Eaton MBB150BTS Meter mains - UL Listed 22 kAIC
Part Number: MBB150BTS
Quick Summary
The Eaton MBB150BTS residential meter breaker provides a ready-to-install meter mains solution for single-phase residential service. It reduces field complexity by combining metering and main protection in a compact enclosure, helping installers save time and avoid wiring issues. UL Listed certification and a NEMA 3R enclosure rating ensure dependable performance in outdoor and indoor environments, with MEG/IMP utility approvals supporting regional compliance. This product aligns with Eaton's meter mains ecosystem, delivering reliable protection while enabling faster project execution and long-term lifecycle value for developers and utilities alike.
Product Information
Extended Description
MBB150BTS Eaton: Eaton resi meter breaker, Meter mains, 150A, C, Aluminum, NEMA 3R, Bottom and top, #6-350 kcm10 kAIC, #6-350 kcmCSR2125, Surface mounting, Four-jaw, 1, Single-phase, Ringless, 120/240 Vac
Product Name
Eaton residential meter breaker
Catalog Number
MBB150BTS
UPC
782116073252
Product Length/Depth
5.38 in
Product Height
25 in
Product Width
14.44 in
Product Weight
35 lb
Warranty
10 year
Certifications
UL Listed
Type
Meter mains
Utility approvals
NC : Dominion VA : Dominion FL : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) IN : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) KY : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) NC : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) OH : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) SC : MEG (Duke Energy, Florida Power, Tampa Electric, Gulf Power, Oklahoma Gas and Electric) IN : Indiana Michigan Power (IMP) (AEP East) MI : Indiana Michigan Power (IMP) (AEP East) OH : AEP Ohio (AEP East) TN : Appalachian Power (AEP East) VA : Appalachian Power (AEP East) WV : Appalachian Power (AEP East)
Interrupt rating
22 kAIC
Box size
C
Enclosure
NEMA 3R
Ground
#6-350 kcmil
Voltage rating
120/240 V
Number of sockets
1
Phase
Single-phase
Bus material
Aluminum
Feed type
Top/bottom
Main circuit breaker
CSR2125
Number of jaws
Four-jaw
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - MBB150BTS
Feature → Business Impact → Application: The MBB150BTS combines metering and main protection in a single, 150 A meter mains unit, reducing panel footprint and labor costs while speeding commissioning for single-phase residential service connections. Application: ideal for new builds or retrofit projects where space is tight and reliability is critical. Feature → Business Impact → Application: 22 kAIC interrupt rating provides robust fault current handling, improving safety margin against short-circuit events and reducing downstream damage in utility-grade residential service entrances. Application: suitable for locations with high fault current potential and strict safety requirements. Feature → Business Impact → Application: NEMA 3R enclosure with top and bottom feed and four-jaw connections offers weather resistance and versatile installation, enabling outdoor or indoor mounting with easy service access. Application: outdoor meter mains near building exterior or protected indoor walls. Feature → Business Impact → Application: aluminum bus and ground rated to #6-350 kcmil ensure durable, low-resistance conductor paths and secure grounding, improving long-term reliability and ease of field termination. Application: ringless, four-jaw grounding configurations for fast, dependable connections. Feature → Business Impact → Application: main circuit breaker CSR2125 simplifies protection coordination and reduces component count, lowering installation time and potential failure points. Application: standard residential service entry with integrated main protection. Feature → Business Impact → Application: 10-year warranty and UL Listed certification reduce lifecycle risk and support maintenance planning, driving total cost of ownership benefits. Application: asset-intensive deployments in multi-unit or commercial-residential projects requiring dependable supply protection.
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FAQs
For proper installation, plan top/bottom feed wiring with the four-jaw grounding scheme and ensure a surface-mountable, NEMA 3R enclosure. Use #6-350 kcmil conductors for the grounding path and verify use of the CSR2125 main breaker. The unit supports single-phase 120/240 V service and provides a compact, integrated solution ideal for meter mains assemblies.
Yes. The MBB150BTS carries UL Listed certification and is designed to align with multiple utility approval programs, including MEG and IMP, across various regions. This support helps streamline approvals for residential service installations and meter mains projects in states and utilities that recognize Eaton’s metering products.
The unit features a 22 kAIC interrupt rating, which defines the maximum short-circuit current it can interrupt safely. This rating supports robust protection for typical residential services and higher fault current environments, reducing the risk of equipment damage and improving overall system safety when connected to the utility grid.
Yes. The enclosure is NEMA 3R rated, providing weather resistance suitable for outdoor use. Its aluminum bus and rugged construction, combined with UL Listed certification, ensure reliable service in exposed environments while supporting top/bottom feed configurations for flexible mounting near the service point.
Eaton backs the MBB150BTS with a 10-year warranty and UL Listed certification, signaling long-term durability and compliance. This reduces lifecycle risk and simplifies maintenance planning for utilities and contractors handling meter mains installations in residential projects.