Eaton CHMMB150BTS Meter Mains - UL Listed
Part Number: CHMMB150BTS
Quick Summary
Eaton CHMMB150BTS residential meter breaker provides metering and main protection for single‑phase residential service panels. Installers often struggle with space constraints, wiring flexibility, and meeting metering standards in compact or retrofit installations. This unit carries UL Listed certification and a NEMA 3R enclosure, ensuring reliable indoor or outdoor performance. Designed to align with Type CH breakers and aluminum bus construction for surface mounting, it helps simplify procurement and installation, delivering dependable long-term value for utilities, contractors, and homeowners.
Product Information
Extended Description
CHMMB150BTS Eaton: Eaton residential meter breaker, Meter mains, 150A, F, Aluminum, NEMA 3R, Bottom and top, 10 kAIC, CSR2150, Surface mounting, Five-jaw, 1, Single-phase, Ringless, Type CH breakers, 120/240 Vac, Horn bypass
Product Name
Eaton residential meter breaker
Catalog Number
CHMMB150BTS
UPC
782113682013
Product Length/Depth
4.93 in
Product Height
28.37 in
Product Width
13 in
Product Weight
30 lb
Warranty
Limited lifetime
Certifications
UL Listed
Type
Meter mains
Utility approvals
AZ : Salt River Project (SRP)
Interrupt rating
22 kAIC
Box size
F
Enclosure
NEMA 3R
Voltage rating
120/240 V
Number of sockets
1
Phase
Single-phase
Used with
Type CH breakers
Bypass
Horn
Bus material
Aluminum
Feed type
Top/bottom
Main circuit breaker
CSR2150
Number of jaws
Five-jaw
Residential and Light Commercial, Metering Products, Volume 1 Tab 4
Eaton Specification Sheet - CHMMB150BTS
Feature: 150 A rating and meter mains function with 120/240 V operation. Business Impact: Supports strong protection for standard residential services while enabling accurate metering within a single panel. Application: Ideal for new build or retrofit meter mains in single‑phase residential applications. Feature: 22 kAIC interrupt rating. Business Impact: Enhanced fault current handling reduces risk of damage to equipment and wiring; improves safety margins. Application: Suitable for higher fault level environments in homes and light commercial projects. Feature: Aluminum bus, five‑jaw design. Business Impact: Provides a robust, low‑impedance current path with reliable conductor connections; simplifies field wiring. Application: Common in surface-mounted meter mains with CH series components. Feature: NEMA 3R enclosure and surface mounting capability. Business Impact: Durable protection against weather and dirt; faster installation with minimal enclosure alterations. Application: Exterior or interior meter mains installations in varied climates. Feature: Bottom and top feed options; compatible with Type CH breakers. Business Impact: Flexible layout and streamlined procurement for status‑quo panel configurations. Application: Retrofit or new installations where space and routing matter. Feature: Horn bypass option. Business Impact: Facilitates testing and maintenance without removing protective hardware. Application: Field verification and commissioning of metered service with minimal downtime.
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FAQs
Install the CHMMB150BTS as the meter mains entry for a single‑phase panel, ensuring 120/240 V rating and proper top/bottom feed alignment. Use the five-jaw aluminum bus connections for secure wiring, then pair with compatible Type CH breakers to extend protection downstream. Confirm enclosure is NEMA 3R for outdoor locations and complete wiring checks per local codes.
It combines a 150 A rating, 22 kAIC interrupt capability, and a UL Listed certification within a NEMA 3R enclosure. These features support reliable protection and metering in standard residential service entrances, while the aluminum bus and five‑jaw design simplify wiring and reduce voltage drop in typical home installations.
Yes. The CHMMB150BTS is designed to work with Type CH breakers, providing a cohesive Eaton CH family metering and protection solution. This compatibility streamlines stocking, improves interchangeability during upgrades, and supports consistent performance across the protection scheme.
The unit is UL Listed and housed in a NEMA 3R enclosure. UL Listing confirms conformity to safety standards for electrical devices, while NEMA 3R protection ensures suitability for outdoor and semi‑exposed environments. Together, these ratings help meet common code requirements for residential meter mains and service equipment.
The combination of durable construction (aluminum bus, rugged enclosure), high interrupt rating, and compatibility with CH breakers reduces maintenance visits and part substitutions. With a limited lifetime warranty and simplified installation, you gain lower lifecycle costs, improved reliability, and faster service readiness for utilities and contractors.