Chint Nb1-63 UL1077 MCB 277V 440V 480V 1 2 3 4 Pole 1 2 3 4 6 10 16 20 25 32 40 50 63 AMP UL 1077 Chnt Mini Miniature Circuit Breaker

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Arc-extinguishing Medium: Air
• Model NO.: NB1-63
• Installation: Fixed
• Structure: MCB
• Poles Number: 1p/2p/3p/4p
• Function: Overcurrent Protection
• Certification: VDE, ISO9001-2000, CE, CB, CCC
• Brand: Chint
• Model: Nb1-63
• Rated Current: 1A ~ 63A
• Rated Breaking Capacity: 6ka / 10ka
• Transport Package: Cartons
• Trademark: Chint
• Origin: China
• HS Code: 853620
• Production Capacity: 90000PCS Per Day
• Package Size: 22.00cm * 22.00cm * 22.00cm
• Package Gross Weight: 0.200kg

Product Description

Chint Nb1-63 277V 440V 480V 50Hz 60Hz MCB 1 2 3 4 Pole 1 2 3 4 6 10 16 20 25 32 40 50 63 AMP UL1077 Chnt Mini Miniature Circuit Breaker

1. General

1.1 Function 
protection of circuits against short-circuit currents, protection of circuits against overload currents, switch,isolation.
NB1 circuit-breakers are used in domestic installation, as well as in commercial and industry electrical distribution systems.

1.2 Selection
Technical data of the network at the point considered: short-circuit current at the circuit-breaker installation point, which must always be less than the breaking capacity of this device, etwork normal voltage.

Tripping curves:
B curve (3-5In)
protection for people and big length cables in TN and IT systems.

C curve (5-10In)
protection for resistive and inductive loads with low inrush current.

D curve(10-14In)
protection for circuits which supply loads with high inrush
current at the circuit closing (LV/LV transformers, breakdown lamps).

