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Havells 2P 40A 100mA ELCB (DHRGCTDF100040) –

The Havells DHRGCTDF100040 is a 40A, 2-pole voltage-operated ELCB designed specifically for residential safety. Installed in the main distribution board, this 240V device provides 100mA residual current protection to mitigate fire hazards and prevent equipment damage.

Quick Answer

Yes, the Havells DHRGCTDF100040 is a strong choice for residential fire safety in India. Its 100mA sensitivity prevents fire hazards from electrical leakage, optimized to avoid nuisance tripping in main distribution boards. This 2P 40A ELCB delivers reliable protection and a 10kA breaking capacity against severe electrical faults.

✓Protects residential structures from fire — 100mA residual current sensitivity.
✓10kA breaking capacity — ensures safety during high-magnitude electrical faults.
✓Durable construction for Indian climates — operates from -5°C to +55°C.
✓Instantaneous tripping class — disconnects power in ≤40ms at 5x rated leakage.
✓Compact 2-module design — fits standard 36mm slots in distribution boards.
✓High surge resilience — 2kV surge withstand capability protects internal components.

The Havells DHRGCTDF100040 is ideal for Indian homeowners prioritizing fire safety for main distribution boards, offering 100mA protection to prevent damage without nuisance trips. Avoid if personal shock protection (30mA) is needed, or for non-residential use.

Product Overview
The Havells DHRGCTDF100040 is a 40A, 2-pole voltage-operated ELCB designed specifically for residential safety. Installed in the main distribution board, this 240V device provides 100mA residual current protection to mitigate fire hazards and prevent equipment damage.

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Engineering Analysis
The 100mA sensitivity is optimized for fire protection in residential circuits where 30mA might cause nuisance tripping but higher levels remain unsafe for property. A 10kA breaking capacity ensures the device remains intact during high-energy short circuit events at the main incomer. Dual-pole (2P) configuration with a switched neutral provides complete isolation of the circuit during a fault condition.

Technical Support & FAQs