Drilling plan
Conductor connection procedure for front connected types
Q
M12x55
42.0~68.0Nm
5
9
19
Q
Breaker
mounting
Flat
screw
bar
D
6
7
600%
0.7
40
sec
1.0
I
P
Percentage of I
2
I
T
P.T.A
40
sec
I
G
I
= 0.1...0.4 x In
G
T
G
T
= 0.1...0.8 at I
G
G
Percentage of I
n
T
G.F.T.
I
1
I
1
I
2
I
3
T
1
T
2
I
o
I
n
I
2
I
3
T
1
T
2
short time
region
(STD)
instantaneous
region
(INST)
overload
region
=0.8...1 Io x In
=5...30 at 600% I1
=2...10 x Io x Ict
=2...10 x Io x Ict
=0.1...0.3 at I2
3
6
9
12
2
4
6
8
10
I
2
x I
0
0.8
0.85
0.9
0.95
1.0
I
1
5
10
15
20
30
T
1
0.1
0.15
0.2
0.25
0.3
SEC
T
2
LONG TIME
SHORT TIME
INSTANTANEOUS
TIME
SETTING
CURR.
SETTING
SHORT TIME I t
2
OFF ON
T SEC
2
at 10 x I
0
TEST IN
SEC
at 6 x I1
RATED CUR. (A)
x I
0
CT RATED CURRENT
I
A
n
1250
T
I
I
G
I
1
T
1
I
2
T
2
I
3
T
G
I
3
BASE CUR.
A
I
C
1250
xI
0
I
P
= 0.7...1.0 x I1
T
P
= 40 secs (fixed)
Io = Base current setting
I1 = LTD pick up
T1= LTD setting
I2 = STD pick up
T2 = STD setting
I3 = INST pick up
(LTD)
Percent rated current of base current Io
Ground fault
PRE TRIP ALARM
0.7
0.8
0.9
1.0
x I1
I
P
I
P
I
G
GROUND FAULT
0.1
0.2
0.3
0.4
x In
I
G
0.1
0.2
0.3
0.4
SEC
T
G
0.5
T
G
Time / Current characteristic curves and adjustments
10
Pre trip alarm
11
Conductor
(not supplied)
19
D
Front connection
Panel cut-out
Conductor connection procedure for rear connected types
Characteristic curves and adjustments for Pre trip alarm and Ground fault (Optional)
Conductor connection procedure for plug-in types
M12x55
42.0~68.0Nm
Plug-in mounting block
Mounting angle
(not supplied)
Conductor
(not supplied)
Rear connection
X
Y
3P
4P
70
9
113
296
70
70
230
300
o
226
19
15 for accessory wiring when necessary
4P
3P
81
R6
Y
X
Mounting angle
9
3P
4P
Y
Y
X
X
Turn the screw to position
UN-LOCK
