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Legrand DX3 RCCB FP 40A 30mA

Legrand DX3 RCCB FP 40A 30mA Specifications, Features & Compatibility Guide

The Legrand DX3 RCCB FP 40A 30mA is a four-pole (4P) residual current circuit breaker designed for 230V residential applications. Installed as a main incomer, it provides dedicated earth leakage protection by monitoring the balance between phase and neutral currents. This 350g device is essential for modern distribution boards to prevent shock hazards.

Quick Answer

Yes, the Legrand DX3 RCCB FP 40A 30mA is a mandatory investment for modern Indian apartments requiring reliable earth leakage protection. Its 30mA sensitivity ensures human safety by tripping instantly during minor imbalances, while the 40A rating handles standard household loads efficiently.

Invest in the Legrand DX3 40A RCCB if you prioritize long-term residential safety and IS-certified compliance. Avoid this specific 30mA unit for heavy industrial machinery or installations exceeding its 40A rated residential capacity.

✓ 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 FP 40A 30mA is a four-pole (4P) residual current circuit breaker designed for 230V residential applications. Installed as a main incomer, it provides dedicated earth leakage protection by monitoring the balance between phase and neutral currents. This 350g device is essential for modern distribution boards to prevent shock hazards.

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Engineering Analysis
A 30mA sensitivity rating is specifically chosen for residential safety because it trips before leakage current reaches levels that cause cardiac arrest. The 10kA breaking capacity ensures the device maintains structural integrity during high-fault events when paired with a backup MCB. Its 4-module width of 72mm allows for standard integration into 35mm DIN rail setups while managing a 40A continuous load.

Technical Support & FAQs