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Legrand DX3 RCBO AC Type FP 40A 300mA Specifications, Features & Compatibility G
✓ 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 RCBO AC Type FP 40A 300mA is a four-pole safety device specifically engineered for residential final circuits. It integrates earth leakage, overload, and short circuit protection into a single 72mm unit, eliminating the need for a separate backup MCB. Rated for 415V at 50Hz, it serves as a robust shield for whole-house electrical networks against multiple fault types.
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NSR ELECTRICALS AND BUILDING SOLUTIONS
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Engineering Analysis
The 300mA sensitivity is specifically designed for fire protection in residential settings where a 30mA trip might cause nuisance tripping but higher ratings are unsafe. A 6kA breaking capacity and 10kA conditional short circuit rating provide a vital safety margin for standard residential fault levels. The 4P configuration ensures the neutral is switched, providing total circuit isolation during a 4kV impulse withstand event.
Technical Support & FAQs
Engineering Analysis
The 300mA sensitivity is specifically designed for fire protection in residential settings where a 30mA trip might cause nuisance tripping but higher ratings are unsafe. A 6kA breaking capacity and 10kA conditional short circuit rating provide a vital safety margin for standard residential fault levels. The 4P configuration ensures the neutral is switched, providing total circuit isolation during a 4kV impulse withstand event.