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Havells 63A 4P 100mA ELCB (DHRGCRFF100063) –

The Havells DHRGCRFF100063 is a 63A 4P (4P) voltage operated ELCB specifically engineered for residential safety. This device acts as a primary earth leakage monitor, triggering an immediate disconnect when it senses a 100mA residual current. It is installed at the main incomer to provide total system isolation during fault conditions.

Quick Answer

You should buy the Havells DHRGCRFF100063 if your primary concern is robust electrical fire prevention in a residential setting. Its 100mA sensitivity precisely targets fire risks while minimizing false alarms, a crucial balance for typical Indian household circuits. This 63A 4P ELCB is ideal for installation at your home's main incomer, offering comprehensive system protection.

✓Rapid fire hazard mitigation — the 100mA sensitivity triggers a shutdown in ≤300ms.
✓10kA conditional short circuit rating ensures the device survives high-energy electrical faults.
✓Efficient residential design — the 4-module width fits standard 35mm DIN rail distribution boards.
✓2kV surge withstand capability protects the internal 50 Hz mechanism from transient spikes.
✓Durable mechanical components — tested for 10,000 cycles to ensure decades of reliable operation.
✓UL94 V 0 flammability rating means the halogen-free housing self-extinguishes to prevent flame spread.

Choose the Havells DHRGCRFF100063 for comprehensive electrical fire protection at your home's main incomer, especially if you prioritize robust system isolation over individual shock prevention. This 63A 4P ELCB with 100mA sensitivity is perfect for residential setups seeking balanced safety without nuisance tripping.

Product Overview
The Havells DHRGCRFF100063 is a 63A 4P (4P) voltage operated ELCB specifically engineered for residential safety. This device acts as a primary earth leakage monitor, triggering an immediate disconnect when it senses a 100mA residual current. It is installed at the main incomer to provide total system isolation during fault conditions.

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Engineering Analysis
The 100mA sensitivity level is specifically chosen to provide a balance between preventing electrical fires and avoiding nuisance tripping in residential circuits. A 630A making and breaking capacity allows the device to safely handle the high inrush currents typical of domestic appliance startups. The 4P configuration is essential for 240V systems as it switches the neutral line to ensure zero potential on all load-side conductors during a trip.

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