Instruction Book
Effective: February 2007
Page 1
I.B. 8295A61H07
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www.EatonElectrical.com
SECTION 1: INTRODUCTION
The purpose of this book is to provide instructions for
unpacking, storage, use, operation and maintenance of
Type VCP-WR Vacuum Circuit Breakers. VCP-WR is a
vacuum interrupting element designed for value added
construction. The VCP-WR Red Line family of circuit
breaker elements is comprised of three element types
(Series 18, Series 20 and Series 29). The nominal
widths are 18 inches for Series 18, 20 inches for Series
20 and 29 inches for Series 29. Any one of the three
available elements can be used as a retrofitting drawout
breaker when the customer provides and combines the
appropriate cell interface, truck, levering mechanism,
secondary connections, interlocks and other accessory
items with the VCP-WR element. VCP-WR elements
can also be used for fixed breaker applications with
others responsible for all required interfaces.
WARNING
SATISFACTORY PERFORMANCE OF THESE
BREAKERS IS CONTINGENT UPON PROPER
APPLICATION, CORRECT INSTALLATION AND
ADEQUATE MAINTENANCE. THIS INSTRUCTION
BOOK MUST BE CAREFULLY READ AND
FOLLOWED IN ORDER TO OBTAIN OPTIMUM
PERFORMANCE FOR LONG USEFUL LIFE OF THE
CIRCUIT BREAKERS.
TYPE VCP-WR BREAKERS ARE PROTECTIVE
DEVICES, AS SUCH, THEY ARE MAXIMUM RATED
DEVICES. THEREFORE, THEY SHOULD NOT
UNDER ANY CIRCUMSTANCES BE APPLIED OUT-
SIDE THEIR NAMEPLATE RATINGS.
1-1 TYPE VCP-WR (RED LINE SERIES) RATINGS
T a b l e 1 . 1 V C P - W R R a t i n g s
Identification
Rated Values
Related Required Capabilities
Current
Current Values
Voltage
Insulation Level
Rated Withstand
Test Voltage
Maxi-
mum
Sym.
Inter-
rupting
Capability
3 Sec.
Short
Time
Current
Carrying
Capability
Closing
and
Latching
Capability
(Momen-
tary)
K Times Rated
Short Circuit
Current
KI
Circuit
Breaker
Type
Series
Width
Rated
Contin-
uous
Current
at
60 Hz
Amps
Rated
Short
Circuit
Current
(at
Rated
Max.
kV)
I
kA rms
Nominal
Voltage
Class
kV
Class
Nominal
3-Phase
MVA
Class
MVA
Class
Rated
Max.
Voltage
E
kV rms
Rated
Voltage
Range
Factor
K
Low
Fre-
quencey
kV rms
Impulse
kV Crest
Rated
Inter-
rupting
Time
Cycles
Rated
Permis-
sible
Tripping
Delay
Y
Sec.
Rated
Max.
Voltage
Divided
by K
E/K
kV rms kA rms
kA rms
2.7 K
Times
Rated
Short
Circuit
Current
kA Crest
VCP-WR Vacuum Circuit Breaker
50 VCP-WR 250
18, 20, 29
18, 20, 29
29
1200
2000
3000
29
4.16
250
4.76
1.24
19
60
5
2
3.85
36
36
97
50 VCP-WR 350
20, 29
20, 29
29
1200
2000
3000
41
4.16
350
4.76
1.19
19
60
5
2
4.0
49
49
132
75 VCP-WR 500
18, 29
18, 29
29
1200
2000
3000
33
7.2
500
8.25
1.25
36
95
5
2
6.6
41
41
111
150 VCP-WR 500
18
18, 29
18, 29
29
600
1200
2000
3000
18
13.8
500
15
1.30
36
95
5
2
11.5
23
23
62
150 VCP-WR 750
18, 29
18, 29
29
1200
2000
3000
28
13.8
750
15
1.30
36
95
5
2
11.5
36
36
97
150 VCP-WR 1000 29
29
29
1200
2000
3000
37
13.8
1000
15
1.30
36
95
5
2
11.5
48
48
130
150 VCP-WR 1500 29
29
29
1200
2000
3000
63
13.8
1600
or
1500
15
1.0
36
95
5
2
15.0
63
63
170
Summary of Contents for Cutler-Hammer VCP-WR Series
Page 2: ......
