Eaton MBX2040B150BTS Residential Meter Breaker - UL Listed
Part Number: MBX2040B150BTS
Quick Summary
Eaton MBX2040B150BTS is a residential meter breaker that combines metering and breaker protection for 120/240 V home panel boards. For engineers and contractors, coordinating metering functions with main protection in compact spaces can slow projects and introduce wiring errors. This unit carries UL Listed certification, a NEMA 3R enclosure, and a 22 kAIC interrupt rating to deliver safe, reliable service in varied environments. The solution also streamlines procurement and installation, reducing wiring complexity while enabling integrated metering capabilities in new-builds or retrofit applications.
Product Information
Extended Description
MBX2040B150BTS Eaton: Eaton resi meter breaker, All-in-ones, 150A, Aluminum, NEMA 3R, Bottom and top, #6-350 kcm22 kAIC, #6-350 kcmCSR, Surface mounting, 40, Four-jaw, 1, 20, Single-phase, Ringless, Black Hills Energy, 120/240 Vac, Lever bypass
Product Name
Eaton residential meter breaker
Catalog Number
MBX2040B150BTS
UPC
786685460635
Product Length/Depth
4.93 in
Product Height
39.81 in
Product Width
14.19 in
Product Weight
40 lb
Warranty
10 year
Certifications
UL Listed
Type
All-in-ones
Utility approvals
IL : Ameren MO : Ameren CO : Xcel Energy MI : Xcel Energy MN : Xcel Energy ND : Xcel Energy NM : Xcel Energy SD : Xcel Energy TX : Xcel Energy WI : Xcel Energy
Interrupt rating
22 kAIC
Enclosure
NEMA 3R
Ground
#6-350 kcmil
Voltage rating
120/240 V
Number of sockets
1
Phase
Single-phase
Bypass
Lever
Number of circuits
40
Bus material
Aluminum
Feed type
Top/bottom
Main circuit breaker
CSR
Number of jaws
Four-jaw
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - MBX2040B150BTS
All-in-one metering and protection module reduces panel footprint and simplifies wiring, enabling faster installations and fewer on-site modifications. This translates to lower labor costs and shorter project timelines, especially in dense residential builds where space is at a premium and field splicing must be minimized. Ideal for new homes and multi-dwelling units, it supports 120/240 V single-phase service with a 40-circuit capacity, delivering scalable protection without sacrificing usability. The integrated design also eases documentation and compliance tracking for utility interconnections and building audits, improving overall project reliability. Long-term reliability is enhanced by factory-aligned components and a robust enclosure standard, helping facilities teams manage lifecycle costs with predictable maintenance needs.
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FAQs
MBX2040B150BTS is designed for 120/240 V single-phase service and supports up to 40 circuits with top/bottom feed. Its aluminum bus and four-jaw grounding enable secure, reliable connections in common residential panel configurations, while the NEMA 3R enclosure provides outdoor-ready robustness. This makes it a seamless fit for new homes and retrofit projects seeking integrated metering with protective function in a compact footprint.
The MBX2040B150BTS offers a 22 kAIC interrupt rating, UL Listed certification, and a 120/240 V operating range. It combines metering with a main circuit protection function in an all-in-one unit, reducing separate components and wiring. Ground connections support #6-350 kcmil conductors, and the four-jaw design ensures secure mechanical retention for long-term reliability in routine service conditions.
Yes. The enclosure is rated NEMA 3R, providing weather resistance suitable for outdoor meter/main installations and exterior electrical rooms. The combination of rugged enclosure and UL-listed components reduces corrosion concerns and maintenance needs, making it a dependable choice for both single-family homes and outdoor commercial applications that require durable protection against the elements.
The MBX2040B150BTS is UL Listed and designed to align with utility interconnection practices. It carries recognized approvals for use with multiple utilities listed in its product specs, including Ameren and Xcel Energy territories, which can streamline interconnection processes and reduce the time required for utility clearance during project commissioning.
By integrating metering and protection in a single unit, the MBX2040B150BTS reduces field wiring, simplifies maintenance, and lowers installation labor costs. Its 10-year warranty further lowers lifecycle risk, while the UL listing and durable enclosure minimize service interruptions. The result is a clearer ROI through faster deployments, fewer spare parts, and improved long-term reliability.