![background image](http://html1.mh-extra.com/html/eaton/b20b-vr-15-500/b20b-vr-15-500_instructions-manual_524743007.webp)
For more information visit: www.EatonElectrical.com
Instructions for VR-Series
Replacement Breakers for
Westinghouse Type B20B/B22B
I.B. 94A1994R01
Page 5
Effective: April 2005
IB01301018E
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
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.
Table 1.1 - B20B / B22B-VR Vacuum Circuit Breaker Availability and Interchangeability
WARNING
l
a
n
i
m
o
N
e
g
a
t
l
o
V
)
V
k
(
s
s
a
l
C
g
n
i
t
s
i
x
E
A
V
M
g
n
i
t
a
R
d
e
t
a
R
s
u
o
u
n
i
t
n
o
C
t
a
t
n
e
r
r
u
C
z
H
0
6
)
s
p
m
A
(
A
V
M
n
o
i
t
a
n
g
i
s
e
D
s
e
i
r
e
S
-
R
V
f
o
r
e
k
a
e
r
B
d
e
t
a
R
e
g
a
t
l
o
V
r
o
t
c
a
F
K
d
n
a
t
s
h
t
i
W
d
e
t
a
R
e
g
a
t
l
o
V
t
s
e
T
I
S
N
A
e
s
l
u
p
m
I
.
q
e
r
F
w
o
L
t
s
e
r
C
V
k
S
M
R
V
k
-
t
r
o
h
S
d
e
t
a
R
S
M
R
A
k
t
i
u
c
r
i
C
V
k
x
a
M
d
e
t
a
R
t
a
m
u
m
i
x
a
M
.
m
y
S
g
n
i
t
p
u
r
r
e
t
n
I
s
e
i
t
i
l
i
b
a
p
a
C
S
M
R
A
k
d
n
a
g
n
i
s
o
l
C
/
g
n
i
h
c
t
a
L
y
r
a
t
n
e
m
o
M
s
e
i
t
i
l
i
b
a
p
a
C
k
a
e
P
/
S
M
R
A
k
6
1
.
4
0
5
1
0
0
2
1
0
5
2
4
2
.
1
0
6
9
1
9
2
6
3
7
9
/
8
5
2
.
7
0
5
2
0
0
2
1
0
0
5
5
2
.
1
5
9
6
3
3
3
1
4
1
1
1
/
6
6
8
.
3
1
0
0
5
0
0
2
1
0
0
5
3
.
1
5
9
6
3
8
1
3
2
2
6
/
7
3
8
.
3
1
0
0
5
0
0
2
1
U
0
0
5
3
.
1
5
9
6
3
7
2
6
3
7
9
/
8
5