Specifications

14
Circuit Breakers Circuit breakers provide a manual means of energizing and de-
energizing a circuit and overcurrent protection for the connected
circuits. Residential circuit breakers are typically 1-pole, 2-pole,
or 4-pole breakers with current ratings of 225 amps or less and
voltage ratings of 120 volts, 120/240 volts, or 240 volts.
1-Pole Circuit Breaker
From
Power
Source
To Load
2-Pole Circuit Breaker
Mechanical
Link
From
Power
Source
To Load
In addition to standard width QP circuit breakers, Siemens
manufactures a variety of other branch circuit breaker types.
Circuit Breaker
& SPD
1-Pole QP
2-Pole QP
QT Duplex
QT Triplex
GFCI Breaker
AFCI Breaker
15
TEST
TYPE
QAFH
ARC
FAULT
GND
HACR
Circuit Breaker
Combination Ty
AFC
AFCI
O
Interrupting Rating
22kA
120V
Max.
RMS Sym.
50/60 Hz
SWD
40 C
10707150001
TEST
TYPE
QP
F
GFCI Circuit Breaker A ground fault circuit interrupter (GFCI) is required on
certain residential receptacles, such as bathroom receptacles,
receptacles located within six feet of a kitchen sink, and outdoor
receptacles. A ground fault is a condition where current takes
an undesirable path to ground. GFCI devices are designed to
interrupt a circuit when a ground fault occurs. This is necessary
to reduce the shock hazard. Often a GFCI is mounted at the
receptacle. When this is not practical, a Siemens GFCI circuit
breaker can be installed in the load center to provide this
protection.