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Schneider 4P 40A 30mA ELCB (A9N16259) – Residential

The Schneider Electric A9N16259 is a 4P, 40A voltage-operated ELCB designed for residential safety. This main incomer device monitors earth leakage currents, providing instantaneous tripping at a 30mA residual current threshold to prevent electric shock and fires.

Quick Answer

Yes, the Schneider A9N16259 is an essential buy for anyone prioritizing superior electrical safety in their Indian home. Its 4P 40A capacity makes it ideal for main incoming supply, providing rapid 30mA earth leakage protection to prevent severe shocks and potential fires. This device is a critical upgrade for new installations or replacing outdated safety mechanisms.

✓Protects your family from fatal shocks — 30mA residual current triggers instantaneous power cut.
✓630A making and breaking capacity — ensures the device handles high electrical stress without contact damage.
✓Reduces energy waste in your distribution board — power loss is limited to just 1.5W per pole.
✓6kV impulse withstand voltage — provides robust protection against atmospheric surges and voltage spikes.
✓Guarantees long-term operational reliability — mechanical endurance rated for 20,000 cycles.
✓4-module (72mm) unit width — fits standard residential distribution boards on 35mm DIN rails.

This Schneider A9N16259 ELCB is perfect for homeowners upgrading their main electrical incomer seeking robust 30mA human life protection. Avoid if you require a lower amperage device for a specific branch circuit, as its 40A 4P configuration is optimized for primary residential safety.

Product Overview
The Schneider Electric A9N16259 is a 4P, 40A voltage-operated ELCB designed for residential safety. This main incomer device monitors earth leakage currents, providing instantaneous tripping at a 30mA residual current threshold to prevent electric shock and fires.

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Engineering Analysis
The 30mA sensitivity is essential for human life protection because it disconnects power before cardiac arrest occurs. A 630A making and breaking capacity ensures the device can safely handle sudden surges during switching operations at the 400V rated voltage. The 4P configuration allows for complete isolation of both three phases and the neutral, which is critical for total residential circuit safety.

Technical Support & FAQs