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Schneider 4P 63A 30mA ELCB (A9N16256) – Residential

The Schneider Electric A9N16256 is a 63A 4P voltage-operated ELCB designed for 400V residential applications. This 4-module device provides specialized earth leakage protection as a main incomer to ensure safety across the entire distribution network. It features a 30mA sensitivity (Type AC) to detect and isolate hazardous leakage currents immediately.

Quick Answer

Yes, absolutely invest in the Schneider A9N16256 for superior earth leakage protection in your Indian residence. This 4P 63A 30mA ELCB is vital for safeguarding lives, offering rapid fault isolation (≤40ms) essential for preventing electric shock. Its 10kA conditional short circuit rating also ensures robust performance as a main incomer for 400V systems, providing peace of mind.

✓Protects residents from direct contact shocks — 30mA sensitivity trips power instantly.
✓10kA conditional short circuit rating ensures the device survives high-fault currents in domestic boards.
✓Maintains safety during atmospheric surges — 6kV impulse withstand prevents internal component failure.
✓20,000 cycle mechanical endurance provides decades of reliable manual switching and testing.
✓Resists extreme heat and fire spread — 960°C glow wire tested housing ensures structural safety.
✓Screw terminals support 1-25 mm² rigid cables for secure and low-resistance electrical connections.

This Schneider A9N16256 is essential for Indian homeowners and electricians prioritizing top-tier life safety in 400V residential installations requiring a dedicated 4P 63A 30mA ELCB incomer. Avoid if your setup is single-phase or you only need basic overload protection; this unit is for comprehensive three-phase earth fault detection.

Product Overview
The Schneider Electric A9N16256 is a 63A 4P voltage-operated ELCB designed for 400V residential applications. This 4-module device provides specialized earth leakage protection as a main incomer to ensure safety across the entire distribution network. It features a 30mA sensitivity (Type AC) to detect and isolate hazardous leakage currents immediately.

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Engineering Analysis
The 30mA sensitivity rating is critical for life safety, as it trips within ≤40ms at 5× Idn to prevent cardiac arrest from contact. With a 10kA conditional short circuit rating, this unit maintains structural integrity during high-fault events when coordinated with an upstream MCB. The 4P (4-pole) configuration ensures the neutral path is disconnected simultaneously, providing total isolation for sensitive residential circuits.

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