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D-4
Compact NS630b to 1600
Plug-in / withdrawable circuit breakers
MN / MX
MT2 MT1
D2
C2
A4
A2
B4
D1
C1
A1
The diagram is shown with circuits de-energised,
all devices open, connected and charged and relays
in the normal position.
A : digital ammeter.
P : A + power meter + additional protection.
Com UC1 UC2
UC3 M6C / CAF2
E5 E6 Z5 M1 M2 M3 F2+
Q3
544
E3 E4 Z3 Z4 T3 T4 VN
Q2
542
E1 E2 Z1 Z2 T1 T2 F1 – Q1
541
Power
Control unit
Remote operation
Basic A E P
Control unit
Remote operation
b
b b b
Com
: E1-E6 communication
b b b
UC1
: Z1-Z5 zone selective interlocking:
Z1 = ZSI OUT SOURCE
Z2 = ZSI OUT; Z3 ZSI IN SOURCE
Z4 = ZSI IN ST (short time)
Z5 = ZSI IN GF (earth fault)
b
b
M1 = Vigi module input
(Micrologic 7)
b b b
b
UC2
: T1, T2, T3, T4 = external neutral;
M2, M3 = Vigi module input
(Micrologic 7)
b b
b
b
b
UC3
: F2+, F1- external 24 V DC
power supply
VN external voltage connector
(must be connected to the neutral
with a 3P circuit breaker)
b
M6C
: 6 programmable contacts (to be
connected to the external module
M6C) ext. 24 V DC power supply
required
Control unit
Remote operation
Terminal-block marking
MN
:
undervoltage release
or
MX
:
shunt release
Motor-mechanism module
(*)
MT2
:
A4
:
electrical opening order
MT1
:
A2
:
electrical closing order
B4, A1
: power supply for control devices
and gear motor (MCH)
(*) Spring-charging motor 440/480 V AC
(380 V motor + additional resistor)
DB128380
A1
CN2
a
- 440/480 V
9 11
B4
R
A2
A4
CN1
a
- 440/480 V
Motor-mechanism
module
DB128378
Power
Upstream cb Downstream cb
24 V DC
Q
Micrologic
M6C
M1
M2
T3
F2+
T2
T1/M3
T4/F1
VN
Z1
Z2
Z3
Z4
Z5
Z1
Z2
Z3
Z4
Z5
Z1
Z2
Z3
Z4
Z5
Q1
Q2
Q3
L2 L3
L1 N
DB128379
or
D2
1D
AT
MN
BPO
A2
A4
BPF
1A
B4
MX
C2
1C
Motor-mechanism
module
Electrical diagrams