54
Air Circuit Breakers
BT2 series
断路器二次回路接线图
WIRING DIAGRAM OF SECONDARY CIRCUIT
Connec tion
indication
Tes t
ind ication
76
Wir
ing diag
ram of the secondar
y circuit of BT2-1600 circuit break
ers
equipped with type L25, M25, M26, P25 and P26 intelligent controllers (OCR)
Spaciel Note:
W
he
n
th
e
vo
lta
ge
o
f a
ux
ili
ar
y
po
w
er
s
up
pl
y
is
A
C
23
0V
o
r
A
C
40
0V
, p
ow
er
s
up
pl
y
m
od
ul
e
of
B
T
2-
16
00
in
te
lli
ge
nt
s
ho
ul
d
be
tr
an
sf
or
m
ed
in
to
D
C
24
V
in
c
on
ne
ct
io
n
w
ith
te
rm
in
al
s
of
1
a
nd
2
.
When the v
oltage of po
w
er supply is DC110V or DC220V
, DC po
w
er supply module should be tr
ansf
or
med into DC24V in connection with ter
minals of 1 and 2.
When the v
oltage of auxiliar
y po
w
er supply is DC24V
, DC24V po
w
er supply module should be tr
ansf
or
med into DC24V in connection with ter
mimnals 1 and 2.
Main circuit
Ov
er-current release
Po
wer-dr
iven
switching-off
Po
wer-dr
iven
switting-on
A
uxiliar
y s
witch
Location
indication
Wiring diagram
Wiring diagram of secondary circuit