Chint NB1-63D1P20 SP Type D MCB 20A 6kA

The NB1-63D1P20 is a reliable and compact miniature circuit breaker (MCB) designed to protect electrical circuits from overload and short-circuit faults. As part of the NB1-63 series, it is widely used in residential, commercial, and light industrial applications where circuits are exposed to high inrush currents and require dependable protection.

With a 20A rated current and a 6kA breaking capacity, the NB1-63D1P20 ensures fast and effective disconnection during fault conditions, helping to safeguard wiring, equipment, and connected loads. Its Type D tripping curve is specifically designed for applications with very high starting currents, making it suitable for motors, transformers, compressors, pumps, and other heavy inductive loads.

The 1-pole (1P) configuration provides protection for a single phase conductor, making it suitable for single-phase branch circuits. Designed for DIN rail mounting, it allows quick and secure installation in distribution boards and control panels.

Key Features:

• Model: NB1-63D1P20
• Type: Miniature Circuit Breaker (MCB)
• Poles: 1P (Single Pole)
• Rated Current: 20A
• Breaking Capacity: 6kA
• Tripping Curve: Type D (10–20 In)
• Mounting: DIN rail installation
• Function: Overload and short-circuit protection