Basic Info.
Model NO.
NB1-63
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
Trademark
Chint
Origin
China
HS Code
853620
Production Capacity
90000PCS Per Day
Packaging & Delivery
Package Size
20.00cm * 20.00cm * 20.00cm
Package Gross Weight
0.200kg
Product Description
Chint NB1-63 Nb1-63h CCC CE CB UL Semko VDE MCB 1A 2A 3A 4A 6A 10A 16A 20A 25A 32A 40A 50A 63A 1p 2p 3p 4p 6ka 10ka 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).
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 |