Chint NB1-63 6kA - Curve B
Rated current In	Item	Reference Numbers
1A	NB1-63 1P B1	NB1-1-1B	NB1-63B1P01	179599
2A	NB1-63 1P B2	NB1-1-2B	NB1-63B1P02	179603
3A	NB1-63 1P B3	NB1-1-3B	NB1-63B1P03	179606
4A	NB1-63 1P B4	NB1-1-4B	NB1-63B1P04	179608
6A	NB1-63 1P B6	NB1-1-6B	NB1-63B1P06	179611
10A	NB1-63 1P B10	NB1-1-10B	NB1-63B1P10	179600
16A	NB1-63 1P B16	NB1-1-16B	NB1-63B1P16	179602
20A	NB1-63 1P B20	NB1-1-20B	NB1-63B1P20	179604
25A	NB1-63 1P B25	NB1-1-25B	NB1-63B1P25	179605
32A	NB1-63 1P B32	NB1-1-32B	NB1-63B1P32	179607
40A	NB1-63 1P B40	NB1-1-40B	NB1-63B1P40	179609
50A	NB1-63 1P B50	NB1-1-50B	NB1-63B1P50	179610
63A	NB1-63 1P B63	NB1-1-63B	NB1-63B1P63	179612
1A	NB1-63 2P B1	NB1-2-1B	NB1-63B2P01	179641
2A	NB1-63 2P B2	NB1-2-2B	NB1-63B2P02	179645
3A	NB1-63 2P B3	NB1-2-3B	NB1-63B2P03	179648
4A	NB1-63 2P B4	NB1-2-4B	NB1-63B2P04	179650
6A	NB1-63 2P B6	NB1-2-6B	NB1-63B2P06	179653
10A	NB1-63 2P B10	NB1-2-10B	NB1-63B2P10	179642
16A	NB1-63 2P B16	NB1-2-16B	NB1-63B2P16	179644
20A	NB1-63 2P B20	NB1-2-20B	NB1-63B2P20	179646
25A	NB1-63 2P B25	NB1-2-25B	NB1-63B2P25	179647
32A	NB1-63 2P B32	NB1-2-32B	NB1-63B2P32	179649
40A	NB1-63 2P B40	NB1-2-40B	NB1-63B2P40	179651
50A	NB1-63 2P B50	NB1-2-50B	NB1-63B2P50	179652
63A	NB1-63 2P B63	NB1-2-63B	NB1-63B2P63	179654
1A	NB1-63 3P B1	NB1-3-1B	NB1-63B3P01	179683
2A	NB1-63 3P B2	NB1-3-2B	NB1-63B3P02	179687
3A	NB1-63 3P B3	NB1-3-3B	NB1-63B3P03	179690
4A	NB1-63 3P B4	NB1-3-4B	NB1-63B3P04	179692
6A	NB1-63 3P B6	NB1-3-6B	NB1-63B3P06	179695
10A	NB1-63 3P B10	NB1-3-10B	NB1-63B3P10	179684
16A	NB1-63 3P B16	NB1-3-16B	NB1-63B3P16	179686
20A	NB1-63 3P B20	NB1-3-20B	NB1-63B3P20	179688
25A	NB1-63 3P B25	NB1-3-25B	NB1-63B3P25	179689
32A	NB1-63 3P B32	NB1-3-32B	NB1-63B3P32	179691
40A	NB1-63 3P B40	NB1-3-40B	NB1-63B3P40	179693
50A	NB1-63 3P B50	NB1-3-50B	NB1-63B3P50	179694
63A	NB1-63 3P B63	NB1-3-63B	NB1-63B3P63	179696
1A	NB1-63 4P B1	NB1-4-1B	NB1-63B4P01	179725
2A	NB1-63 4P B2	NB1-4-2B	NB1-63B4P02	179729
3A	NB1-63 4P B3	NB1-4-3B	NB1-63B4P03	179732
4A	NB1-63 4P B4	NB1-4-4B	NB1-63B4P04	179734
6A	NB1-63 4P B6	NB1-4-6B	NB1-63B4P06	179737
10A	NB1-63 4P B10	NB1-4-10B	NB1-63B4P10	179726
16A	NB1-63 4P B16	NB1-4-16B	NB1-63B4P16	179728
20A	NB1-63 4P B20	NB1-4-20B	NB1-63B4P20	179730
25A	NB1-63 4P B25	NB1-4-25B	NB1-63B4P25	179731
32A	NB1-63 4P B32	NB1-4-32B	NB1-63B4P32	179733
40A	NB1-63 4P B40	NB1-4-40B	NB1-63B4P40	179735
50A	NB1-63 4P B50	NB1-4-50B	NB1-63B4P50	179736
63A	NB1-63 4P B63	NB1-4-63B	NB1-63B4P63	179738
