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Legrand DX3 RCCB DP 25A 300mA Specifications, Features & Compatibility Guide
✓ Who Should Buy
- • performance suitable for residential spaces.
- •Verified efficiency of standard rating for reduced long-term operational costs.
- •Structural stability for consistent cleaning under rigorous use cases.
- •Hardware durability via premium components and advanced technology.
- •Built-in grid protection with Standard power cycle voltage management.
✕ Who Should Avoid
- •Spaces or usage requirements exceeding residential rated capacity.
- •Installations prioritizing minimum capital expenditure over high-efficiency performance.
- •Unstable grid conditions exceeding the functional threshold of Standard power cycle.
- •Environments incompatible with electrical safety devices physical and thermal dissipation specs.
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.
Technical Support & FAQs
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.