The CHINT NB1-63 3P 20A MCB, with a 6kA breaking capacity and C-curve tripping characteristics, is suited for applications with moderate inrush currents such as lighting, power outlets, and small motors. The compact DIN rail design ensures fast installation and consistent performance across residential, commercial, and light industrial environments.

The CHINT NB1-63 Miniature Circuit Breaker is designed for reliable overload and short-circuit protection in low-voltage electrical installations. Compact and durable, it operates in AC 50/60 Hz, 230/400 V circuits, with rated currents up to 63 A and a breaking capacity of 6 kA. Its B, C, and D tripping curves accommodate different load types, while a long mechanical life ensures consistent performance in residential, commercial, and light industrial environments

Technical Specification: 

• Standards Compliance: IEC/EN 60898-1
• Function: Overload, short-circuit, and isolation protection
• Rated Voltage (Ue): 415 V~ 3P
• Rated Frequency: 50/60 Hz
• Rated Current (In): 20 A
• Rated Breaking Capacity (Icn): 6 kA
• Rated Insulation Voltage (Ui): 500 V
• Tripping Characteristics: C Curve: 5–10 In (mixed loads, motor circuits)
• Mounting: TH35-7.5 DIN rail
• Connection: Top or bottom feed
• Terminal Capacity: 1–25 mm² (cable)
• Tightening Torque: 2.0 N·m
• Compatible Accessories: Click here auxiliary contact, alarm contact, shunt release, undervoltage release
• Dimensions (mm): Height: 82, Depth: 75.5, Width: 54 mm

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