Chint NB1-63 6kA - Curve C
Rated current In	Description	Reference Numbers
1A	NB1-63 1P C1	NB1-1-1C	NB1-63C1P01	179613
2A	NB1-63 1P C2	NB1-1-2C	NB1-63C1P02	179617
3A	NB1-63 1P C3	NB1-1-3C	NB1-63C1P03	179620
4A	NB1-63 1P C4	NB1-1-4C	NB1-63C1P04	179622
6A	NB1-63 1P C6	NB1-1-6C	NB1-63C1P06	179625
10A	NB1-63 1P C10	NB1-1-10C	NB1-63C1P10	179614
16A	NB1-63 1P C16	NB1-1-16C	NB1-63C1P16	179616
20A	NB1-63 1P C20	NB1-1-20C	NB1-63C1P20	179618
25A	NB1-63 1P C25	NB1-1-25C	NB1-63C1P25	179619
32A	NB1-63 1P C32	NB1-1-32C	NB1-63C1P32	179621
40A	NB1-63 1P C40	NB1-1-40C	NB1-63C1P40	179623
50A	NB1-63 1P C50	NB1-1-50C	NB1-63C1P50	179624
63A	NB1-63 1P C63	NB1-1-63C	NB1-63C1P63	179626
1A	NB1-63 2P C1	NB1-2-1C	NB1-63C2P01	179655
2A	NB1-63 2P C2	NB1-2-2C	NB1-63C2P02	179659
3A	NB1-63 2P C3	NB1-2-3C	NB1-63C2P03	179662
4A	NB1-63 2P C4	NB1-2-4C	NB1-63C2P04	179664
6A	NB1-63 2P C6	NB1-2-6C	NB1-63C2P06	179667
10A	NB1-63 2P C10	NB1-2-10C	NB1-63C2P10	179656
16A	NB1-63 2P C16	NB1-2-16C	NB1-63C2P16	179658
20A	NB1-63 2P C20	NB1-2-20C	NB1-63C2P20	179660
25A	NB1-63 2P C25	NB1-2-25C	NB1-63C2P25	179661
32A	NB1-63 2P C32	NB1-2-32C	NB1-63C2P32	179663
40A	NB1-63 2P C40	NB1-2-40C	NB1-63C2P40	179665
50A	NB1-63 2P C50	NB1-2-50C	NB1-63C2P50	179666
63A	NB1-63 2P C63	NB1-2-63C	NB1-63C2P63	179668
1A	NB1-63 3P C1	NB1-3-1C	NB1-63C3P01	179697
2A	NB1-63 3P C2	NB1-3-2C	NB1-63C3P02	179701
3A	NB1-63 3P C3	NB1-3-3C	NB1-63C3P03	179704
4A	NB1-63 3P C4	NB1-3-4C	NB1-63C3P04	179706
6A	NB1-63 3P C6	NB1-3-6C	NB1-63C3P06	179709
10A	NB1-63 3P C10	NB1-3-10C	NB1-63C3P10	179698
16A	NB1-63 3P C16	NB1-3-16C	NB1-63C3P16	179700
20A	NB1-63 3P C20	NB1-3-20C	NB1-63C3P20	179702
25A	NB1-63 3P C25	NB1-3-25C	NB1-63C3P25	179703
32A	NB1-63 3P C32	NB1-3-32C	NB1-63C3P32	179705
40A	NB1-63 3P C40	NB1-3-40C	NB1-63C3P40	179707
50A	NB1-63 3P C50	NB1-3-50C	NB1-63C3P50	179708
63A	NB1-63 3P C63	NB1-3-63C	NB1-63C3P63	179710
1A	NB1-63 4P C1	NB1-4-1C	NB1-63C4P01	179739
2A	NB1-63 4P C2	NB1-4-2C	NB1-63C4P02	179743
3A	NB1-63 4P C3	NB1-4-3C	NB1-63C4P03	179746
4A	NB1-63 4P C4	NB1-4-4C	NB1-63C4P04	179748
6A	NB1-63 4P C6	NB1-4-6C	NB1-63C4P06	179751
10A	NB1-63 4P C10	NB1-4-10C	NB1-63C4P10	179740
16A	NB1-63 4P C16	NB1-4-16C	NB1-63C4P16	179741
20A	NB1-63 4P C20	NB1-4-20C	NB1-63C4P20	179744
25A	NB1-63 4P C25	NB1-4-25C	NB1-63C4P25	179745
32A	NB1-63 4P C32	NB1-4-32C	NB1-63C4P32	179747
40A	NB1-63 4P C40	NB1-4-40C	NB1-63C4P40	179749
50A	NB1-63 4P C50	NB1-4-50C	NB1-63C4P50	179750
63A	NB1-63 4P C63	NB1-4-63C	NB1-63C4P63	179752
