NB1-63H 3 Pole D Curve MCB | Chint

Product Summary:
The NB1-63H 3 Pole D Curve Miniature Circuit Breaker from CHINT is designed to provide efficient circuit protection with high breaking capacity, compact design, and easy installation for low-voltage distribution systems.

Key Features:

• 3 Pole, D Curve type for high inrush current applications

• Complies with IEC/EN 60898-1 standards

• Rated current up to 63A

• Rated voltage: 230/400V~

• High short-circuit breaking capacity (6kA)

• Clear ON/OFF indicator

• Compact modular design

• Flame retardant housing for fire safety

• Long electrical and mechanical life
  
  

Applications:

• Residential and commercial distribution boards

• HVAC and industrial control panels

• Motor and inductive load protection

• Power distribution in factories

• Data centers and telecom infrastructure
  
  

Product Benefits:

• High reliability and safety for circuit protection

• Saves installation space with compact design

• Compatible with various mounting and terminal systems

• Reduces downtime by quick trip indication

• Easy integration into modular DIN rail systems
  
  

FAQs:

Q1: What is the advantage of D Curve MCBs over B or C types?
A1: D Curve MCBs are suitable for applications with high inrush currents, like motors and transformers, as they trip at 10–20 times the rated current.

Q2: Is this MCB compliant with international safety standards?
A2: Yes, the NB1-63H series complies with IEC/EN 60898-1 standards.

Q3: Can this be used for industrial applications?
A3: Yes, its high breaking capacity and D curve make it ideal for industrial machinery and inductive loads.