QAC & QAD
Quick-Action Fuses
Applications:
Typical applications include inverters, arc
welders, rectifiers, CNC equipment, battery circuits, and
other protective applications.
Features:
• Axial bolted tag connectors for easy installation
• Large breaking capacity (50kA)
• Low I
2
t value, semiconductor protection balance
can be easily obtained
• Compact and lightweight
• Resistant to repetitive currents
• Excellent current-limiting characteristics
• Low power loss
(125VAC)
QAD 25 (250VAC)
250A
200A
150A
100A
75A
50A
Other Products
1000
800
600
400
200
100
50
4000
2000
(125VAC)
QAC 25 (250VAC)
600A
500A
400A
300A
250A
200A
150A
100A
75A
50A
30A
Current (A)
1000
800
600
400
200
100
80
60
4000
Overcurrent
Protection for
Semiconductor
Elements and Cables
2000
1000
800
600
400
200
100
80
60
(500VAC)
QAC 50 (600VAC)
600A
500A
400A
300A
250A
200A
150A
100A
75A
50A
30A
10ֿ¹
1
Time (sec)
10
10²
10³
10ֿ²
The QAC and QAD product lines feature
axial bolted tag connectors and carry a rated
voltage of up to 600 VAC, 600A max, 50K AIC.
They feature a high current-limiting effect and
superior quick-action fusing performance, excellent
arc-suppressing performance, and reliable breaking
action. Because of their low power loss, they save
energy and also feature low surge voltage at the breaking
point. Superior non-degradation characteristics make it
ideal for motors subject to extreme load variations.
Specifications:
Airpax Corporation
807 Woods Road
Cambridge, MD 21613 USA
Tel: 410.228.1500 Fax: 410.228.3456
286
Other Products
• Rated voltage: 125-600V
AC
• Rated current: 30A-600A
• Breaking capacity: 50kA at 125V
AC,
250V
AC,
500V
AC
and 600 V
AC
• Power loss: 3W-36W
• Connecting bar: 0.012-0.465in
2
(8-300mm
2
)
• I
2
t (A
2
S)X10
3
: Fusing = .013-8.64 ; Operating at
250V
AC
= .31-77.8 ; Operating at 500V
AC
&
500V
AC
= 1.36-154
Ratings & Specifications
Power Loss
I²t(A²s)x10³
Rated
Rated
Breaking
Voltage Current (A) Capacity (W) Connecting Bar Fusing Operating
at V
AC
in²
mm²
50
75
100
150
200
250
30
50
75
125 / 250
V
AC
100
150
200
250
300
400
500
600
30
50
75
100
150
500 / 600
V
AC
200
250
300
400
500
600
50kA
3.0
5.0
6.5
10.0
13.0
16.5
3.0
4.3
7.5
10.0
15.0
20.0
25.0
30.0
35.0
20.0
18.0
3.6
6.0
9.0
12.0
19.5
24.0
30.0
36.0
35.0
33.0
32.0
0.034
0.059
0.155
0.155
0.233
0.372
0.012
0.034
0.059
0.155
0.155
0.233
0.372
0.372
0.465
0.465
0.465
0.012
0.034
0.059
0.155
0.155
0.233
0.372
0.372
0.465
0.465
0.465
22
38
100
100
150
240
8
22
38
100
100
150
240
240
300
300
300
8
22
38
100
100
150
240
240
300
300
300
0.013
0.03
0.053
0.12
0.21
0.32
0.034
0.6
0.15
0.31
0.62
0.96
1.6
2.8
5.04
6.0
8.64
0.04
0.07
0.14
0.28
0.55
1.09
1.75
2.4
4.58
6.41
7.71
1.4
2.4
3.98
7.00
9.45
14.4
0.31
0.54
1.35
2.77
5.54
8.64
14.0
25.2
45.4
54.0
77.8
1.36
2.5
4.89
9.98
19.5
38.7
62.1
85.1
91.6
128.0
154.0
External dimensions: in (mm)
A
B
C
E
W
T
D
Model
QAD25-50
QAD25-75
QAD25-100
QAD25-150
QAD25-200
QAD25-250
QAC25-30
QAC25-50
QAC25-75
QAC25-100
QAC25-150
QAC25-200
QAC25-250
QAC25-300
QAC25-400
QAC25-500
QAC25-600
QAC50-30
QAC50-50
QAC50-75
QAC50-100
QAC50-150
QAC50-200
QAC50-250
QAC50-300
QAC50-400
QAC50-500
QAC50-600
Mounting Hole,
Bolt Size Limit
3.150
(80)
2.283
(58)
1.496
(38)
Ø1.102
(Ø28)
0.866
(22)
0.197
(5)
Ø0.335
(Ø8.5)
≤ 5/16 - 18
≤ M8
3.071
(78)
2.362
(60)
1.496
(38)
Ø1.417
(Ø36)
1.181
(30)
0.276
(7)
Ø0.374
(Ø9.5)
≤ 3/8 - 16
≤ M9
(99)
3.898
(71)
2.795
(38)
1.496
(Ø44)
Ø1.732
(35)
1.378
(9)
0.354
(Ø11.0)
Ø0.433
≤ M11
≤ 3/8 - 16
(117)
4.606
(89)
3.504
(56)
2.205
(Ø36)
Ø1.417
(30)
1.181
(7)
0.276
(Ø9.5)
Ø0.374
≤ M9
≤ 3/8 - 16
(117)
4.606
(89)
3.504
(56)
2.205
(Ø44)
Ø1.732
(35)
1.378
(9)
0.354
(Ø11.0)
Ø0.433
≤ M11
≤ 3/8 - 16
(117)
4.606
(89)
3.504
(56)
2.205
(Ø50)
Ø1.969
(42)
1.654
(9)
0.354
(Ø11.0)
Ø0.433
≤ M11
≤ 3/8 - 16
A
B
D
C
W
T
E
First Decision
Model
QAD 25 - 100
Second Decision
Rated Voltage (V)
Code
Voltage
250 V
AC
500 / 600 V
AC
Third Decision
Rated Current (A)
QAC
Input a value from 30 to 600
Use reference table
“Ratings & Specifications”
QAD
25
50
Other Products
QAC QAD 245-500-5034 02/05
287
Other Products
京公网安备 11010802033920号
EEWORLD
