7
Instruction Booklet
IB131006EN
Effective March 2019
Instructions for installation,
operation, and maintenance of type
VCP-W vacuum circuit breakers
EATON
www.eaton.com
1.3 Type VCP-W vacuum circuit breaker element ratings (Tables 1, 2, 3, 4, 5, and 6)
Table 1. (ANSI Standards
a
) type VCP-W vacuum circuit breaker through 15 kV rated symmetrical current basis.
Identification
Rated values
Circuit
breaker
type
Nominal
voltage
class
Nominal
3-phase
MVA
class
Voltage
Insulation level
Current
Inter-
rupting
time
d
Permis-
sible
tripping
delay
Y
Max.
voltage
divided
by K
E/K
Current values
Max.
voltage
E
Voltage
range
factor
c
K
Withstand test
voltage
Continuous
current
at 60 Hz
Short
circuit
current
(at rated
max. kV)
I
Maximum
symmetrical
interrupting
capability
K times
rated short
circuit
current
ce
Closing &
latching
capability
2.7 K
times
rated
short
circuit
current
Closing &
latching
capability
momentary
1.6 K
times rated
short
circuit
current
Power
frequency
(1 min.)
Impulse
kV
MVA
kV rms
kV rms
Amperes
kA rms
Cycles
Seconds kV rms
kA rms
kA peak
kA rms
50VCPW-
ND250
4.16
250
4.76
1.24
19
60
1200
29
5
2
3.85
36
97
58
50VCP-
W250
4.16
250
4.76
1.24
19
60
1200
2000
3000
29
5
2
3.85
36
97
132
b
58
78
b
50VCP-
W350
4.16
350
4.76
1.19
19
60
1200
2000
3000
41
5
2
4.0
49
132
78
50VCP-
W63 (500)
4.16
500
4.76
1.00
19
60
1200
2000
3000
63
5
2
4.76
63
173
101
75VCP-
W500
7.2
500
8.25
1.25
36
95
1200
2000
3000
33
5
2
6.6
41
111
66
150VCP-
W500
13.8
500
15
1.30
36
95
1200
2000
3000
18
5
2
11.5
23
62
97
b
37
58
b
150VCP-
W750
13.8
750
15
1.30
36
95
1200
2000
3000
28
5
2
11.5
36
97
130
b
58
77
b
150VCP-
W1000
13.8
1000
15
1.30
36
95
1200
2000
3000
37
5
2
11.5
48
130
77
150VCP-
W63(1500)
13.8
1500
15
1.00
36
95
1200
2000
3000
63
5
2
15.0
63
173
101
a
All circuit breakers are tested to 60 Hz; however, they can also be applied at 50 Hz with no derating.
b
Non-standard circuit breakers with high close and latch (momentary). Rating for special applications.
c
Consult the Consulting Application Guide CA08104001E sections 1 and 5 for further information.
d
Optional interrupting time of 3 cycles is available.
e
Also 3-second short time current carrying capability.
