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RCBO 3P+N 20A C Curve 30mA Type A 10kA NB3LEU Chint

BRAND: CABAC
SKU: 481358
$301.10 List price: $401.50
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Chint NB3LEU RCBO 3P+N C20 features 30mA Type A earth leakage protection, 10kA breaking capacity, and C curve to IEC/EN 61009-1. Ideal for final subcircuits.

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

Technical Specifications
  • Rated Current: 20A
  • Configuration: 3P+N, four-pole device with three protected phases and neutral pole
  • Tripping Curve: C curve, 5–10 times rated current
  • Residual Current Type: Type A
  • Rated Residual Operating Current: 30mA
  • Rated Voltage: 400/415V AC
  • Rated Frequency: 50/60Hz
  • Rated Short-Circuit Capacity: 10kA
  • Rated Residual Making and Breaking Capacity: 6kA
  • Maximum Break Time at Rated Residual Current: ≤0.1 seconds
  • Insulation Voltage: 500V
  • Impulse Withstand Voltage: 4kV
  • Protection Degree: IP20
  • Terminal Capacity: 1–25mm² cable
  • Terminal Tightening Torque: 2N·m
  • Mounting: 35mm DIN rail to EN 60715
  • Connection: Bottom entry
  • Electrical Endurance: 2,000 operations
  • Mechanical Endurance: 2,000 operations
  • Dimensions (H x L x W): 119mm x 77mm x 54mm
  • Weight: 0.4 kg
Key Features
  • Combines overload, short-circuit and earth leakage protection in one device
  • Type A detection responds to sinusoidal AC and pulsating DC residual currents
  • C-curve protection is suitable for resistive and inductive loads with moderate inrush current
  • 10kA short-circuit breaking capacity for higher fault-level installations
  • 3P+N configuration for three-phase final subcircuits
  • Contact position indicator for visual status checking
  • Compact three-module DIN-rail format
  • Suitable for cable, U-type busbar and pin-type busbar connections
Professional Installation Requirements
  • Installation, testing and maintenance must be performed by a licensed electrician or suitably qualified electrical professional with the supply isolated. Installation must comply with AS/NZS 3000, manufacturer instructions and applicable local electrical regulations.
Applications
  • Three-phase final subcircuits
  • Residential switchboards
  • Commercial electrical distribution boards
  • Industrial control panels and equipment supplies
  • Overload, short-circuit and additional earth leakage protection for three-phase circuits
Standards & Compliance
  • AS/NZS 61009.1 for residual current operated circuit-breakers with integral overcurrent protection
  • IEC/EN 61009-1
Environmental Benefits
  • RoHS 2.0 compliant construction helps restrict hazardous substances in electrical equipment
  • Integrated protection can reduce equipment damage and premature replacement following overload, short-circuit or leakage faults
  • Long electrical and mechanical endurance can reduce replacement frequency and associated material waste
Warranty Information

18-month CHINT product warranty against manufacturing defects, subject to the applicable sales-channel terms and conditions.

Available Now

Available through authorised CHINT distributors in Australia.

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