Chint NB1-63B1P40 SP Type B MCB 40A 6kA

The NB1-63B1P40 is a high-performance miniature circuit breaker (MCB) designed to provide reliable protection for electrical circuits against overload and short-circuit conditions. Built within the trusted NB1-63 series, it is widely used in residential, commercial, and light industrial electrical distribution systems.

Engineered for DIN rail mounting, this compact 1-pole device delivers a 40A rated current and a 6kA breaking capacity, ensuring fast and safe disconnection of faulty circuits to protect wiring and connected equipment.

With its Type B tripping curve, the NB1-63B1P40 is particularly suited for general-purpose applications where moderate inrush currents may occur, such as lighting circuits, socket outlets, and small electrical loads.

Key Features:

• Model: NB1-63B1P40
• Type: Miniature Circuit Breaker (MCB)
• Poles: 1P (Single Pole)
• Rated Current: 40A
• Breaking Capacity: 6kA
• Tripping Curve: Type B
• Mounting: DIN rail installation
• Function: Overload and short-circuit protection