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Legrand 2P 25A 300mA RCCB (DX3) – Residential

The Legrand DX3 RCCB DP 25A 300mA is a high-performance 2-pole residual current circuit breaker designed for 240V residential distribution.

Quick Answer

Yes, purchase the Legrand DX3 RCCB DP 25A 300mA if your priority is comprehensive fire protection for your residential main line. Its 300mA sensitivity precisely targets fire hazards from insulation failure, avoiding nuisance trips common with lower ratings, while providing a strong 10kA short circuit capacity for Indian homes. This is a crucial upgrade for enhanced safety.

✓Protects your property from fire-causing leakage — 300mA residual current sensitivity trips the circuit instantly.
✓Tested for extreme thermal resistance — 850°C glow wire test ensures the housing will not support combustion.
✓Reacts to faults in fractions of a second — instantaneous tripping occurs in ≤300ms at rated residual current.
✓Halogen-free and RoHS compliant construction — sustainable materials prevent toxic gas release during overheating.
✓Designed for simple, secure wiring — screw terminals accommodate rigid cables up to 35mm² for low-resistance connections.
✓Maintains safety in fluctuating power grids — operational voltage range spans 180V to 264V to suit Indian conditions.

This Legrand DX3 RCCB is ideal for homeowners prioritizing primary fire protection on their main incomer in 240V Indian residences, needing robust 300mA earth leakage defense without nuisance tripping. Avoid if specific 30mA personal shock protection is required, or for non-residential, higher current applications.

Product Overview
The Legrand DX3 RCCB DP 25A 300mA is a high-performance 2-pole residual current circuit breaker designed for 240V residential distribution. Installed as a main incomer, this Type AC device provides essential earth leakage protection by monitoring current imbalances at a 50 Hz frequency. It serves as the primary defense against fire hazards in modern Indian households where insulation failure poses a significant risk.

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Engineering Analysis
The 300mA sensitivity is specifically engineered for fire protection in domestic settings where a 30mA device might cause nuisance tripping but higher current leakage could ignite flammable materials. With a 10kA conditional short circuit capacity, this unit handles significant fault energy when coordinated with an upstream MCB, while the 500A making/breaking capacity ensures the contacts remain intact during high-inrush events. The 2-module 36mm width allows for standard DIN rail integration without requiring excessive space in the distribution board.

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