CHINT NA8G User Manual

13.1 Selective protection between NM8 and NA1
13. Selectivity protection
3.45~9.45
4.14~9.45
3.45~12
4.14~12
3.45~15
4.14~15
3.45~18.75
4.14~18.75
3.45~24
4.14~24
3.45~30
4.14~30
3.45~30
4.14~30
3.45~37.7
4.14~37.7
3.45~48
4.14~48
4~60
4.14~60
4~60
4.14~60
5~75
5~75
6.3~94.5
6.3~94.5
2.5
3.0(motor)
250
2.76~9.45
3.312~9.45
2.76~12
3.312~12
2.76~15
3.312~15
2.76~18.75
3.312~18.75
2.76~24
3.312~24
2.76~30
3.312~30
2.76~30
3.312~30
2.76~37.7
3.312~37.7
3.2~48
3.312~48
4~60
4~60
4~60
4~60
5~75
5~75
6.3~94.5
6.3~94.5
2.0
2.4(motor)
200
2.208~9.45
2.65~9.45
2.208~12
2.65~12
2.208~15
2.65~15
2.208~18.75
2.65~18.75
2.208~24
2.65~24
2.208~30
2.65~30
2.208~30
2.65~30
2.5~37.7
2.65~37.7
3.2~48
3.2~48
4~60
4~60
4~60
4~60
5~75
5~75
6.3~94.5
6.3~94.5
1.6
1.92(motor)
160
1.38~9.45
1.656~9.45
1.38~12
1.656~12
1.38~15
1.656~15
1.38~18.75
1.656~18.75
1.6~24
1.656~24
2~30
2~30
2~30
2~30
2.5~37.7
2.5~37.7
3.2~48
3.2~48
4~60
4~60
4～60
4～60
5~75
5~75
6.3~94.5
6.3~94.5
1.0
1.2(motor)
100
1.725~9.45
2.07~9.45
1.725~12
2.07~12
1.725~15
2.07~15
1.725~18.75
2.07~18.75
1.725~24
2.07~24
1.725~30
2.07~30
1.725~30
2.07~30
1.725~37.7
2.07~37.7
1.725~48
2.07~48
1.725~60
2.07~60
1.725~60
2.07~60
1.725~75
2.07~75
1.725~94.5
2.07~94.5
1.25
1.5(motor)
125
1.38~9.45 1.38~12
1.38~15
1.38~18.75
1.6~24
2~30 2~30
2.5~37.7
3.2~48
4~60 4～60
5~75
6.3~94.5
1.0
100
1.656~9.45 1.656~12
1.656~15
1.656~18.75
1.656~24
2~30 2~30
2.5~37.7
3.2~48
4~60 4～60
5~75
6.3~94.5
1.20(motor)
1.104~9.45
1.325~9.45
1.104~12
1.325~12
1.104~15
1.325~15
1.25~18.75
1.325~18.75
1.6~24
1.6~24
2~30
2~30
2~30
2~30
2.5~37.7
2.5~37.7
3.2~48
3.2~48
4~60
4~60
4～60
4～60
5~75
5~75
6.3~94.5
6.3~94.5
0.80
0.96(motor)
80
0.8694~9.45
1.035~9.45
0.8694~12
1.035~12
1~15
1.035~15
1.25~18.75
1.25~18.75
1.6~24
1.6~24
2~30
2~30
2~30
2~30
2.5~37.7
2.5~37.7
3.2~48
3.2~48
4~60
4~60
4～60
4～60
5~75
5~75
6.3~94.5
6.3~94.5
0.63
0.75(motor)
63
0.69~9.45
0.828~9.45
0.8~12
0.828~12
1~15
1~15
1.25~18.75
1.25~18.75
1.6~24
1.6~24
2~30
2~30
2~30
2~30
2.5~37.7
2.5~37.7
3.2~48
3.2~48
4~60
4~60
4~60
4～60
5~75
5~75
6.3~94.5
6.3~94.5
0.50
0.60(motor)
50
0.63~9.45
0.6624~9.45
0.8~12
0.8~12
1~15
1~15
1.25~18.75
1.25~18.75
1.6~24
1.6~24
2~30
2~30
2~30
2~30
2.5~37.7
2.5~37.7
3.2~48
3.2~48
4~60
4~60
4~60
4~60
5~75
5~75
6.3~94.5
6.3~94.5
0.40
0.48(motor)
40
0.63~9.45
0.63~9.45
0.8~12
0.8~12
1~15
1~15
1.25~18.75
1.25~18.75
1.6~24
1.6~24
2~30
2~30
2~30
2~30
2.5~37.7
2.5~37.7
3.2~48
3.2~48
4~60
4~60
4~60
4~60
5~75
5~75
6.3~94.5
6.3~94.5
0.32
0.38(motor)
32
0.63~9.45
0.63~9.45
0.8~12
0.8~12
1~15
1~15
1.25~18.75
1.25~18.75
1.6~24
1.6~24
2~30
2~30
2~30
2~30
2.5~37.7
2.5~37.7
3.2~48
3.2~48
4~60
4~60
4~60
4~60
5~75
5~75
6.3~94.5
6.3~94.5
0.25
0.30(motor)
25
0.63~9.45
0.63~9.45
0.8~12
0.8~12
1~15
1~15
1.25~18.75
1.25~18.75
1.6~24
1.6~24
2~30
2~30
2~30
2~30
2.5~37.7
2.5~37.7
3.2~48
3.2~48
4~60
4~60
4~60
4~60
5~75
5~75
6.3~94.5
6.3~94.5
0.2
0.24(motor)
20
0.63~9.45
0.63~9.45
0.8~12
0.8~12
1~15
1~15
1.25~18.75
1.25~18.75
1.6~24
1.6~24
2~30
2~30
2~30
2~30
2.5~37.7
2.5~37.7
3.2~48
3.2~48
4~60
4~60
4~60
4~60
5~75
5~75
6.3~94.5
6.3~94.5
0.16
0.19(motor)
16
Circuit breaker
Rated
current (A)
Default setting ratings
of short time-delay 8In (kA)
Setting
range (kA)
Delayed tripping
time (s)
Returnable time
Frame size
rated current
Rated
current (A)
630 800 1000 1250 1600 2000 2000 2500 3200
Instantaneous
setting ratings (kA)
NM8-125
NM8S-125
NM8-250
NM8S-250
4000 4000 5000 6300
NA1-2000X/NA1-2000XN/NA1-2000XH NA1-3200X/NA1-3200XN
NA1-4000X
NA1-6300X/NA1-6300XN
5.04
0.63～9.45
6.4
0.8~12
8
1~15
10
16 16
20
25.6
32 32
1.25~18.75
2~30 2~30
2.5~37.7
3.2~48
4~60 4~60
40 50.4
5~75
6.3~94.5
Downstream Upstream
0.1, 0.2, 0.3, 0.4 0.1, 0.2, 0.3, 0.4
0.06, 0.14, 0.23, 0.35 0.06, 0.14, 0.23, 0.35
12.8
1.6~24
C
NA1
Air Circuit Breaker
P-074
P-073
NA1
Air Circuit Breaker

CHINT NA8G Specifications

General

Brand	CHINT
Model	NA8G
Category	Circuit breakers
Language	English