NF50 AND NF100 CIRCUIT BREAKER QUICK START MANUAL
8
6. INTERNAL CONNECTION DIAGRAM
NF50-SVFU
Power
source side
Load side
electromagnetic
apparatus
Leakage expressed
Test button
ZCT
Sense Degree
Switching Means
Power
source side
Load side
electromagnetic
apparatus
Leakage expressed
Test button
ZCT
Sense Degree
Switching Means
NF100-HRU
ZCT
Leakage expressed
Power source side
electromagnetic
apparatus
Test button
Load side
Sense Degree
Switching Means
7. OPERATING CHARACTERISTIC CURVES
NF50-SVFU
(UL 489)
Min.
Max.(
3A
~
30A
)
Max.(
40A
~
50A
)
Current (% of rated current )
4h
2h
1h
30min
20min
10min
14min
6min
4min
2min
1min
30s
20s
10s
5s
2s
1s
0.5s
0.2s
0.1s
0.05s
0.02s
0.01s
100
200
300 400 500 600 700 1000 1500 2000 3000 4000
135
The extended tripping time
Instantaneous trip
Oper
ating T
ime
NF100-HRU
0.01s
0.02s
0.05s
0.1s
0.2s
0.5s
5s
1s
10s
2s
20s
30s
1min
2min
4min
6min
10min
14min
20min
30min
1h
2h
4h
Min
(UL 489)
Max.
(60
~
100A)
Max.
(50A)
100 135 200
300 400
600
1000 1500 2000
4000
500 700
3000
Current (% of rated current )
Oper
ating T
ime
Mitsubishi Electric Automation, Inc.