CHINT NB1-63 MCB for Low-Voltage Distribution and Panel Supply

Product Overview

CHINT NB1-63 miniature circuit breaker is a dependable product family for low-voltage distribution, panel building, and standard protection applications. It suits distributors, installers, and export buyers looking for practical MCB supply.

Key Features

• Suitable for low-voltage distribution and panel protection
• Covers common pole and current options for daily market demand
• Practical for distributor orders, repeat purchases, and export supply
• Easy to position for standard protection applications

Typical Applications

• Distribution boards and low-voltage panels
• Commercial and residential electrical systems
• Project supply for installers and distributors
• Standard export-oriented electrical orders

Selection Guide

For NB1-63 model matching, buyers usually confirm pole options, current range, certification needs, and the target application environment before placing an order.

Frequently Asked Questions

Who typically buys NB1-63 products?

NB1-63 is often purchased by distributors, installers, panel builders, and export buyers looking for standard low-voltage protection products.

What information should be shown clearly on the page?

Pole options, current ratings, product positioning, and supply advantages should all be presented clearly.

Is NB1-63 good for repeat orders?

Yes. It is a standard product family with strong repeat-order potential for distributors and project suppliers.

Request a Quote

Send your required pole options, current range, and target market, and we will prepare a fast NB1-63 quotation for your order.

Technical Specifications

Chint brand NB1-63 6kA NB1-63H 10kA MCB 6A 10A 16A 20A 25A 32A 40A 50A 63A 1P 2P 3P 4P CE CB UL1077 Chnt Mini Circuit Breaker

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.
      NB1-63 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,       network 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).