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Legrand 4P 32A 300mA RCBO (DX3) – residential

The Legrand DX3 RCBO AC Type FP 32A 300mA is a four-pole integrated safety solution designed for residential distribution boards. This 32A device functions as both a circuit breaker and an earth leakage protector, monitoring for residual currents up to 300mA. It provides essential protection against overloads and short circuits without needing a separate backup MCB.

Quick Answer

Absolutely, invest in the Legrand DX3 4P 32A 300mA RCBO if you need a robust, all-in-one safety device for your main residential incomer in India. Its 300mA sensitivity is expertly calibrated to prevent fire risks without nuisance tripping common with lower sensitivities. This single unit simplifies your distribution board, offering 6kA breaking capacity for superior protection against high fault currents in urban grids. It's an intelligent upgrade for enhanced household electrical safety.

✓Reduces fire risk from electrical leaks — 300mA sensitivity provides broad-spectrum residential protection.
✓6kA breaking capacity handles significant short-circuit events — protects your wiring from high-energy damage.
✓Compact 4-module (72mm) design — fits standard DIN rail 35mm residential distribution boards.
✓Instantaneous tripping class — disconnects power in ≤300ms at 1× Idn to minimize fault duration.
✓Built-in overload and short circuit protection — eliminates the cost and space of a backup MCB.
✓10,000 cycle mechanical endurance — ensures long-term reliability for your home's main electrical incomer.

This Legrand DX3 RCBO is tailor-made for Indian residential main incomers, offering crucial fire protection at 300mA without nuisance tripping. It's perfect for homeowners seeking robust, all-in-one fault current safety. Avoid if you need finer 30mA protection for sensitive individual circuits.

Product Overview
The Legrand DX3 RCBO AC Type FP 32A 300mA is a four-pole integrated safety solution designed for residential distribution boards. This 32A device functions as both a circuit breaker and an earth leakage protector, monitoring for residual currents up to 300mA. It provides essential protection against overloads and short circuits without needing a separate backup MCB.

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Engineering Analysis
A 300mA sensitivity is specifically calibrated for fire prevention in residential applications where a 30mA device might cause frequent tripping on the main incomer. The 6kA breaking capacity is critical for modern installations to safely interrupt high fault currents common in urban Indian grids. The 4P (4P) configuration ensures the switched neutral is disconnected during a fault, providing complete isolation for the entire final circuit.

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