NB163H-4PC63 is a 4-pole 63A MCB, a high-performance miniature circuit breaker designed for superior overload and short-circuit protection. Featuring a 10kA breaking capacity and C-curve tripping characteristic, it is suitable for residential, commercial, and industrial applications requiring dependable circuit protection.

The CHINT NB1-63H Miniature Circuit Breaker (MCB) provides dependable protection against overload and short-circuit faults in AC circuits up to 415 V. Engineered for residential, commercial, and industrial applications, it features a 10 kA breaking capacity, thermomagnetic trip, and multiple tripping curves for versatile use. With a compact modular design, IP20 protection, and compliance with IEC/EN 60898-1 standards, the NB1-63H ensures safe, efficient, and durable circuit control in modern power distribution systems.

Technical Specification: 

• Standard: IEC/EN 60898-1
• Rated Voltage (Ue): AC 415 V
• Rated Insulation Voltage (Ui): 500 V
• Rated Current (In): 63A
• No. of Poles: 3P+N, 4P
• Rated Short-Circuit Breaking Capacity (Icu): 10,000 A
• Tripping Characteristics: Type C (5–10 In) protection for resistive and inductive loads with low inrush current.
• Rated Frequency: 50/60 Hz
• Terminal Type: Cable / U-type busbar / Pin-type busbar
• Terminal Capacity: Up to 25 mm²
• Mounting: DIN-rail EN 60715 (35 mm)
• Connection: Top or bottom feed
• Auxiliary Accessories: Click here - Auxiliary contact, shunt release, under-voltage release, alarm contact
• Dimensions (mm): Height: 82, Depth: 75.5, Width: 72 mm

Download Datasheet