32A 1 Pole B Curve MCB (NB1‑63B1P32)
32A 1 Pole B Curve MCB (NB1‑63B1P32)
SKU:NB1-63B1P32
Brand: CHINT
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Product Details
Product Details
The CHINT NB1‑63B1P32 32A 1 Pole B Curve MCB is a reliable miniature circuit breaker designed to protect single‑phase electrical circuits from overloads and short circuits. Built to UK and international standards, this compact device provides essential circuit protection in homes, offices and light commercial installations.
Featuring a 32 amp rating and a B curve trip characteristic, it responds quickly to moderate overloads, making it ideal for general lighting and power circuits. The 6 kiloampere breaking capacity helps ensure safe disconnection during fault conditions, safeguarding wiring and connected appliances.
Constructed with a robust body and DIN‑rail mountable format, this MCB fits standard distribution boards and consumer units. Its simple on/off toggle switch gives clear visual and tactile indication of the circuit’s status. The NB1 series also complies with industry safety standards, giving confidence in long‑term, dependable operation.
Whether wiring new circuits or replacing an existing breaker, the NB1‑63B1P32 combines straightforward installation with trusted performance. It helps protect people and property by interrupting unsafe current flows quickly and consistently.
Product Specifications
Product Specifications
Electrical Specifications
- Model: NB1-63B1P32
- Rated Current (In): 32A
- Number of Poles: 1P
- Tripping Curve: B Curve (3-5 In)
- Rated Voltage (Ue): 230/400V AC
- Rated Frequency: 50/60Hz
- Rated Short-circuit Capacity (Icn): 6,000A (6kA)
- Rated Insulation Voltage (Ui): 500V
- Rated Impulse Withstand Voltage (Uimp): 4,000V (4kV)
- Energy Limiting Class: 3
- Power Loss per Pole: 3.5W
- Release Type: Thermo-magnetic
Mechanical & Installation Data
- Mounting: 35mm DIN Rail (EN 60715) via fast clip device
- Terminal Connection Type: Cable / U-type busbar / Pin-type busbar
- Terminal Size (Cable): Up to 25mm² (18-4 AWG)
- Terminal Size (Busbar): Up to 10mm² (18-8 AWG)
- Tightening Torque: 2.5 N·m (22 In-lbs)
- Connection Direction: From top and bottom
- Electrical Life: 4,000 operations
- Mechanical Life: 20,000 operations
- Protection Degree: IP20
- Contact Position Indicator: Yes (Color-coded visual indication)
Environmental Specifications
- Ambient Operating Temperature: -5°C to +40°C (Daily average ≤ 35°C)
- Storage Temperature: -25°C to +70°C
- Reference Temperature for Tripping: 30°C
- Pollution Degree: 2
Dimensions
- Width: 18mm (1 module)
- Height: 86mm
- Overall Depth: 78mm
Key Features
- Reliable Protection: Engineered to protect circuits against short-circuit and overload currents, specifically for TN and IT earthing systems.
- Integrated Safety: Features a trip-free mechanism, ensuring the circuit breaker operation cannot be defeated by holding the handle in the "ON" position.
- Efficient Cooling: Includes a built-in heat dissipation gap to provide better cooling during sustained operation.
- Visual Status Monitoring: Equipped with a color-coded contact position indicator that provides clear visual confirmation of the device status and insulation function.
- Flexible Installation: Features an extendable DIN-rail holder for easy installation and terminals that accept both wire and various busbar types for reduced installation costs.
Standards & Compliance
- Primary Standard: IEC/EN 60898-1
- Certification: CE Marked, ASTA Licensed, VDE, KEMA, SEMKO, RCC, UL Verified
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