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5 Main Technical Performance Indicators
5.1 The main technical performance indicators are shown in Table 3.
Table 3 Main technical performance indicators
Shell frame level rated current
Inm (A)
63
100
250
Product model
H8M-
63S
H8M-
100C H8M-100S
H8M-
100H
H8M-
100U
H8HM-
250C
H8M-
250S
H8M-
250H
H8M-
250U
Rated current In (A)
10,16,20
25,32,40
50,63
16,25,32,40,50,63,80,100
100,125,150,160,175,200,225,250
Number of poles
3
3
4
3
4
3
3
3
4
3
4
3
3
Rated insulation voltage Ui (V) AC 600
AC 800
AC 800
Rated impulse withstand
voltage Uimp (kV)
8
Flashover distance (mm)
≤50(0)*
≤50 (0) *
≤50 (0) *
Rated
ultimate/service
short-circuit
breaking
capacity Ics (kA)
690 V
-
-
5/3
10/5 10/5
-
5/5
10/5
10/5
400 V
35/35
35/35
55/55
85/85 125/
125
35/35
55/55
85/85 125/
125
Operation
performance
(times)
Energizing
8,000
8,000
8,000
De-energizing 20,000
20,000
20,000
Outline dimensions
(mm)
a
75
90 120 90 120
90
90
105 140 105 140 105 105
b
130
155
216
165
240
c
68
68
68
Installation dimensions
(mm)
A
25
30
35
B
111
132
193
126
201
Φ
5
5
5
*
The flashover distance, if zero, shall be indicated when ordering.
