Full Voltage
Reduced Voltage
Binary-Coded Decimal Usually refers the 8-4-2-1 code where four bits are used to
(BCD) represent decimal digits through 9.
Siemens Combination AFCI
Circuit Breaker
15
TEST
TYPE
QAFH
ARC
FAULT
GND
HACR
Circuit Breaker
Combination Ty
AFC
AFCI O
Interrupting Rating
22kA 120V
Max.
50/60 Hz
SWD
40 C
10707150001
LED A
LED B
Test
Button
Last Known
Trip Condition
LED (A) LED (B)
OFF OFF Overcurrent
ON OFF Arc Fault
ON ON
Arc Fault to
Ground
LED Indicator
Autotransformer type transformer which the secondary coil part the
primary coil.
Arc Fault Circuit circuit breaker designed provide protection from the
Interrupter (AFCI) effects arc fault recognizing the characteristics
unique arcing and de-energizing the circuit when arc
fault detected.
32 16
0
Most Significant Bit (MSB)
2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
Least Significant Bit (LSB)
1 1
0 0
128 1
10010010 Binary 146 Decimal
Decimal
Binary
Power. RMS Sym. Often the secondary voltage adjustable via a
movable tap. Digital equipment uses binary numbers represent
numerical values and the off condition devices.
0 5
0000 0010 0000 0101
Decimal BCD
0
1
2
3
4
5
6
7
8
9
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
Binary Number number made only 1’s and 0’s that represent powers
of two (2).The most effective AFCI circuit breakers are
combination AFCIs which provide protection against all three
known types arc faults
