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Legrand DX3 RCBO AC Type FP 40A 300mA

Legrand DX3 RCBO AC Type FP 40A 300mA Specifications, Features & Compatibility G

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.

Quick Answer

Yes, you should buy the Legrand DX3 4P 40A 300mA RCBO if you seek a robust, all-in-one safety solution for your residential electrical system in India. It uniquely combines earth leakage, overload, and short-circuit protection, simplifying installation and enhancing reliability for crucial final circuits. This BIS-certified device offers peace of mind with its comprehensive fault protection, eliminating the need for a separate backup MCB.

This Legrand DX3 RCBO is a crucial investment for Indian homeowners prioritizing advanced, integrated electrical safety and compliance for their final circuits. Avoid if your application demands commercial-grade capacity or if your primary focus is minimal capital outlay over long-term, comprehensive protection and efficiency.

✓ 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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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