase Ringless Meter Socket with Lever Bypass - 5-Terminal Surface Mount

Professional electrical metering solution with convenient bypass functionality

The Milbank 200A 1-Phase Ringless Meter Socket delivers reliable electrical metering with integrated lever bypass functionality for professional installations. Featuring 5-terminal configuration with 200 continuous ampere rating and 600V AC capacity, this surface-mount unit provides durable G90 galvanized steel construction with powder coat finish for long-lasting performance in Type 3R rated applications.

Professional Features & Benefits

  • 200 Continuous Ampere Rating: Handles substantial electrical loads for residential and light commercial applications with reliable current capacity.
  • Lever Bypass Provision: Enables convenient meter removal and maintenance without interrupting power service to the installation.
  • 5-Terminal Ringless Design: Provides secure electrical connections without requiring ring terminals, simplifying installation and maintenance procedures.
  • G90 Galvanized Steel Construction: Delivers superior corrosion resistance and structural integrity with professional powder coat finish for extended service life.
  • Type 3R Rating: Ensures reliable outdoor performance with protection against rain, sleet, and ice formation in various weather conditions.
  • UL Listed Certification: Meets rigorous safety and performance standards for professional electrical installations and code compliance.
  • Surface Mount Configuration: Facilitates straightforward installation on walls and structures with accessible mounting design.

Technical Specifications

  • Amperage Rating: 200 Continuous Ampere
  • Application: Meter Socket
  • Brand Name: Milbank
  • Bypass Provision: Lever Bypass
  • Departent: Electrical
  • 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: 5 Terminal
  • Number Of Main Breakers: 0
  • Number Of Meter Positions: 1 Position
  • Number Of Receptacles: 0
  • Phase: 1 Phase
  • Product Family Code: HD5T
  • Product Height: 19 IN
  • Product Length: 4.844 IN
  • Product Material: G90 Galvanized Steel with Powder Coat Finish
  • Product Mounting: Surface Mount
  • Product Size: 4.844L x 13W x19H
  • Product Type: Ringless Meter Socket
  • Standard: UL Listed;Type 3R
  • Terminal: Lay in
  • Unspsc Number: 39121102
  • Voltage Rating: 600 Volts Alternating Current
  • Width: 13 IN

Professional Applications

  • Residential electrical service installations requiring reliable metering and bypass capability
  • Light commercial facilities needing professional-grade meter socket solutions
  • Multi-unit properties with individual metering requirements and maintenance access needs
  • Professional electrical contractors seeking UL listed components for code-compliant installations
  • Retrofit and upgrade projects requiring surface-mount meter socket replacement
  • Utility company installations demanding Type 3R rated outdoor performance

Why Choose Milbank Quality?

Milbank delivers proven reliability through UL Listed certification and Type 3R rated construction, ensuring dependable performance in demanding electrical applications. The G90 galvanized steel with powder coat finish provides superior corrosion resistance and durability for long-term service life in professional installations.

Manufacturer Resources

Product Specs

Amperage Rating:
200 Continuous Ampere
Application:
Meter Socket
Brand Name:
Milbank
Bypass Provision:
Lever Bypass
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:
5 Terminal
Number Of Main Breakers:
0
Number Of Meter Positions:
1 Position
Number Of Receptacles:
0
Phase:
1 Phase
Product Family Code:
HD5T
Product Height:
19 IN
Product Length:
4.844 IN
Product Size:
4.844L x 13W x19H
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:
13 IN
Department:
Electrical
Product Subgroup:
Metering & Meter Sockets
Insulation Type:
Glass Polyester
Installation Category:
Surface Mount
Terminal Type:
Lay In
Number of Phases:
1
Frequency:
60 hertz
Product Details:
Ringless Meter Socket
Number of Terminations:
5
Product Group:
Power Distribution

