Chint NB1-63H 1 Pole D Curve MCB

Product Summary:
The Chint NB1-63H 1 Pole D Curve MCB offers superior protection for high inrush current applications such as transformers and industrial loads. Ideal for reliable circuit protection and isolation.

Key Features:

• Rated current up to 63A

• D Curve: 10–14x In, ideal for high inrush loads

• Compact 1P design

• High breaking capacity

• Reliable short-circuit and overload protection

• Suitable for domestic, commercial & industrial use

Application:

• Industrial machinery with high inrush current

• Transformers and lighting circuits

• Commercial buildings

• Electrical distribution boards

• Panel installations in factories

Product Benefits:

• Ensures safe operation under high start-up current

• Avoids nuisance tripping with D Curve profile

• Easy to install in compact spaces

• Enhances safety with isolation function

• Meets international IEC standards

FAQs:

Q1: What does the D Curve mean in this MCB?
A1: The D Curve indicates the MCB trips between 10 to 14 times the rated current, ideal for equipment with high inrush current like transformers or motors.

Q2: Can this MCB be used in residential panels?
A2: Yes, but it’s best suited for circuits with heavy start-up loads. For general household usage, B or C curve MCBs are recommended.

Q3: What is the maximum current rating of the NB1-63H series?
A3: The NB1-63H series supports current ratings up to 63A depending on the model variant.