'
.I
t .,.
I
I
I NSTRUCT I ONS
fOR THE I NSTALLAT I ON
A�O
OPERAT I ON
OF
.
ALL I S-CHAU'\ERS
TYPE
1 1 LA1 1
LOW VOLTAGE A I R
C I RCU I T
BREAK�RS
AND
AUX I L I ARY
.
m_
T I ON
AND I NS PE CT I ON
A .
I NTRODUCT I ON T he
type "LA"
a i r
� J rcu i t
b reake r s may
be
f
u
r
n
i
s
he
d
fo
r
m
o
u
n
t i
n
g
i n
any
one
of t h re-e ways . 'They may
be
used I n
meta l enc l osed sw i tch
gea r of
t he
d rawou t t ype . I n I nd i v i d ua l enc l os u res
(
p
u l
l
o
u t t ype) ,
or for
s t u t l on,• ry moun t i ng I n
a c us tome r ' s own
enc l os i ng
c� se
or
s
w
i
t
ch
b
o
a
r
d
.
A l l
"LA" l.> reake rs are
c
omp
l
e
t
e l
y
a
s
s
emb l e
d
,
tes t ed ,
and ca l i b r a ted a t
t he h
c
tor
y
i n
a
v c r p ca l
pos i t i on
a
n
d
mus t
be s o I ns ta l l ed to operate p rope r l y .
C u s t ome r ' s
p r i ma ,· y
connec t i ons
shou l d
be adequ a t e l y
b r a c ed aga i ns t t h e ef fec t s of
s hor t
c i r c u i t
c
u
r
r
en
t
s to preven t
o
ver
s
t
res s
i
n
g
t he b
r
e
ak
Q
r
t e rm i na l s .
B .
WfiRRANTY
A l l i s -Cha l me rs
1 1LA1 1
a
i r
c i rcu i t
b reakers
a re
wa r ran ted to
be
f ree-of
defe
c
t
s I n m
a
te
r
i
a l
and
wo r kma ns h i p
for a
p�r i od
of
one y e a r
a f ter
de l i ve r y
to
t he
or i g i na l
p
u
rch
a
s
e r
.
Th i s wa r ran t y
i s l i m i ted t o t h e f u rn i s h �
of
any
pa r t
wh i ch to
ou r
s
a
t
i
s
fact
i
on
has been
proven defec t i ve . A I
l i s
Cha l me r s w i l l
not i n
a n y case
as s ume
res pons i b i l i ty
f
o
r
a l l i ed equ i pmen t
o
f any
k i nd .
C .
R E C E I V I NG
AND
I NS PE CT I ON
FOR
DAMAGE
I mmed i a te l y upon rece i pt o f th i s
equ i pment ,
c
a
r
e
f
u
l
l
y
remove a l l pack i ng t races
and exam i ne pa r t s ,
c
he
c
k
i
ng
them
aga l n$ t
the
p
i
c
k
i
ng
l i s t
a nd
not i ng any d
a
m
a
ge
s
I nc u r red I n t ra ns i t .
I f s uch
i
s d
i
s
c
l
os
e
d , a
damage
c l a i m
s hou l d be
f
i
l
e
d
at
onc$ w
i
t
h
the
t ransport at i on
cowpany �nd
A l l l s •Cha l mers not i f i ed .
'
O .
CAUT I ONS TO BE OBSERVED
I N TH E
I NSTALLAT I ON
AND
OPERAT ! ON OF
1 1LA1 1
BREAKERS
1 . Read l ns t r cc t i on
Book
before
I ns t a l l i n g
o r
m
a
k
i n
g
any changes or
adj us tments on the b reake r .
2 .
As
t he c l os i n g
s p
r
i
n
gs
on
s tored-en e rgy
b reake rs
may be
cha rged
I n
e i ther
the
b reake r
open
or
c l os ed pos i t i on ,
�x t reme care
s hou l d
be
tt
k
e
n
to
d i 5 charge
the
s
p
r
i
n
g
s
be f or e
work i n�
o
n
the breake r .
3 .
When c l os i ng manua l l y-ope ra ted
b r e a ke rs ,
a
l
w
�
y
s
g ra s p c l os i n g hand l e
f i rm i y u n t i
I
i t
i s
retu rned t o
t he norma l
v
e
r
t
i
c
a
l
p
o
s
i
t i
on
.
4 � Check
cur ren t r
a
t i
n
g
s
and
s
e
r
i
a
l
numbers
a
g
a
i
n
s
t s i ng l e l i ne
d
i
a
g
r
a
m
to
a
s
s
u
r
e
that
b
re
a
ke
r
s
are p roper l y l oca ted
) n
s
w
i
t
c
h
ge
a
r
a t
•
i
n
s
U I I a t
I
on .
5 . Check
the
a
l
i
g
n
m
en
t of
the
s econ d a ry
d i sconnec t f
i
n g
e
r
s to ens u r e
aga i ns t m i s a l i gnment
d
ue to
pos s i b l e
d i s tor t i on
o f f
i
ng
er
s
d
u r
i n
g
� h l pment
a nd hagd l i n g .
i
6 .
Once
t
h
e
b reake r
I s
en
e
r
g
i
ze
d
,
I t
s hou l d
not be
touched ,
excep t for
ope ra t i ng ,
s i nce
mos t
of the
c
o
m
po
n
e
n
t pa r t s : a re
a l � o energ i zed .
- I -
Summary of Contents for LA-1600
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