Milbank U9551-R-5T9 – Frequently Asked Questions

1) Will the Milbank U9551 meter socket work for a 200 amp single phase residential service?
Yes. The U9551 is rated 200 continuous amperes, 1 phase, 600V AC, 60 Hz, with one meter position and five jaws. It's a socket only, with no main breaker included, so the service disconnect has to be a separate device downstream (or upstream, per your utility's requirement).
2) What does the 5th terminal on a 5-jaw meter socket do, and do I need it?
The fifth terminal is a neutral/ground reference jaw that many utilities require on network or certain 120/240V and 120/208V configurations. The U9551 is built as a 5-terminal ringless socket, so if your utility spec sheet calls for a 4-jaw socket, this is not the one to order. Where the utility specifies the fifth terminal at the 9 o'clock position, order the U9551-R-5T9 version.
3) What's the difference between the U9551-O, U9551-RL, U9551-RRL and U9551-R-5T9?
All four are 200A, 5-terminal ringless sockets with lever bypass. The difference is the top and shell: U9551-O is a plain top (no hub opening, for underground or side-entry feeds). U9551-RL has a small hub opening with a wide shell. U9551-RRL has a large hub opening that adapts down to a small hub. U9551-R-5T9 has a large hub opening and places the fifth terminal at 9 o'clock. Pick based on your conduit size overhead and the utility's terminal position requirement.
4) What size conductors will land in the Milbank U9551 meter socket?
Both line and load terminals take 6 AWG through 350 kcmil, and they're lay-in type lugs, so the conductor drops in rather than threading through a barrel. That range covers typical 200A copper and aluminum service entrance conductors, including 4/0 aluminum and 250 kcmil aluminum.
5) Does the Milbank U9551 come with a main breaker or any receptacles?
No. It's a bare meter socket: zero main breakers and zero receptacles. If you need metering plus the service disconnect in one enclosure, you want a meter main combination unit instead. This one meters only, and the disconnect and distribution are separate equipment.
6) Can I pull the meter on the Milbank U9551 without killing power to the building?
That's what the lever bypass is for. Throwing the bypass lever carries the load around the meter so the meter can be removed or changed with service still on. It's typically a utility-operated feature, so coordinate with the serving utility before you use it.
7) Can the U9551 meter socket be mounted outdoors on an exterior wall?
Yes. It's a surface-mount enclosure rated Type 3R and UL Listed, so it's built for outdoor walls with protection against rain, sleet and ice. The shell is G90 galvanized steel with a powder coat finish for corrosion resistance.
8) Is a ringless meter socket the right choice, or do I need a ring-type one?
Utilities standardize on one or the other, and they are not interchangeable in the field. The U9551 is ringless: the cover slides over the socket and is secured by the utility's sealing mechanism rather than a locking ring band around the meter. If your utility's service handbook calls for a ring-type socket, this won't be accepted at inspection. Ringless is the more common requirement across much of the US.
9) For an underground service lateral, which U9551 should I order?
The plain top version, U9551-O, has no hub opening, which is what you want when the service conductors come up from below rather than through an overhead riser. The R, RL and RRL versions all have a hub opening in the top for a weatherhead riser.
10) Can I use the U9551 on a 480 volt three phase service?
No. The U9551 is a single phase socket, and a 3-phase service needs a 7-jaw 3-phase socket instead. The 600V AC rating is the insulation class of the enclosure, not permission to meter three phase on it. For 120/240V or 120/208V single phase at 200A, it's the correct device.
11) What insulates the jaws in the Milbank U9551 socket?
The meter block uses glass polyester insulation, a thermoset material that holds dimension and dielectric strength under the heat cycling a 200A service sees. That matters on bypass sockets, where the block carries both the jaw assembly and the bypass mechanism.
How fast can I get the Milbank U9551-R-5T9 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 U9551-R-5T9 come with a warranty?
Absolutely. The Milbank U9551-R-5T9 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 U9551-R-5T9?
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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