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Schneider 4P 40A 300mA RCCB (16753) – Industrial

The Schneider Electric 16753 is a professional-grade 40A, 4P Type B RCCB engineered for 400V industrial applications. As a 4-module wide safety device installed at the main incomer, it provides dedicated earth leakage protection to prevent fire in complex electrical networks.

Quick Answer

For Indian industrial facilities prioritizing fire safety over direct human contact protection, the Schneider 16753 is an essential investment. Its 300mA sensitivity is precisely calibrated for environments with inherent high leakage, ensuring robust earth fault detection and preventing costly fires. If you manage 400V networks requiring dedicated fire prevention, this 4P 40A RCCB provides uncompromising reliability.

✓Prevents industrial fire hazards — 300mA Type B residual current sensitivity triggers instantaneous shutdown.
✓10kA conditional short-circuit capacity — ensures the device remains functional after high-energy downstream faults.
✓Extends electrical equipment lifespan — 6kV impulse withstand voltage protects against atmospheric surges.
✓Tested for 20,000 mechanical cycles — provides durable switching performance in demanding industrial environments.
✓Rapid fault isolation — trips in ≤40ms at 5x rated residual current to minimize let-through energy.
✓Wide terminal compatibility — screw terminals accommodate 1-35 mm² rigid cables for secure heavy-duty wiring.

For Indian industrial facilities, the Schneider 16753 is a vital investment for robust fire prevention in 400V networks with high leakage. It’s strictly for asset protection, making it unsuitable where 30mA human shock safety is paramount or for residential use. Invest only for dedicated industrial infrastructure safeguarding.

Product Overview
The Schneider Electric 16753 is a professional-grade 40A, 4P Type B RCCB engineered for 400V industrial applications. As a 4-module wide safety device installed at the main incomer, it provides dedicated earth leakage protection to prevent fire in complex electrical networks.

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Engineering Analysis
The 300mA sensitivity level is specifically selected for fire prevention in industrial zones where high leakage is inherent, rather than 30mA human safety applications. A 10kA conditional short circuit rating ensures the 16753 survives heavy electrical faults when coordinated with a backup MCB. The 4P (4P) configuration is critical for 3-phase systems to ensure complete isolation of all lines including the neutral during a trip event.

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