Square D EZ Meter-Pak Main Lug...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,113.00
Square D EZ Meter-Pak Main Lugs Meter Center, Painted Steel, NEMA 3R

Square D EZ Meter-Pak Main Lugs Meter Center, Painted Steel, NEMA 3R

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Model: EZM3400TB

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

$1,113.00
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Square D EZ Meter-Pak Main Lugs Meter Center, Painted Steel, NEMA 3R

The Square D EZ Meter-Pak Main Lugs Meter Center delivers reliable, compact multi-metering for multi-unit residential and commercial construction. This unit features a 400A main lugs termination on an 800A rated bus, rated 240VAC max across a 3-phase, 4-wire configuration, and is housed in a painted steel, NEMA 3R enclosure suitable for both overhead (OH) and underground (UG) service feeds. The EZ Meter-Pak platform is available from 225A to 2000A to match a range of multi-metering service requirements.

Key Features

  • Main Rated Current: 400A main lugs termination for incoming service conductors.
  • Bus Rated Current: 800A rated bus supports multi-metering distribution capacity.
  • Durable Construction: Painted steel enclosure construction for long-term durability.
  • Electrical Connection: Lugs terminal accepting 1 AWG - 6...300 kcmil aluminum/copper conductors, plus a ground lug.
  • Operational Voltage: 240VAC max; rated for 208Y/120V AC or 240/120V delta AC service.
  • Wiring Configuration: 3-phase, 4-wire (3 phase in / 3 phase out).
  • Service Feed Location: Suitable for overhead (OH) or underground (UG) service entrances.
  • NEMA 3R Rated: Enclosure rated for outdoor and wet-location meter bank installations.
  • Rotating Mounting Brackets: Pivoting brackets allow drilling holes without moving the device.

Certifications & Compliance

  • UL Listed
  • NEMA 3R Rated Enclosure
  • Mercury Free
  • RoHS EUR Compliant with Exemptions

Technical Specifications

  • Warranty: 18 months
  • Warranty Period: 18 months
  • Sustainable Packaging: No
  • Mercury Free: Yes
  • Packaging Without Single Use Plastic: No
  • Tier Id: 2
  • ROHS Eur In Scope: Yes
  • Recycled Metal Content At Cr Level: 0 %
  • H And D Enrichment Assignment: no
  • Serviceability: No
  • With Recycled Cardboard: No
  • WEEE Product Category: 5
  • Total Lifecycle Carbon Footprint: 604 kg CO2 eq.
  • China ROHS In Scope: No
  • Return Indicator: Y
  • Nema Degree Of Protection: NEMA 3R
  • Enclosure Material: painted steel
  • Take Back: No
  • Tier: 2
  • Returnability: Yes

Typical Applications

  • Multi-Unit Residential Meter Centers
  • Commercial Multi-Metering Installations
  • Overhead and Underground Service Entrances
  • Outdoor and Wet-Location Meter Bank Installations
  • New Construction and Multi-Tenant Retrofit Projects

Why Square D?

Square D engineers the EZ Meter-Pak line with painted steel enclosures, UL Listed main lugs terminations, and NEMA 3R protection built to withstand outdoor and wet-location service environments. Rotating mounting brackets simplify installation, while mercury-free construction and RoHS-compliant materials support responsible, code-compliant multi-metering deployments for contractors and property managers.

Manufacturer Resources

Product Specs

Product Type:
Meter Main Combination
Voltage Rating:
240V
Amperage Rating:
400A
Configuration:
3-Phase, 4-Wire
Standards:
NEMA 3R
Listing:
UL Listed
Product Material:
Painted Steel
Department:
Electrical
Product Group:
Power Distribution
Product Subgroup:
Metering & Meter Sockets
Product Depth:
7.09 in
Product Width:
17.15 in
Product Height:
30.46 in

Square D EZM3400TB – Frequently Asked Questions

1) Can the Square D EZM3400TB meter center be installed outdoors on an exterior wall?
Yes. The EZM3400TB is built in a painted steel NEMA 3R enclosure, which is rated for outdoor and wet-location meter bank installations. It accepts either an overhead or an underground service entrance, so it works on an exterior wall whether the utility feed drops from a mast or comes up from a lateral.
2) Does the EZM3400TB include a main breaker, or is it main lugs only?
It is a main lugs device. Incoming service conductors land directly on a 400A main lugs termination, with no main breaker in the unit, so overcurrent protection for the service has to come from upstream or from the branch devices as your design requires. If your inspector wants a service disconnect at the meter bank, a main breaker version of the EZ Meter-Pak is the one to specify instead.
3) What size conductors will land in the 400A main lugs on this Square D meter center?
The lugs accept 1 AWG through 6...300 kcmil aluminum or copper conductors, and a ground lug is provided. That range covers typical 400A aluminum or copper service runs; if your design calls for larger parallel sets beyond 300 kcmil per lug, you need a higher-amperage EZ Meter-Pak section.
4) Will the EZM3400TB work on a 208Y/120V three phase service?
Yes. It is rated for 208Y/120V AC as well as 240/120V delta AC, with 240VAC as the maximum, in a 3-phase, 4-wire configuration (three phase in, three phase out). It is not for 480V service.
5) Why is the main rated 400A but the bus 800A on this EZ Meter-Pak section?
The 800A bus rating is the distribution capacity carried through the meter stack, while 400A is what the main lugs termination is rated to accept from the incoming service. The heavier bus lets the section tie into a larger multi-metering lineup; the 400A figure is the limit on what you can feed into this particular device.
6) How much wall space and depth do I need for the EZM3400TB section?
The enclosure measures 30.46 in height, 17.15 in width and 7.09 in depth. Plan the backboard or wall opening around that footprint, plus whatever working clearance your installation requires in front of the meter bank.
7) Is this meter center UL Listed for a code inspection on a multi-family building?
The EZ Meter-Pak main lugs meter center is UL Listed, and the enclosure carries a NEMA 3R rating for outdoor and wet locations. The unit is also mercury free and RoHS EUR compliant with exemptions, which matters on projects with material-content reporting.
8) If 400A is not enough for my apartment building's meter bank, what else does the EZ Meter-Pak line offer?
The EZ Meter-Pak platform runs from 225A up to 2000A, so if the service calculation lands above 400A you specify a larger section from the same family rather than paralleling this one. The EZM3400TB is the 400A main lugs, 800A bus version.
9) What makes mounting the EZM3400TB easier for the installing electrician?
It uses rotating mounting brackets. The brackets pivot so you can drill your mounting holes without taking the device off the wall or repositioning it, which saves a second set of hands when you are hanging a stack of meter sections in line.
10) What is the exact Square D part number and where is this meter center made?
The part number is EZM3400TB, a Square D EZ Meter-Pak main lugs meter center, country of origin Mexico. Use that MPN when matching existing sections on a building so the bus and enclosure line up with what is already installed.
How fast can I get the Square D EZM3400TB 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 Square D EZM3400TB come with a warranty?
Absolutely. The Square D EZM3400TB 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 Square D EZM3400TB?
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 Square D EZM3400TB from ZenSupply?
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