Cut Sheet

Volume 1—Residential and Light Commercial CA08100002E—August 2015 www.eaton.com V1-T1-31
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1.1
Loadcenters and Circuit Breakers
Type CH Loadcenters and Circuit Breakers
Plug-On Circuit Breakers
Contents
Description Page
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V1-T1-2
CH Specialty Products . . . . . . . . . . . . . . . . . . . . . V1-T1-14
CH Loadcenter Options and Accessories . . . . . . . V1-T1-22
CH Circuit Breakers
Product Selection. . . . . . . . . . . . . . . . . . . . . . . V1-T1-32
Options and Accessories . . . . . . . . . . . . . . . . . V1-T1-38
Technical Data and Specifications . . . . . . . . . . V1-T1-40
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . V1-T1-40
CH Circuit Breakers
Product Description
Quick-make, quick-break
switch mechanism combined
with inverse time element
tripping operation and trip-
free handle design. Type CH
circuit breakers trip to the
OFF position, eliminating
nuisance callbacks. The CHF
family also includes a trip flag
to differentiate between a trip
and the breaker being turned
off. The thermal-magnetic trip
curve avoids nuisance tripping
on mild overloads while
reacting almost instantaneously
to severe short-circuit
conditions. Multipole breakers
have internal common trip
connection to operate all
poles simultaneously. Handles
are marked with ON-OFF
indication and ampere rating
of the breaker.
Special Application Plug-On
Circuit Breakers—Type CH
10 kAIC 120 Vac and 120/240 Vac
Branch Feeder Type Arc
Fault Circuit Breakers
A branch feeder type arc fault
circuit interrupter is a device
intended to mitigate high
current arcing faults in the
complete circuit, including
connected cords. High
current arcing faults can
occur from line to neutral or
line to ground. These arcing
faults are in parallel with the
load and produce the most
energy of all arcing faults.
The branch feeder type AFCI
is required in the 1999 and
2002 National Electrical Code.
The Combination Type AFCI
is required in all subsequent
editions of the National
Electrical Code.
Combination Type Arc
Fault Circuit Breakers
A combination type arc fault
circuit interrupter is a device
that offers mitigation of high
current arcing faults in the
complete circuit, including
connected cords. In addition it
provides direct detection of
persistent low current arcing
faults down to 5 amps with
associated mitigation of
fire hazards in the cords
connected to the outlets. High
current arcing faults can occur
from line to neutral or line to
ground. These arcing faults
are in parallel with the load
and produce the most energy
of all arcing faults. The current
level of low current arcing
faults is limited by the load.
Ground Fault Circuit
Breakers—Ground Fault
Application Notes
Single-pole Type CHGFIs are
designed for use in two-wire,
120 Vac circuits. The diagram
on Page V1-T1-40 shows a
typical wiring configuration.
Two-pole Type CHGFIs are
designed for use in three-
wire, 120/240 Vac circuits,
120 Vac multiwire circuits
employing common, neutral
and two-wire, 240 Vac
circuits obtained from a
120/240 Vac source.
Diagrams on Page V1-T1-40
illustrate typical wiring
configurations for 120/240 Vac
multiwire circuits.
The diagram on Page
V1-T1-40 depicts a 240 Vac,
two-wire circuit. Note the
“panel neutral” conductor
connects to the neutral bar,
even though the neutral is not
included in the load circuit.
This connection is necessary
to supply a 120 Vac power
source to the ground fault
sensing circuit.
The figures are shown with
a 120/240 Vac, single-phase,
three-wire power source,
but are also applicable to a
120/208 Vac, three-phase,
four-wire power supply.
For all figures, the electrical
operation of the Type CHGFI
is not affected by the
equipment ground.
Features
Latch
Spring
Over-Center
Tog g l e Spr i n g
Latch
Lever
Magnetic
Armature
Current
Bi-Metal
Lug
Screw
Load
Te r m i n a l
Magnetic
Pole Piece
Contac t
Line
Contac t
Clip