Legrand DX3 RCBO AC Type FP 25A 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 25A 300mA is a four-pole integrated safety device designed for residential final circuits. This 415V unit provides comprehensive protection against overloads, short circuits, and earth leakage, eliminating the need for a separate backup MCB. Certified with the BIS marking, it manages currents up to 25A while providing fire-level sensitivity of 300mA.

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Engineering Analysis
A 300mA sensitivity is specifically engineered for fire protection in residential distribution boards where cumulative leakage might cause nuisance tripping at lower levels. The 6kA breaking capacity and 10kA conditional short circuit rating ensure the device can safely interrupt faults at the incomer. Switched neutral protection across 4 poles provides complete isolation of the circuit during a fault event in a 180–264V range.

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