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RCBO 3P+N C Curve 20A 30mA Type A 10kA NB3L Chint

BRAND: CABAC
SKU: 479973
$175.80 List price: $234.40
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Chint NB3L RCBO features 3P+N 20A C curve, 10kA breaking capacity, 30mA Type A earth leakage protection, DIN rail mount. Ideal for final subcircuits.

Alternatively Known As: 3-Phase RCBO, 4-Pole RCBO, Residual Current Circuit Breaker with Overcurrent Protection, Safety Switch Circuit Breaker

Technical Specifications
  • Product Series: NB3L-40
  • Device Type: Residual current circuit breaker with overcurrent protection
  • Number of Poles: 3P+N, four-pole configuration with three protected poles
  • Rated Current: 20A
  • Tripping Curve: C curve
  • Rated Residual Operating Current: 30mA
  • Residual Current Type: Type A
  • Rated Voltage: 400/415V AC
  • Frequency: 50/60Hz
  • Rated Short-Circuit Capacity: 10kA
  • Operating Short-Circuit Capacity: 7.5kA
  • Residual Making and Breaking Capacity: 6kA
  • Terminal Capacity: 1mm² to 25mm²
  • Mounting: TH35-7.5 DIN rail
  • Electrical Endurance: 10,000 operations
  • Mechanical Endurance: 20,000 operations
  • Ingress Protection: IP20
  • Dimensions (H x L x W): 82.4mm x 49.5mm x 71mm
  • Weight: 0.35 kg
Key Features
  • Combines overcurrent, short-circuit and earth-leakage protection in one device
  • Type A residual-current detection responds to sinusoidal AC and pulsating DC residual currents
  • C-curve overcurrent protection suits general final circuits with moderate inrush currents
  • Four-pole 3P+N configuration switches the neutral with the three phases
  • 10kA rated short-circuit breaking capacity
  • Compatible with cable, U-type busbar and pin-type busbar connections
  • DIN rail mounting for distribution boards and switchboards
  • Integrated test function for residual-current protection
Professional Installation Requirements
  • Installation, testing and commissioning must be performed by a licensed electrician in accordance with AS/NZS 3000, applicable equipment requirements and local electrical regulations. Confirm suitability for the intended system and verify required Australian approval markings before installation.
Applications
  • Final subcircuits in residential distribution boards
  • Commercial and industrial distribution boards
  • Three-phase circuits requiring combined overcurrent and earth-leakage protection
  • Protection of cables and equipment against overload and short circuit
  • Additional personnel protection against residual current faults
Standards & Compliance
  • AS/NZS 61009.1 is the applicable Australian/New Zealand product standard for RCBOs; verify the specific unit carries the required Australian approval and RCM marking before installation
  • IEC/EN 61009-1 performance standard declared for the NB3L-40 series
Environmental Benefits
  • RoHS 2.0 environmental protection requirements are specified for the product
  • Combines two protection functions in one compact device, reducing switchboard component count and material use
  • Durable electrical and mechanical endurance can help reduce replacement frequency and electrical waste
Warranty Information

CHINT specifies an 18-month product quality guarantee in the NB3L-40 user instructions. CHINT's general policy for other low-voltage apparatus specifies 27 months from the date of manufacture when purchased through authorised sales channels; Australian warranty terms may vary by supply contract.

Available Now

Available through authorised CHINT distributors in Australia.

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