Eaton MB2040P200SD Meter Breaker - UL Listed NEMA 3R
Part Number: MB2040P200SD
Quick Summary
Eaton MB2040P200SD Meter Breaker is a 200A all-in-one solution that provides integrated metering and service protection for residential panels. It reduces installation complexity by combining metering, main protection, and horn bypass in a single, compact enclosure. UL Listed and housed in a NEMA 3R enclosure, it also features dual labeling to accept BW, BWH, CSR, CSH main breakers, helping future upgrades stay code-compliant with minimal downtime. For engineers and installers, this design translates to faster panel upgrades, improved reliability, and predictable maintenance costs. Ideal for residential metering, service upgrades, and multi-tenant applications, it supports 120/240V single-phase operation with up to 40 circuits, delivering value through space efficiency and robust protection.
Product Information
Extended Description
MB2040P200SD Eaton: Eaton resi meter breaker, All-in-ones, 200A, C, Aluminum, NEMA 3R, Bottom and top, #6-350 kcm#6-350 kcmProvisions, Surface mounting, 40, Five-jaw, 1, 20, Single-phase, Ringless, 120/240 Vac, Horn bypass
Product Name
Eaton residential meter breaker
Catalog Number
MB2040P200SD
UPC
782114668900
Product Length/Depth
5.38 in
Product Height
36.63 in
Product Width
14.44 in
Product Weight
34 lb
Warranty
10 year
Certifications
UL Listed
Catalog Notes
All panels are dual labeled to accept Types BW, BWH, CSR, CSH Main Breakers.
Type
All-in-ones
Interrupt rating
10 kAIC
Box size
C
Enclosure
NEMA 3R
Ground
#6-350 kcmil
Voltage rating
120/240 V
Number of sockets
1
Phase
Single-phase
Bypass
Horn
Number of circuits
40
Bus material
Aluminum
Feed type
Top/bottom
Main circuit breaker
Provisions
Number of jaws
Five-jaw
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - MB2040P200SD
Feature → Business Impact → Application: All-in-one design reduces panel footprint and installation time, lowering labor costs and accelerating commissioning in residential metering scenarios. Application: Residential meter panels and retrofit projects. Feature → Business Impact → Application: 200A main rating with 40 circuits enables scalable service protection in compact enclosures, improving panel planning and long-term capacity planning for multi-unit dwellings. Application: New builds and upgrades requiring efficient space usage. Feature → Business Impact → Application: 10 kAIC interrupt rating provides enhanced fault tolerance, reducing upstream protection coordination risk in electrical distribution. Application: Critical loads in residential service entrances and light commercial spaces. Feature → Business Impact → Application: Aluminum bus and top/bottom feed offer durable, corrosion-resistant conductors with flexible installation options, improving reliability in outdoor or semi-exposed environments. Application: Outdoor-rated or semi-enclosed installations. Feature → Business Impact → Application: NEMA 3R enclosure with surface mounting supports versatile mounting locations and weather resistance, enabling easier integration into existing cabinets. Application: Retrofit and new installations where environmental exposure is a concern. Feature → Business Impact → Application: All panels are dual labeled to accept Types BW, BWH, CSR, CSH Main Breakers, reducing future replacement complexity. Application: Long-term compatibility and simplified maintenance.
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FAQs
MB2040P200SD is an all-in-one residential meter breaker designed for panels that accept BW, BWH, CSR, and CSH main breakers. It supports top/bottom feed, 120/240 V single-phase service, and a NEMA 3R enclosure, making it suitable for standard residential metering installations and certain light commercial applications. Dual labeling simplifies future replacements without rewiring.
The MB2040P200SD has a 10 kAIC interrupt rating, which defines the maximum short-circuit current it can interrupt safely. This rating supports reliable protection coordination for typical residential feeders and meets common code requirements for service entrances, reducing risk of equipment damage under fault conditions.
Yes. The MB2040P200SD combines metering and protection in a single enclosure, streamlining panel upgrades and metering tasks. Its 40-circuit capacity, 200A main, UL Listing, and NEMA 3R enclosure make it well-suited for upgrading aging panels or installing new metering arrangements in residential projects.
This product is UL Listed and housed in a NEMA 3R enclosure, ensuring weather resistance for outdoor or semi-exposed installations. It also comes with a 10-year warranty, providing long-term assurance of performance and value in residential and light commercial settings.
By combining metering, main protection, and bypass features in one enclosure, installation time is reduced, labor costs decline, and space requirements are minimized. Dual labeling supports future main-breaker changes without rewiring, improving maintenance efficiency and protecting return on investment over the system’s life.