HR77B SERIES ISOLATING FUSE-SWICTCH
Specification
Rated working current(A)
160
250
400
630
Rated heating current(A)
160
250
400
630
Suitable fuse size
00
1
2
3
Current voltage
AC,50Hz
AC,50Hz
AC,50Hz
AC,50Hz
Rated voltage(V)
690
500
400
690
500
400
690
500
400
690
500
400
Rated insulation voltage(V)
800
800
800
800
Working frequency endurable voltage(V)
3000
3000
3000
3000
Using method
AC-21B(690V)
AC-21B(690V)
AC-21B(690V)
AC-21B(690V)
AC-22B(500V)
AC-22B(500V)
AC-22B(500V)
AC-22B(500V)
AC-23B(400V)
AC-23B(400V)
AC-23B(400V)
AC-23B(400V)
Rated monnection capacity
725V,240A
725V,375A
725V,600A
725V,945A
525V,480A
525V,750A
525V,1200A
525V,1890A
420V,1600A
420V,2500A
420V,4000A
420V,63000A
Rated start break capacity
725V,240A
725V,375A
725V,600A
725V,945A
525V,480A
525V,750A
525V,1200A
525V,1890A
420V,1280A
420V,2000A
420V,3200A
420V,5040A
Rated short circuit current (KA)
50
120
120
50
120
120
50
120
120
50
120
120
Fuse consumption rate(W)
12
23
34
48
Swich and suitable fuse
Conventional free air heating current(A)
Fuse size
Rated current of fuse body(A)
160
00
4,6,10,16,20,25,32,35 40,50,63,80,100,125,160
200
1
80,100,125,160,200,224,250
400
2
125,160,200,224,250,300,315,355,400
630
3
4,6,10,16,425,500,630
Dimensions
IR17-160
A
B
C
D
E
F
G
H
K
L
M
O
P
Q
IR17-250
106
200
83
45
47.5
177
60
155
109
181
103
205
110
17
IR17-400
185
315
112.5
66
199
84
220
70
1025
115
294
183
20
IR17-630
210
351
128
80
224
92
249
51.5
124
131
339
221
25
256
351
142.5
94.5
270
98.5
259
48
127.5
139.5
360
211
28
 

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