CHINT NA8G User Manual

12. Coordination recommendations
Capacity of transformer
(kVA) & parallelly
connected number
Rated current
of transformer In(A)
Short circuit current
of main circuit (kA)
Breaking capacity of
air circuit breaker for
main circuit (kA)
Type of air circuit
breaker for
main circuit
Number and area of the
busbar for main circuit
(n×W×T)
Breaking capacity of
air circuit breaker
for branch circuit (kA)
Air circuit breaker
for branch circuit
1×250
2×250
3×250
1×315
2×315
3×315
1×400
2×400
3×400
1×500
2×500
3×500
1×630
2×630
3×630
1×800
2×800
3×800
1×1000
2×1000
3×1000
1×1250
2×1250
3×1250
1×1600
2×1600
3×1600
1×2000
2×2000
3×2000
1×2500
2×2500
1×3150
2×3150
360
360
360
455
455
455
578
578
578
722
722
722
910
910
910
1154
1154
1154
1444
1444
1444
1805
1805
1805
2310
2310
2310
2887
2887
2887
3608
3608
4550
4550
9
9
9
11.4
11.4
11.4
14.4
14.4
14.4
18
18
18
22.7
22.7
22.7
19.3
19.3
19.3
24
24
24
30
30
30
36.5
36.5
36.5
48.2
48.2
48.2
60
60
75.8
75.8
9
9
18.5
11.4
11.4
22.7
14.4
14.4
28.8
18
18
36.1
22.7
22.7
44.5
19.3
19.3
38.5
24
24
48.1
30
30
60.1
36.5
36.5
73
48.2
48.2
96.3
60
60
75.8
75.8
NA1-1000X-400
NA1-1000X-400
NA1-1000X-400
NA1-1000X-630
NA1-1000X-630
NA1-1000X-630
NA1-1000X-630
NA1-1000X-630
NA1-1000X-630
NA1-1000X-800
NA1-1000X-800
NA1-1000X-800
NA1-1000X-1000
NA1-1000X-1000
NA1-2000X-1000
NA1-2000X-1250
NA1-2000X-1250
NA1-2000X-1250
NA1-2000X-1600
NA1-2000X-1600
NA1-2000X-1600
NA1-2000X-2000
NA1-2000X-2000
NA1-2000X-2000
NA1-3200X-2500
NA1-3200X-2500
NA1-3200X-2500
NA1-3200X-3200
NA1-3200X-3200
NA1-3200X-3200
NA1-6300X-4000
NA1-6300X-4000
NA1-6300X-5000
NA1-6300X-5000
2×(5×30)
9
18.5
27.5
11.4
22.7
34.1
14.4
28.8
43.2
18
36.1
54.1
22.7
44.5
67.2
19.3
38.5
57.8
24
48.1
72.1
30
60.1
90.1
36.5
73
109.5
48.2
96.3
144.5
60
120
75.8
151.6
NA1, NM8
NA1, NM8
NA1, NM8
NA1, NM8
NA1, NM8
NA1, NM8
NA1, NM8
NA1, NM8
NA1, NM8
NA1, NM8
NA1, NM8
NA1, NM8
2×(5×40)
2×(5×40)
2×(6×50)
2×(8×50)
2×(10×60)
2×(12×60)
3×(10×60)
2×(10×100)
4×(10×100)
4×(10×120)
7×(10×100)
C
NA1
Air Circuit Breaker
P-072
P-071
NA1
Air Circuit Breaker

CHINT NA8G Specifications

General

Brand	CHINT
Model	NA8G
Category	Circuit breakers
Language	English