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Schneider 4P 100A 30mA RCCB (A9R11491) – Commercial

The Schneider Electric A9R11491 is a high-capacity 100A 4P RCCB designed for 400V commercial electrical systems. This Type AC device is installed at the main incomer to provide specialized earth leakage protection by monitoring current balance across all four poles. It operates on a 50 Hz frequency and ensures safety by disconnecting power the moment leakage is detected.

Quick Answer

Invest in the Schneider A9R11491 if your commercial or industrial setup in India requires top-tier earth leakage protection at the main incomer. Its 100A 4P 30mA specification is engineered for critical life safety, providing rapid disconnection within milliseconds to prevent severe injury or fatality in 400V systems. This RCCB is crucial for compliance and robust electrical safety.

✓Safeguards staff from high-voltage shocks — 30mA sensitivity trips in ≤300ms at rated residual current.
✓Instantaneous tripping class ensures power is cut immediately upon fault — 50 Hz frequency compatible.
✓Provides robust defense in complex commercial grids — 10kA conditional short circuit rating.
✓960°C Glow Wire Test compliance — high-grade enclosure resists ignition even under extreme thermal stress.
✓Accommodates industrial-grade wiring — screw terminals support 1-35 mm² rigid cables for 100A loads.
✓Clear diagnostic feedback — integrated trip indicator and blue test button for simplified maintenance.

This Schneider A9R11491 is essential for Indian commercial sites needing 30mA earth leakage protection at their 100A 4P main incomer. It guarantees unmatched life safety and compliance for 400V systems with rapid fault detection. Avoid if Type B sensitivity or a lower current rating is required.

Product Overview
The Schneider Electric A9R11491 is a high-capacity 100A 4P RCCB designed for 400V commercial electrical systems. This Type AC device is installed at the main incomer to provide specialized earth leakage protection by monitoring current balance across all four poles. It operates on a 50 Hz frequency and ensures safety by disconnecting power the moment leakage is detected.

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Engineering Analysis
The 30mA sensitivity level is critical for life safety because it triggers a shutdown in ≤40ms at 5x Idn, well within the threshold to prevent cardiac arrest. Its 1000A making/breaking capacity ensures the contacts can safely manage reconnection during faults at the main incomer without welding. The 4P (4P) configuration is essential for commercial 400V circuits to ensure both phases and the neutral are isolated during a trip event.

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