NDR-3 DIN Rail Earth Leakage Circuit Breaker (ELCB) – 2 Pole

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Description:
The NDR-3 Earth Leakage Circuit Breaker (ELCB) is a compact, DIN rail-mountable safety device designed to detect and disconnect supply in the event of earth leakage faults. It provides essential protection against electric shock and fire caused by current leakage to earth. This 2-pole device is ideal for residential and light commercial applications and is fully compliant with SANS 61008-1 and SANS 10142-1 standards.

Key Features:

• Rated Current (In): Typically 25A / 40A / 63A (model dependent)

• Poles: 2 Pole (Live + Neutral)

• Rated Voltage: 230V AC

• Rated Residual Operating Current (In): 30mA provides protection against direct contact

• Trip Type: Type AC detects alternating sinusoidal residual currents

• Sensitivity: Fast disconnection within milliseconds of fault detection

• Test Button: Built-in test button for regular functionality checks

• Mounting: Standard 35mm DIN rail (2-module width)

• Terminal Capacity: Up to 25mm² copper conductors

• Housing: Flame-retardant and impact-resistant thermoplastic casing

• Indicator: Visual status indication for ON/OFF/trip

Compliance & Standards:

• Compliant with SANS IEC 61008-1 (Residual Current Circuit Breakers without overcurrent protection)

• Meets wiring regulations per SANS 10142-1

• Compatible with all SABS-approved DB boards and enclosures

Applications:

• Residential DB boards for personal safety

• Protection of socket outlets, lighting circuits, or appliance feeds

• Use in bathrooms, kitchens, outdoor plugs, and wet areas

• Supplementary protection alongside circuit breakers (MCBs)

Installation Notes:

• Must be installed upstream of all protected circuits

• Not suitable for overload or short-circuit protection use with MCBs

• Monthly testing recommended using built-in test button

• Installation by a registered electrician is required by law

Packaging:

• Supplied individually in protective retail packaging

• Contractor packs available for bulk orders

• No mounting screws or busbars included