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Manufacturer Resources
Product Specs
- Amperage Rating:
- 320A
- Certifications:
- UL
- Compliances:
- EUSERC Approved
- Interrupt Rating:
- 22 kAIC
- Product Height:
- 38 in
- Product Length Depth:
- 6 in
- Product Weight:
- 100 lb
- Product Width:
- 24 in
- Department:
- Electrical
- Product Finish:
- ANSI 61 gray paint
- Product Material:
- Galvanized steel
B-LINE U404MC – Frequently Asked Questions
1) Can the B-Line U404MC meter breaker enclosure be mounted outdoors?
Yes. The U404MC is a 3R enclosure, which is the rain-tight rating used for outdoor service equipment on an exterior wall. It is built from galvanized steel with an ANSI 61 gray painted finish, so it handles weather exposure on a surface-mounted service entrance. It is UL listed.
2) Will a 4-jaw ring type meter socket match my utility's meter?
The U404MC uses a ring type socket with 4 jaws in a single position, wired 1 phase / 3 wire. That combination is the common residential and light commercial single phase self-contained arrangement. If your utility specifies a ringless cover or a 5-jaw (network / 3-phase) socket, this is not the right can, since the jaw count and the ring style are both fixed on this unit.
3) Does this Eaton B-Line meter socket work for both overhead and underground service?
Both. The U404MC is built for overhead and underground feed, so the same unit covers a weatherhead drop or a lateral coming up from below. That matters on a jobsite where the utility has not finalized how the service is landing.
4) What wire size can I land in the B-Line U404MC?
Terminations accept #14 through 2/0 conductors. Check the copper or aluminum size your service calculation lands on against that range before you order, because anything larger than 2/0 will not terminate in this unit.
5) Is this meter main acceptable to utilities that require EUSERC drawings?
Yes, the U404MC is EUSERC approved, which is the requirement most Western US utilities hold service equipment to for plan approval and inspection. It is also UL listed.
6) Does the U404MC include a main breaker, or do I need a separate disconnect?
It is an MCB unit, meaning a main circuit breaker is part of the assembly, so the meter and the service disconnect are in one enclosure. You do not need a separate service disconnect alongside it. It also includes a test block for utility metering verification.
7) How much wall space do I need for the B-Line U404MC meter main?
Plan for a 38 inch tall by 24 inch wide footprint with a 6 inch depth off the wall. It weighs 100 lb, so it is a two-person set on a surface mount, and you want the mounting substrate and lag points sized for that before you hang it.
8) What is the exact part number for this B-Line meter breaker?
Order it as Eaton B-Line U404MC. That is the single model covered, a surface mount 3R meter breaker with a ring type 4-jaw socket and an integral main breaker.
How fast can I get the B-LINE U404MC 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 B-LINE U404MC come with a warranty?
Absolutely. The B-LINE U404MC 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 B-LINE U404MC?
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 B-LINE U404MC from ZenSupply?
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