NXB-63S Miniature Circuit Breaker

NXB-63S Miniature Circuit Breaker

The NXB-63S Miniature Circuit Breaker (MCB) delivers overload protection, short-circuit protection, and positive isolation for electrical systems. Featuring an enhanced 4.5kA breaking capacity, this breaker offers superior fault interruption and heightened safety for more demanding circuits. Available for diverse current ratings (1A to 63A) and multiple poles, it provides adaptable performance and durable reliability, making it an integral component for power distribution in residential, commercial, and industrial environments.

Product Information

Compliant Standards and Certifications

IEC/EN 60898-1
CE, EAC, RoHS

Main Specifications

Rated Current (In): 1A to 63A
Rated Voltage: 220V/230V/240V (1P, 1P+N), 380V/400V/415V (2P–4P, 3P+N)
Frequency: 50/60Hz
Trip Curve: B, C, D
Poles: 1P, 1P+N, 2P, 3P, 3P+N, 4P
Mechanical Life: 20,000 cycles
Electrical Life: 10,000 cycles
Rated Short-circuit Breaking Capacity (Icn): 4.5kA
Short-circuit Breaking Capacity (Ics): 4.5kA
Rated Insulation Voltage (Ui): 500V
Rated Impulse Withstand Voltage (Uimp): 4kV

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NXB-63S-MCB-Catalog.pdf

906.54KB

2025-06-11

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2101-NXB-63C-NXB-63S-MCB-Manual.pdf

976.42KB

2024-09-22

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2503-NXB-63S-MCB-CE Certificate.pdf

608.82KB

2025-04-28

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2309-NXB-63S-MCB-CE RoHS Declaration Certificate.pdf

668.94KB

2024-09-22

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