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Electrical ratings
Table 1. Ratings and Characteristics per IEEE Std C37.71™-
2001 standard
Rated Voltage
Maximum rating phase-to-phase
Maximum rating phase-to-ground
Power Frequency
Current Rating (Continuous)
Loadbreak Capability @ 0.75 Power Factor
Factor
First peak min.
Time-to-peak max.
Magnetizing
Cable Charging
Fault Withstand Current (Momentary)
10 cycle symmetric rms
10 cycle asymmetric rms
10 cycle peak
Fault Withstand (Short-time)
1s rms
2s rms
Fault Close and Latch
10 cycle symmetric rms
10 cycle asymmetric rms
10 cycle peak
Impulse Withstand Voltage (1.2/50µs)
To ground and between phases
Across open contacts
Power Frequency (1 minute)
To ground and between phases
Across open contacts
DC Withstand (15 minutes)
To ground and between phases
Across open contacts
Corona (Extinction)
Temperature Maximum at 630 A
Temp. Rise Above Ambient Air at 630
A (Max.)
Mechanical Life (Minimum Operations):
Table 3. Dimensional Information for Figures 2 and 3 (inches/mm)
No. of
Decks/
kV Ratings
Phases
& Blade Type
1
All
2
All
12 kA T Blade 12
3
& 16 kA Selector,
Straight, & V Blade
16 kA T Blade Only
3
2
SECTIONALIZING SWITCH INSTALLATION INSTRUCTIONS MN800002EN March 2016
Units
12.5 kA Rated Switches
To IEEE Std C37.71™ - 2001
standard
kV
15.5
27.8
38
kV
9
17.2
21.9
Hz
60
60
60
A
630
300
200
A
630
300
200
kV
4
7.6
13
µs
180
290
424
A
22
10.5
7
A
10
25
40
kA
12.5
12.5
12.5
kA
18.6
18.6
18.6
kA
32.5
32.5
32.5
kA
12.5
12.5
12.5
kA
12.5
12.5
12.5
kA
12.5
12.5
12.5
kA
18.6
18.6
18.6
kA
32.5
32.5
32.5
kV
95
125
150
kV
95
125
150
kV
35
60
70
kV
35
60
70
kV
53
78
103
kV
53
78
103
kV
26
26
26
°C
75
75
75
°K
35
35
35
5,000
5,000
5,000
A
Horizontal
Vertical
Mount
Mount
B
8.05"
13.30"
–
204 mm
338 mm
12.14"
17.39"
4.09"
308 mm
442 mm
104
16.23"
21.48"
4.09"
412 mm
546 mm
104 mm
16.63"
–
4.09"
422 mm
104 mm
Table 2. Ratings and Characteristics per IEC 60265-1 –
1998
Switch Rating
Rating Voltage
Maximum rating phase-to-phase
Maximum rating phase-to-earth
Power Frequency
Current Rating (Continuous)
Mainly Active Load Breaking Current A
First peak min.
Time-to-peak max.
Closed Loop Breaking Current
No-Load Transformer Breaking
Current
Line Charging Current
Cable Charging Current
Earth Fault Switching Current
Cable and Line Charging Under Earth
Fault
Short-time Withstand Current
1s rms
2s rms
3s rms
Short-circuit Making Current
12 cycle symmetric rms (min.)
12 cycle asymmetric rms (min.)
12 cycle max. peak (min.)
Impulse Withstand Voltage (1.2/50µs)
To earth and between phases
Across open contacts (isolating
distance)
Power Frequency (1 minute)
To earth and between phases
Across open contacts
(isolating distance)
Corona (Extinction)
Temperature Maximum at 630 A
Temp. Rise Above Ambient Air at
630 A (Max.)
Mechanical Life (Minimum
Operations):
D
Horizontal
Vertical
Mount
Mount
C
–
7.16"
12.41"
182 mm
315 mm
–
7.16"
12.41"
182 mm
315 mm
4.09"
7.16"
12.41"
104 mm
182 mm
315 mm
4.09"
7.56"
–
104 mm
192 mm
Units
16 kA Rated Switches
To IEC 60265-1 - 1998
kV
15
24
kV
15.5
24.9
kV
9
14.4
Hz
50/60
50/60
A
630
400
630
400
kV
25.7
41
µs
72
88
A
630
400
A
6.3
4
A
1
1.5
A
10
17
A
1
10
A
17.5
17
kA
20
20
kA
16
16
kA
13
13
kA
16
16
kA
24.8
24.8
kA
41.6
41.6
kV
170
170
kV
195
195
kV
70
70
kV
80
80
kV
26
26
°C
90
90
°K
50
50
5,000
5,000
E
F
Horizontal
Vertical
Horizontal
Mount
Mount
Mount
0.75"
6.00"
8.46"
19 mm
152 mm
215 mm
0.75"
6.00"
12.46"
19 mm
152 mm
316 mm
0.75"
6.00"
16.46"
19 mm
152 mm
418 mm
0.75"
–
16.86"
19 mm
428 mm
36
38
21.9
50/60
200
200
65.1
108
200
2
2
25
8
26
20
16
13
16
24.8
41.6
170
195
70
80
26
90
50
5,000
Vertical
Mount
13.71"
348 mm
17.71"
450 mm
21.71"
551 mm
–
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