26
Type
Low-inst
Standard
Mag-Only
(Inst trip only)
Generator
690V
500V
440V
400V
230V
Frame (A)
Rated insulation voltage Ui (V) AC
Number of poles
Automatic tripping
device
Rating (A) and
Inst. (A)
Automatic tripping
device
Rating (A) and
Inst. (A)
Number of poles
Number of poles
Automatic tripping
device
Rating (A) and
Inst. (A)
Number of poles
Automatic tripping
device
Rating (A) and
Inst. (A)
400A
NF400-SEP
200 ~ 400
adjustable
34
Electronic trip relay
Adjustable ampere rating
Adjustable long time delay
operating time, short time delay
pick up and instantaneous
Short time delay pick up current
Variation is within ±15% of
setting current
2 to 10 Ir
200 400-500-600-700-800-
1000-1200-1400-1600-
2000
225 450-562.5-675-787.5-
900-1125-1200-1500-
1800-1350-1575-1800-
2250
250 500-625-750-875-1000-
1250-1500-1750-2000-
2500
300 600-750-900-1050-1200-
1500-1800-2100-2400-
3000
350 700-875-1050-1225-
1400-1750-2100-2450-
2800-3500
400 800-1000-1200-1400-
1600-2000-2400-2800-
3200-4000
Instantaneous pick up current
Variation is within ±15% of
setting current
4 In ~ 16 In
1600 ~ 6400
690
10/10
30/30
42/42
45/45
85/85
Rated current In (A)
AC Breaking
capacity (kA rms)
IEC60947-2
Icu/Ics
NF400-CP
23
Thermal, magnetic
Fixed ampere rating and
instantaneous
250, 300, 350, 400
600
–
15/8
25/13
36/18
50/25
250 2500 ± 500
300 3000 ± 600
350 3500 ± 700
400 4000 ± 800
23
Thermal, magnetic
Fixed ampere rating and
instantaneous
6 In4 In
250 1500±300 1000±200
300 1800±360 1200±240
350 2100±420 1400±280
400 2400±480 1600±320
23
Magnetic
Fixed ampere rating and
instantaneous
250 2500 ± 500
300 3000 ± 600
350 3500 ± 700
400 4000 ± 800
–
–
–
NF400-SP
234
Thermal, magnetic
Fixed ampere rating and
instantaneous
250, 300, 350, 400
690
10/10
30/30
42/42
45/45
85/85
250 3500 ± 700
300 4200 ± 840
350 4900 ± 980
400 5600 ± 1120
234
Magnetic
Fixed ampere rating and
instantaneous
250 2500 ± 500
300 3000 ± 600
350 3500 ± 700
400 4000 ± 800
–
–
–
–
–
–
–
–
–
–
–
–
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