164 / 248
559E4100.indd
Wiring diagrams
Compact NSX100 to 630
Fixed circuit breakers
Micrologic A or E
A/E
Communication
H(WH), L(BL): data
- (BK), + (RD): 24 V DC power supply
A/E
ZSI (Zone Selective Interlocking)
Z1: ZSI OUT SOURCE
Z2: ZSI OUT
Z3: ZSI IN SOURCE
Z4: ZSI IN ST (short time)
Z5: ZSI IN GF (ground fault)
Note:
Z3, Z4, Z5 for NSX400/630 only.
A/E
ENCT: external neutral current transformer:
- shielded cable with 1 twisted pair (T1, T2)
- shielding earthed at one end only (CT end).
Connection L = 30 cm max.
- maximum length of 10 metres
- cable size 0.4 to 1.5 mm
2
- recommended cable: Belden 8441 or equivalent.
E
ENVT: external neutral voltage tap for connection to the
neutral via a 3P circuit breaker.
Remote operation
MN:
or
undervoltage release
MX:
shunt release
Motor mechanism (MT)
A4:
opening order
A2:
closing order
B4, A1:
power supply to motor mechanism
L1:
manual position (manu)
B2:
SDE interlocking (mandatory for correct operation)
BPO:
opening pushbutton
BPF:
closing pushbutton
Communicating motor mechanism (MTc)
B4, A1:
motor mechanism power supply
BSCM:
breaker status and control module
Power
Micrologic
Remote operation
DB115707
+ -
L
H
Motor
m
e
c
h
a
nis
m
(MT)
Co
mm
uni
ca
ting
m
otor
m
e
c
h
a
nis
m
(MT
c
)
BPO BPF
D
2
C
2
A
4
A2
B4
MN M
X
D1
C1
A
1
B
2
S
DE
S
DE
84
8
2
81
L1
a
(-)
ma
nu
a
(+)
a
(+)
a
(-)
ou
0 I
a
uto
ma
nu
Z
2
Z1
Upstre
am
CB
Z1
Z
2
Z3
Z4
Z5
Z3
Z4
Z5
Downstre
am
CB
Z1
Z
2
Z3
Z4
Z5
T1
T
2
N L1 L
2
L3
Q
I
U
+ -
L
H
NS
X
c
ord
3
P or 4P
3
P + N
N L1 L
2
L3
EN
V
T
Q
T1
T
2
H
2
H1
I U
ENCT
Z
2
Z1
Z3
Z4
Z5
T1
T
2
B4
A
1
a
(
22
0/
2
40
V
)
a
0 I
a
uto
ma
nu
NS
X
c
ord
B
S
CM
D-2
version: 1.0