32A B Curve 30mA A Type 6KA 1P+N RCBO (NB3LEG-B32)
32A B Curve 30mA A Type 6KA 1P+N RCBO (NB3LEG-B32)
SKU:NB3LEG-B32
Brand: CHINT
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Product Details
Product Details
The 32A B Curve 30mA A Type 6KA 1P+N RCBO (SKU: NB3LEG-B32) is a high-performance circuit protection device from Chint that delivers reliable safety and control for electrical installations. Designed for both domestic and commercial environments, this compact RCBO combines residual current detection with overload and short-circuit protection in a single module, saving space inside your consumer unit while meeting electrical safety requirements.
Featuring a Type A residual current characteristic, this RCBO detects both standard alternating and pulsating DC fault currents, providing broader protection for modern circuits with electronic appliances and variable speed drives. With a 30mA residual current sensitivity, it ensures essential protection against electric shock and reduces the risk of fire caused by earth leakage faults.
The 32 ampere rated current and B curve tripping characteristic make this RCBO suitable for protecting lighting circuits, socket circuits, and general power feeds where moderate inrush currents are expected. Its 6kA short-circuit breaking capacity ensures reliable interruption of fault currents up to 6000 amps, enhancing overall system safety.
Compact in design, the NB3LEG-B32 easily fits on standard DIN rails, simplifying installation in new consumer units or when upgrading existing boards. By combining both residual current device (RCD) and miniature circuit breaker (MCB) functions, it reduces clutter and increases usable space within your distribution board.
Whether you are an electrician specifying protection for a new installation or a DIY enthusiast upgrading a board, this RCBO delivers dependable performance, meets industry standards, and helps ensure compliance with current electrical safety regulations.
Product Specifications
Product Specifications
Electrical Specifications
- Rated Current (In): 32A
- Number of Poles: 1P+N
- Tripping Curve: B Curve (3-5 In)
- Residual Current Type: Type A
- Rated Sensitivity (IΔn): 30mA (0.03A)
- Rated Voltage (Ue): 240V AC
- Rated Frequency: 50Hz
- Rated Short-circuit Capacity (Icn): 6,000A (6kA)
- Rated Residual Making and Breaking Capacity (IΔm): 3,000A
- Insulation Voltage (Ui): 500V
- Rated Impulse Withstand Voltage (Uimp): 4,000V
- Break Time under IΔn: ≤ 0.1s
- Energy Limiting Class: 3
- 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
- Connection Direction: From top
- Terminal Size (Cable): Up to 10mm² (18-8 AWG)
- Terminal Size (Busbar): Up to 16mm² (18-5 AWG)
- Tightening Torque: 2.0 N·m (18 In-lbs)
- Electrical Life: 2,000 operations
- Mechanical Life: 2,000 operations
- Protection Degree: IP20
- Contact Position Indicator: Yes (Visual status window)
- Pollution Degree: 2
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
Key Features
- Space-Saving Design: Utilizes a single-module width to maximize space within consumer units and distribution boards.
- Type A Protection: Specifically designed to detect residual currents associated with modern electronic equipment, such as computers and LED drivers.
- Safety Focused: Provides crucial protection against overloads, short circuits, and earth leakage faults, reducing the risk of fire and electric shock.
- B-Curve Performance: Optimized for the protection of people and long cable lengths in systems where low inrush currents are expected.
Standards & Compliance
- Primary Standard: BS EN 61009-1 / EN 61009-1
- EMC Standard: EN 61543
- Directives: Low Voltage Directive 2014/35/EU, EMC Directive 2014/30/EU
- Certification: CE Marked, Intertek Verified
Product Downloads
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