SCHNAP Logo

Making Trade Life Easy!
Trade Discount 25%

RCBO 1P+N C Curve 40A 30mA Type A 6kA NB3LEG Chint

BRAND: CABAC
SKU: 312411
$48.40 List price: $64.50
+ −
30 Days Return Electricians Unlock Trade Access
Chint NB3LEG RCBO features 1P+N 40A C curve, 6kA breaking capacity, 30mA Type A earth leakage protection, DIN rail mount. Ideal for final subcircuits.

Alternatively Known As: NB3LEG-C40, single-module RCBO, residual current circuit breaker with over-current protection

Technical Specifications
  • Rated Current: 40 A
  • Rated Voltage: 240 V AC
  • Poles: 1P+N
  • Tripping Curve: C curve, 5–10 × In
  • Residual Current Type: Type A, AC and pulsating DC detection
  • Rated Residual Operating Current: 30 mA
  • Rated Short-Circuit Capacity: 6 kA
  • Rated Residual Making and Breaking Capacity: 3 kA
  • Rated Frequency: 50 Hz
  • Maximum Break Time at Rated Residual Current: ≤0.1 s
  • Rated Impulse Withstand Voltage: 4 kV
  • Rated Insulation Voltage: 500 V
  • Protection Degree: IP20
  • Terminal Capacity: Up to 16 mm² cable
  • Tightening Torque: 2 N·m
  • Mounting: 35 mm DIN rail to EN 60715
  • Connection: Cable, U-type busbar or pin-type busbar
  • Dimensions (H x L x W): 98mm x 77mm x 18mm
  • Weight: 0.12 kg
Key Features
  • Combines over-current, short-circuit and residual-current protection in one device
  • Type A earth-leakage protection detects sinusoidal AC and pulsating DC residual currents
  • C-curve protection suits resistive and inductive loads with low inrush current
  • Compact one-module 1P+N construction for distribution boards
  • Visible contact position indicator
  • Suitable for residential, commercial and general-purpose low-voltage final circuits
  • SAA-approved model range and listed as a compliant RCBO model by Energy Safe Victoria
Professional Installation Requirements
  • Installation, testing and commissioning must be carried out by a licensed electrician in accordance with AS/NZS 3000 and applicable electrical safety requirements. Verify system compatibility, prospective fault current, discrimination and local approval requirements before installation.
Applications
  • Final subcircuits in residential switchboards
  • Lighting and socket outlet circuits
  • Small motors and mixed resistive or inductive loads
  • Commercial and light-industrial distribution boards
  • Replacement or upgrade of compatible DIN-mounted circuit protection devices
Standards & Compliance
  • AS/NZS 61009.1:2015 — applicable Australian/New Zealand product standard for RCBOs
  • AS/NZS 3000:2018 — installation and selection requirements for electrical equipment
  • SAA approval for CHINT NB3LEG-40 model range
  • Recognised as a compliant RCBO model by Energy Safe Victoria
Environmental Benefits
  • Combines two protection functions in one compact device, reducing switchboard space and material use
  • DIN-rail construction allows replacement of the protective device without replacing the complete switchboard assembly
  • Long mechanical and electrical operating life can reduce replacement frequency and associated waste
  • Supports safer, more reliable electrical installations, helping protect connected equipment from fault damage
Warranty Information

CHINT’s general warranty policy provides 27 months from the date of manufacture for other low-voltage apparatus, including this type of RCBO, when sold through authorised channels. Contract terms may apply.

Available Now

Available through authorised CHINT distributors in Australia.

Related Products