Cut Sheet
Technical Data
Effective: April 1998Page
2
TD.19.02.T.E
Cutler-Hammer
QUICKLAG
T
Industrial Circuit Breakers
QUICKLAG 1-Pole Circuit Breakers, 10-70 Amperes
Curve No. SC-3500-77C
Maximum
Maximum Interrupting Time
(50-70 Amp)
(10-40 Amp)
Interrupting Rating (See Tabulation Above)
Circuit Breaker Time/Current Curves
QUICKLAG
®
1-Pole Circuit Breakers, 10-70 Amperes
For application and coordination purposes only. Based on 40°C
ambient, cold start. Connected with four (4) feet of rated wire (60/75°C)
per terminal. Tested in open air with current in all poles.
Breaker Ratings (UL Listed)
Minimum
Special Low-Magnetic
Type HQP, QC, BAB 15-20A
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
TIME IN SECONDS
1,000
500
300
200
5,000
3,000
2,000
1 HOUR
1 MINUTE
2 HOURS
TIME IN SECONDS
10,000
100
50
30
20
10
5
3
2
1
.5
.3
.2
.1
.05
.03
.02
.01
.005
.003
.002
.001
1,000
500
300
200
5,000
3,000
2,000
1 HOUR
1 MINUTE
2 HOURS
100
80
60
90
70
50
1000
800
600
900
700
500
400
300
200
10,000
8000
6000
9000
7000
5000
4000
3000
2000
100,000
80,000
60,000
90,000
70,000
50,000
40,000
30,000
20,000
10,000
8000
6000
9000
7000
5000
4000
3000
2000
1000
800
600
900
700
500
400
300
200
100
80
60
90
70
50
100,000
80,000
60,000
90,000
70,000
50,000
40,000
30,000
20,000
CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING
CURRENT IN PERCENT OF BREAKER TRIP UNIT RATING
10,000
Breaker
Type
1-Pole
Maximum
Volts
Ac (60 Hz)
Continuous
Amperes
Interrupting Capacity
RMS Symmetrical
Amperes (kA)
HQP, QC, BAB
QCR, QCF
QCGF, QCGFEP➂
QBGF, QBGFEP➂
QPGF, QPGFEP➂
QPHW, QBHW, QCHW
QCHGF, QCHGFEP➂
QBHGF, QBHGFEP➂
QPHGF, QPHGFEP➂
QHPX, QHCX, HBAX
QHPW, QHCW, HBAW
120/240
120/240
120/240
120/240
120/240
120/240
120/240
120/240
120/240
120/240
120/240
10-70
10-60
15-40
15-40
15-40
15-70
15-30
15-30
15-30
15-70
15-30
10
10
10
10
10
22
22
22
22
42
65
Maximum Single-Pole
Trip Times at 25°C➀
➀ Single-pole test data at 25°C based on NEMA procedures
for verifying performance of molded case circuit breakers.
➁ For Special Low-Magnetic Types HQP, QC, BAB.
➂ Time current curves show thermal-magnetic protection.
GF protection has 5ma trip sensitivity. GFEP protection has
30ma trip sensitivity.
Continuous Amperes
Instantaneous Trip Range, Amperes
10-20
25-40
45-60
70
15-20➁
200-400
300-500
450-650
800-1200
125-225