Specification
For more information visit: www.cutler-hammer.eaton.com
 TD00502001E
Technical Data
Page
 2
Effective: April 2002
Meter Breakers
Residential Meter Breakers
Residential Meter Breakers
Product Description
A meter breaker is service entrance 
equipment that consists of a single 
meter socket and loadcenter (circuit 
breaker distribution section) or meter 
socket and main breaker combined 
in one enclosure. Sometimes called 
Combos, All-In-Ones, Meter Centers or 
Meter Mains these units are increasing 
in popularity as the socket and load-
center or main breaker are located 
in one location, thus providing the 
contractor with a labor and material 
savings when installing.
Application Description
In addition to residential installations, 
meter breakers are equally applicable 
for rural service entrance, mobile 
homes, and construction site tempo-
rary power. Meter breakers are most 
often sold in the western, southwest-
ern and southeastern United States. 
The popularity of meter breakers is 
continuing to increase as more utilities 
deregulate and pass the responsibility 
of supplying watt-hour meter sockets 
on to the electrical contractor.
Application Considerations
We have the meter breaker to meet 
your application. Cutler-Hammer 
offers:
■
Non-EUSERC.
■
EUSERC/West Coast 
(Electrical Utility Service Equipment 
Requirements Committee).
■
House Panels.
■
Commercial Safety Sockets.
Non-EUSERC 
The Cutler-Hammer line of Non-EUSERC
meter breakers is designed for cus-
tomers served by utilities that are not 
members of EUSERC.
EUSERC/West Coast 
The Cutler-Hammer line of EUSERC 
approved devices adheres to the agreed 
upon standards. EUSERC utilities are 
predominately located in the western 
United States, but some eastern and 
midwestern utilities are also members. 
These units can also be used in many 
Non-EUSERC areas.
House Panels
Meter breaker device rated at 
300 – 400A. Applied in EUSERC and 
Non-EUSERC areas.
Commercial Safety Sockets 
Applied in EUSERC and Non-EUSERC 
service areas and used in commercial 
applications.
Standards and Certifications
■
UL Specification 414 (socket).
■
UL File Number E52977.
■
AEIC-EEI-NEMA Standards (MSJ-7).
■
Meet EUSERC Utility requirements 
where noted.
■
Documented Seismic Qualified — 
UBC and CBC Title 24.
■
UL Specification 67 (panel).
Product Specifications
■
Ratings single-phase, 3-wire, 
120/240V AC.
■
100 – 225 ampere main breaker and 
main lug types.
■
10,000 amperes rms symmetrical 
short circuit rating.
Features, Benefits 
and Functions
■
Both BR and CH type branch circuit 
breaker styles available.
■
Meets latest NEC wire bending 
space requirements.
■
Slotted sealing screws at hub with 
sealing provision provided.
■
Surface units are supplied with 
mounting tabs.
■
Semi-flush units are supplied with 
stucco flange.
■
Meter socket ring landing will 
accept locking security rings.
■
Overhead or underground service.
■
Fifth jaw can be installed in the 
3 o’clock or 9 o’clock position.
■
Semi-flush with nail flange or 
surface mounting.
■
Meter mounting and underground 
pull sections are utility sealable.
■
Units are rated a minimum of 10 kAIC; 
some units are 22 kAIC.
■
Numerous units supplied with 
center keyhole for ease of mounting.










