Powered by Safety
®
14
Equipment Description
01.4IB.77000B
PowlVac-ND® Vacuum Circuit Breaker
Figure 6
Typical AC/DC Control Scheme
To Rated
Control Power
9
9
LS
M1
125VDC/120VAC
M
1
2
M1
17
17
9
Trip
18
13
52
a
52
a
1
2
5
6
18
T
13
125VDC
TC
1
2
14
14
To Rated
Control Power
To Rated
Control Power
Close
11
11
J
LS
12
7
1
4
Y
11
J
Y1
LCS
C
NO
NC
12
J
E
E
LS
F
F
7
8
C1
1
2
A
B
52
b
125VDC
125VDC
CC
Y
LS
12
K
10
10
RES
52
a
52
a
52
b
52
b
1
2
3
5
7
4
6
8
1
3
5
7
2
4
6
8
9
10
3
4
13
14
12
11
18
16
17
15
52
a
52
b
15
19
21
23
16
20
22
24
15
19
16
20
Pins Not Used
Pins Not Used
LEGEND
LS
-- Spring Charge Limit Switch
(Shown with Spring Discharged)
>>
LCS -- Latch Check Switch
(Shown with Spring Discharged)
Y
-- Anti-Pump Relay
TC
-- Breaker Trip Coil
CC -- Breaker Close Coil
M
-- Charging Motor
-- Breaker Auxiliary Contact
(Normally Open)
-- Breaker Auxiliary Contact
(Normally Closed)
SD -- Breaker Secondary Disconnect
52
a
52
b
NO -- Normally Open
NC -- Normally Closed
C
-- Common
RES -- Voltage Dropping Resistor
(250VDC only)
