Eaton MB2040B200SD All-in-ones Meter Breaker - UL Listed
Part Number: MB2040B200SD
Quick Summary
MB2040B200SD is an all-in-one residential meter breaker designed for single-phase 120/240 V metering in residential service panels. This module resolves a common installation headache by combining metering, protection, and enclosure into a compact, code-compliant package. UL Listed, with a NEMA 3R enclosure and a 10 kAIC interrupt rating, it stands up to outdoor use while maintaining safety and reliability. Its aluminum bus and top/bottom feed support fast integration in new builds and retrofit projects, aligning with residential metering product families and energizing modern energy-management strategies.
Product Information
Extended Description
MB2040B200SD Eaton: Eaton resi meter breaker, All-in-ones, 200A, C, Aluminum, NEMA 3R, Bottom and top, #6-350 kcm10 kAIC, #6-350 kcmCSR2200, Surface mounting, 40, Five-jaw, 1, 20, Single-phase, Ringless, 120/240 Vac, Horn bypass
Product Name
Eaton residential meter breaker
Catalog Number
MB2040B200SD
UPC
782116287727
Product Length/Depth
5.38 in
Product Height
32.35 in
Product Width
14.44 in
Product Weight
24 lb
Warranty
10 year
Certifications
UL Listed
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
CSR2200
Number of jaws
Five-jaw
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - MB2040B200SD
Feature: All-in-one design reduces components, wiring, and cabinet footprint → Business Impact: Faster installation, lower labor costs, and easier compliance; Application: Retrofit or new-build residential metering installations. Feature: 10 kAIC interrupt rating ensures robust fault protection → Business Impact: Enhanced safety margins and system reliability in peak-load conditions; Application: Single-phase service panels with demanding fault scenarios. Feature: NEMA 3R outdoor-ready enclosure and surface mounting → Business Impact: Outdoor readiness without additional housings, reducing enclosure cost; Application: Outdoor meter combinations and exterior service entrances. Feature: Aluminum bus with five-jaw design and top/bottom feed → Business Impact: Superior conductivity and secure terminations, reducing voltage drop and maintenance; Application: 40-circuit distribution in compact footprints. Feature: CSR2200 main circuit breaker compatibility → Business Impact: Simplified protection coordination and spare-part availability; Application: Mature Eaton metering product ecosystems.
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FAQs
MB2040B200SD supports single‑phase 120/240 V metering and is designed for surface mounting in a NEMA 3R enclosure. For correct installation observe top and bottom feed, #6‑350 kcmil grounding, and aluminum bus connections via the five‑jaw interface. Use CSR2200 as the main breaker when coordinating protection and ensure UL Listed compliance with local codes.
Key specs include 40 circuits, 10 kAIC interrupt rating, 120/240 V operation, aluminum bus, five‑jaw design, and top/bottom feed. These features enable high-density metering in compact panels, reduce voltage drop, improve fault clearing speed, and support safe operation in residential service panels with robust fault tolerance.
Yes. The unit employs a NEMA 3R enclosure designed for outdoor service and weather exposure, with surface mounting compatibility and a corrosion‑resistant aluminum bus. This combination supports reliable outdoor metering installations in residential or light commercial settings without additional protective housings.
MB2040B200SD carries UL Listed certification, indicating third‑party safety compliance, and uses a NEMA 3R enclosure suitable for outdoor use. A 10‑year warranty reinforces long‑term reliability. These certifications matter for regulatory acceptance, installer confidence, and reduced risk in utility and building code approvals.
An all‑in‑one solution reduces the number of components and wiring connections, cutting installation time and labor costs. With fewer parts to stock, simplified maintenance, and streamlined wiring, projects see faster commissioning, lower field fault rates, and improved lifecycle reliability in residential metering deployments.