CHINT NB1-63H Miniature Circuit Breaker (MCB) Supplier | SIMPLYBUY
海报
CHINT NB1-63H Miniature Circuit Breaker (MCB)
CHINT NB1-63H Miniature Circuit Breaker (MCB) - Image 2
CHINT NB1-63H Miniature Circuit Breaker (MCB) - Image 3

CHINT NB1-63H Miniature Circuit Breaker (MCB)

Manufacturer: CHINT
Model: NB1-63H Miniature Circuit Breaker (MCB)
Rated Current: 1–63A
Rated Voltage: 230/400V AC
Breaking Capacity: 10kA (IEC/EN 60898-1)
Tripping Characteristics: B / C / D curve
Number of Poles: 1P / 1P+N / 2P / 3P / 4P
Frequency: 50/60Hz

Get a Quote

Product Description

CHINT NB1-63H Miniature Circuit Breaker (MCB) is a high-performance protective device designed to ensure reliable overload and short-circuit protection in low-voltage electrical systems. Featuring a compact modular design with a rated current range up to 63A and a high breaking capacity of 10kA, the NB1-63H delivers stable operation and enhanced safety under demanding conditions. Available in multiple tripping curves (B, C, and D) and pole configurations, it offers flexible application across residential, commercial, and light industrial distribution networks. Compliant with IEC/EN 60898-1 standards and easy to install on standard DIN rails, the NB1-63H provides a dependable and cost-effective solution for modern power distribution protection.

 
 

Standard Features

  • Overload Protection: Automatically trips the circuit when current exceeds the rated value to prevent conductor overheating

  • Short-Circuit Protection: Provides fast disconnection under short-circuit conditions to protect equipment and wiring

  • High Breaking Capacity: Rated up to 10kA to safely interrupt high fault currents

  • Multiple Tripping Curves: Available in B, C, and D characteristics to suit different load types

  • Multi-Pole Configurations: Offered in 1P, 1P+N, 2P, 3P, and 4P versions for flexible system design

  • Manual Switching Function: Can be used as an on/off isolation switch for maintenance operations

  • DIN Rail Mounting: Standard 35mm DIN rail installation for quick and secure panel assembly

  • Status Indication: Clear handle position indication for easy identification of circuit status

Technical Specifications

 

ModelDescriptionCurrent RatingSupply Voltage
NB1-63H 1P BSingle-pole MCB with B-curve for resistive loads1 – 63 A230 V AC
NB1-63H 1P CSingle-pole MCB with C-curve for general applications1 – 63 A230 V AC
NB1-63H 1P DSingle-pole MCB with D-curve for high inrush currents1 – 63 A230 V AC
NB1-63H 1P+N CSingle-pole + neutral MCB for enhanced safety1 – 63 A230 V AC
NB1-63H 2P CTwo-pole MCB for single-phase circuits1 – 63 A230 / 400 V AC
NB1-63H 3P CThree-pole MCB for three-phase distribution1 – 63 A400 V AC
NB1-63H 4P CFour-pole MCB for three-phase + neutral systems1 – 63 A400 V AC

 

Related products

Get a Quote

    ✕

    Get A Quote

      ✕

      Download Catalog