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D-2
Compact NS630b to 1600
Fixed circuit breakers
The diagram is shown with circuits de-energised,
all devices open, connected and charged and relays
in the normal position.
E; energy
A : digital ammeter.
P : A + power meter + additional protection.
Power
Control unit
Remote operation
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
DB128373
or
AT
BPO BPF
MN MX
D2
A2
A4
B4
C2
D1
1A
1C
Motor-mechanism
module
Basic A E P Control unit
Remote operation
b
b b b
E1-E6 communication
b b b
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
T1, T2, T3, T4 = external neutral;
b
M2, M3 = Vigi module input
(Micrologic 7)
b b b
F2+, F1– external 24 V DC
power supply
b b
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
MN
:
undervoltage release
or
MX
:
shunt release
Motor-mechanism module
(*)
A4
:
electrical opening order
A2
:
electrical closing order
B4, A1
:
power supply for control devices and gear motor
(*) 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
Electrical diagrams