Table of Contents
Advertisement
SECTION 1: INTRODUCTION
The purpose of this book is to provide instructions for receiving and
handling, storage, installation, operation and maintenance of B20B /
B22B Type Vacuum Replacement Circuit Breakers (also referred to
as VR-Series). The vacuum unit replacement breakers are
designed to be used in existing Westinghouse type B20B / B22B
metal-enclosed switchgear. VR-Series Circuit Breakers provide
reliable control, protection and performance, with ease of handling
and maintenance. Like ratings are interchangeable with each other.
1.1 AVAILABLE B20B / B22B-VR BREAKERS
Refer to Table 1.1
R
N
o
m
n i
l a
E
i x
t s
n i
g
C
o
t n
V
l o
a t
g
e
M
V
A
C
r u
C
a l
s
s
k (
) V
R
t a
n i
g
6
A (
. 4
1
6
1
5
0
. 7
2
2
5
0
1
. 3
8
5
0
0
1
. 3
8
5
0
0
Table 1.1 - B20B / B22B-VR Vacuum Circuit Breaker Availability and Interchangeability
IB01301018E
Instructions for VR-Series
Replacement Breakers for
Westinghouse Type B20B/B22B
R
a
a
e t
d
M
V
A
V
l o
n i
u
o
u
s
D
e
s
g i
n
t a
o i
n
F
a
e r
t n
t a
f o
V
R
S -
r e
e i
s
0
H
z
B
e r
a
k
r e
m
p
) s
1
2
0
0
2
5
0
. 1
1
2
0
0
5
0
0
. 1
1
2
0
0
5
0
0
. 1
1
2
0
0
5
0
0
U
. 1
For more information visit: www.EatonElectrical.com
SATISFACTORY PERFORMANCE OF THESE BREAKERS IS
CONTIGENT UPON PROPER APPLICATION, CORRECT INSTALLA-
TION 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.
VR-SERIES BREAKERS ARE PROTECTIVE DEVICES, AS SUCH,
THEY ARE MAXIMUM RATED DEVICES. THEREFORE, THEY
SHOULD NOT UNDER ANY CIRCUMSTANCE BE APPLIED
OUTSIDE THEIR NAMEPLATE RATINGS.
e t
d
R
a
e t
d
W
i
h t
s
a t
n
d
a t
g
e
A
N
I S
T
e
t s
V
l o
a t
g
e
t c
r o
L
o
w
F
e r
. q
I
m
p
u
s l
e
K
k
V
R
M
S
k
V
C
e r
t s
2
4
1
9
6
0
2
5
3
6
9
5
3
3
6
9
5
3
3
6
9
5
I.B. 94A1994R01
Effective: April 2005
WARNING
M
a
i x
m
u
S
y
m
.
R
a
e t
d
S
h
o
- t r
I
t n
r e
u r
t p
n i
i C
c r
u
t i
k
A
R
M
S
C
a
p
a
i b
t i l
t a
R
a
e t
d
M
a
x
k
V
k
A
R
M
S
2
9
3
6
3
3
4
1
1
8
2
3
2
7
3
6
Page 5
m
C
o l
s
n i
g
a
n
d
L
a
c t
h
n i
g
/
g
M
o
m
e
n
a t
y r
e i
s
C
a
p
a
i b
t i l
e i
s
k
A
R
M
S
P /
e
a
k
5
8
/
9
7
6
6
/
1
1
1
3
7
/
6
2
5
8
/
9
7
Advertisement
Table of Contents
