Basic Info.
Model NO.
NB1-63
Structure
MCB
Poles Number
1p/2p/3p/4p
Type
Circuit Breaker
Function
Overcurrent Protection
Certification
VDE, ISO9001-2000, CE, CB, CCC
Brands
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
Packaging & Delivery
Package Size
30.00cm * 30.00cm * 30.00cm
Package Gross Weight
0.100kg
Product Description
Chint NB1-63 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).
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 |
