50
Circuit
breaker
type
SDV7-
MA
Rated
maximum
voltage
Rated withstand
voltages
Rated
short-
circuit and
short-time
current
Rated
interrupting
time
Rated
continuous
current
Rated transient
recovery voltage
1
Rated
permissible
tripping
delay time
Y
Rated
closing
and
latching
current
Lightning
impulse
(BIL)
Power
frequency
u
c
TRV
peak
value
t
3
time
to
voltage
u
c
kV, rms
kV
2
kV
kA, rms
ms/cycles
A, rms
kV
μs
sec
kA, peak
15.5-20
15.5
110/142
50
20
50/3
1,200, 2,000
29.2
32
2
52
15.5-25
15.5
110/142
50
25
50/3
1,200, 2,000
29.2
32
2
65
15.5-
31.5
15.5
110/142
50
31.5
50/3
1,200, 2,000,
3,000
29.2
32
2
82
15.5-40
15.5
110/142
50
40
50/3
1,200, 2,000,
3,000
29.2
32
2
104
27.6-20
27.6
150/194
60
20
50/3
1,200, 2,000
52.1
45
2
52
27.6-25
27.6
150/194
60
25
50/3
1,200, 2,000
52.1
45
2
65
38.0-20
38.0
200/258
80
20
50/3
1,200, 2,000,
2,500
71.7
59
2
52
38.0-25
38.0
200/258
80
25
50/3
1,200, 2,000,
2,500
71.7
59
2
65
38.0-
31.5
38.0
200/258
80
31.5
50/3
1,200, 2,000,
2,500
71.7
59
2
82
38.0-40
38.0
200/258
80
40
50/3
1,200, 2,000,
2,500
71.7
59
2
104
Footnotes:
1.
TRV values are in accord with IEEE C37.06-2009. TRV peak value u
c
is roughly equal to historic E
2
value in ANSI C37.06-2000.
Value t
3
, time to voltage u
c
, is approximately 1/1.138 times the T
2
value in ANSI C37.06-2000.
2.
First value is full-wave impulse withstand circuit breaker open or closed. Second value is chopped-wave impulse withstand, applicable only with
circuit breaker closed.
Table 10: Technical ratings
Table 11: Control data
Type auxiliary
switch
Continuous current
A
Control circuit voltage
120 Vac
240 Vac
48 Vdc
125 Vdc
250 Vdc
Circuit breaker
auxiliary switch
10
Non-inductive circuit interrupting capacity in A
10
5
10
9.6
4.8
Inductive circuit interrupting capacity in A
6
3
10
6
3
Table 12: Interrupting capacity auxiliary switch contacts
Footnotes:
1.
If controller power fails, capacitors retain
sufficient charge to open circuit breaker within
300 seconds, with minimum open command
duration 100 ms.
2.
Capacitors discharge to 10 V or less within five
minutes after disconnecting plug 105.2.
3.
Capacitor charging time approximately 30-35
seconds from complete discharge, approximately
12 seconds after OPEN-CLOSE-OPEN sequence.
4.
On initial energization, power demand is
approximately 100 W, declining to approximately
20 W when capacitors are fully charged. When the
circuit breaker operates (open or close), power
demand again increases to approximately 100 W,
declining to approximately 20 W when capacitors
are fully charged.
Electronic
controller
power
supply
Input
voltage
range
Input
power
4
Controller output
Capacitor
voltage
2,3
Close
Open
28-56 Vdc
80 W
4
40-55 A
10-15 A
160 Vdc
95-250 Vdc/
100-254 Vac
60 W/60 VA
4
40-55 A
10-15 A
160 Vdc
Binary
inputs
(close and
open
commands)
Low range model
≥
17 Vdc or 17 Vac
Recommended
duration ≥ 100 ms
High range model
≥
69 Vdc or 53 Vac
Recommended
duration ≥ 100 ms