Chint NB1-63 6kA - Curve D
Rated current In	Description	Reference Numbers
1A	NB1-63 1P D1	NB1-1-1D	NB1-63D1P01	179627
2A	NB1-63 1P D2	NB1-1-2D	NB1-63D1P02	179631
3A	NB1-63 1P D3	NB1-1-3D	NB1-63D1P03	179634
4A	NB1-63 1P D4	NB1-1-4D	NB1-63D1P04	179636
6A	NB1-63 1P D6	NB1-1-6D	NB1-63D1P06	179639
10A	NB1-63 1P D10	NB1-1-10D	NB1-63D1P10	179628
16A	NB1-63 1P D16	NB1-1-16D	NB1-63D1P16	179630
20A	NB1-63 1P D20	NB1-1-20D	NB1-63D1P20	179632
25A	NB1-63 1P D25	NB1-1-25D	NB1-63D1P25	179633
32A	NB1-63 1P D32	NB1-1-32D	NB1-63D1P32	179635
40A	NB1-63 1P D40	NB1-1-40D	NB1-63D1P40	179637
50A	NB1-63 1P D50	NB1-1-50D	NB1-63D1P50	179638
63A	NB1-63 1P D63	NB1-1-63D	NB1-63D1P63	179640
1A	NB1-63 2P D1	NB1-2-1D	NB1-63D2P01	179669
2A	NB1-63 2P D2	NB1-2-2D	NB1-63D2P02	179673
3A	NB1-63 2P D3	NB1-2-3D	NB1-63D2P03	179676
4A	NB1-63 2P D4	NB1-2-4D	NB1-63D2P04	179678
6A	NB1-63 2P D6	NB1-2-6D	NB1-63D2P06	179681
10A	NB1-63 2P D10	NB1-2-10D	NB1-63D2P10	179670
16A	NB1-63 2P D16	NB1-2-16D	NB1-63D2P16	179672
20A	NB1-63 2P D20	NB1-2-20D	NB1-63D2P20	179674
25A	NB1-63 2P D25	NB1-2-25D	NB1-63D2P25	179675
32A	NB1-63 2P D32	NB1-2-32D	NB1-63D2P32	179677
40A	NB1-63 2P D40	NB1-2-40D	NB1-63D2P40	179679
50A	NB1-63 2P D50	NB1-2-50D	NB1-63D2P50	179680
63A	NB1-63 2P D63	NB1-2-63D	NB1-63D2P63	179682
1A	NB1-63 3P D1	NB1-3-1D	NB1-63D3P01	179711
2A	NB1-63 3P D2	NB1-3-2D	NB1-63D3P02	179715
3A	NB1-63 3P D3	NB1-3-3D	NB1-63D3P03	179718
4A	NB1-63 3P D4	NB1-3-4D	NB1-63D3P04	179720
6A	NB1-63 3P D6	NB1-3-6D	NB1-63D3P06	179723
10A	NB1-63 3P D10	NB1-3-10D	NB1-63D3P10	179712
16A	NB1-63 3P D16	NB1-3-16D	NB1-63D3P16	179714
20A	NB1-63 3P D20	NB1-3-20D	NB1-63D3P20	179716
25A	NB1-63 3P D25	NB1-3-25D	NB1-63D3P25	179717
32A	NB1-63 3P D32	NB1-3-32D	NB1-63D3P32	179719
40A	NB1-63 3P D40	NB1-3-40D	NB1-63D3P40	179721
50A	NB1-63 3P D50	NB1-3-50D	NB1-63D3P50	179722
63A	NB1-63 3P D63	NB1-3-63D	NB1-63D3P63	179724
1A	NB1-63 4P D1	NB1-4-1D	NB1-63D4P01	179753
2A	NB1-63 4P D2	NB1-4-2D	NB1-63D4P02	179757
3A	NB1-63 4P D3	NB1-4-3D	NB1-63D4P03	179760
4A	NB1-63 4P D4	NB1-4-4D	NB1-63D4P04	179762
6A	NB1-63 4P D6	NB1-4-6D	NB1-63D4P06	179765
10A	NB1-63 4P D10	NB1-4-10D	NB1-63D4P10	179754
16A	NB1-63 4P D16	NB1-4-16D	NB1-63D4P16	179756
20A	NB1-63 4P D20	NB1-4-20D	NB1-63D4P20	179758
25A	NB1-63 4P D25	NB1-4-25D	NB1-63D4P25	179759
32A	NB1-63 4P D32	NB1-4-32D	NB1-63D4P32	179761
40A	NB1-63 4P D40	NB1-4-40D	NB1-63D4P40	179763
50A	NB1-63 4P D50	NB1-4-50D	NB1-63D4P50	179764
63A	NB1-63 4P D63	NB1-4-63D	NB1-63D4P63	179766