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Schneider 4P 63A 30mA ELCB (A9N16258) – Home

The Schneider Electric A9N16258 is a 63A 4P voltage-operated ELCB designed for residential installations requiring high-sensitivity earth leakage protection. It operates as a main incomer on a 400V system to detect 30mA leakage currents, providing essential safety for occupants and property.

Quick Answer

You should buy the Schneider A9N16258 ELCB if your Indian home demands superior earth leakage protection as a main incomer. Its 4P 63A 30mA design trips within 40ms, safeguarding against fatal shocks on a 400V system. This device is an essential investment for robust electrical safety and peace of mind in residential installations.

✓Rapid shock prevention—30mA sensitivity trips the circuit in ≤300ms at 1x rated residual current.
✓High-durability 63A rated current supports whole-house residential loads for 10,000 electrical cycles.
✓Resists severe electrical surges—6kV impulse withstand prevents nuisance damage to the 400V device.
✓10kA conditional short circuit rating ensures safety when used with a required backup MCB.
✓Superior fire safety housing—glow wire tested at 960°C and UL94 V-0 flammability rated.
✓Compact 4-module (72mm) width fits standard 35mm DIN rail distribution boards without modification.

This Schneider A9N16258 ELCB is ideal for homeowners, electricians, and builders prioritising critical earth leakage protection in residential 400V main incomer setups. Avoid if you require industrial-grade protection or a standard RCCB, as this is a specific voltage-operated ELCB solution.

Product Overview
The Schneider Electric A9N16258 is a 63A 4P voltage-operated ELCB designed for residential installations requiring high-sensitivity earth leakage protection. It operates as a main incomer on a 400V system to detect 30mA leakage currents, providing essential safety for occupants and property.

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Engineering Analysis
The 30mA sensitivity is vital for residential safety as it trips within ≤40ms at 5x Idn, well before heart fibrillation occurs. The 630A making/breaking capacity allows the device to handle significant connection stresses, while the 4P configuration ensures the neutral is disconnected during a fault for complete circuit isolation.

Technical Support & FAQs