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ABB 4P 63A 100mA ELCB (FW204) – Residential

The ABB FW204 63A-100mA is a 4P voltage-operated ELCB specifically engineered for the main incomer of residential distribution boards. This 400V Italian-made device provides critical earth leakage protection, ensuring a solid neutral connection across its 4-module width.

Quick Answer

You should absolutely consider the ABB FW204 4P 63A 100mA ELCB if you need dedicated earth leakage protection for your residential main incomer in India. Its 100mA sensitivity is expertly chosen for fire prevention without the nuisance tripping common with 30mA units in residential settings. This ensures robust and reliable safeguarding of your entire home's electrical system against dangerous faults.

✓Prevents electrical fires by detecting low-level leakage — 100mA Type AC residual current sensitivity.
✓10kA short circuit capacity ensures the device survives significant fault currents without internal failure.
✓Rapidly disconnects power during a ground fault — instantaneous tripping occurs in ≤300ms at 1× Idn.
✓63A rated current supports heavy residential loads across its compact 4-module DIN rail footprint.
✓Withstands high-voltage transients for enhanced durability — 4kV impulse withstand voltage rating.
✓IP20 rated housing protects internal components from solid objects larger than 12.5mm during daily operation.

Choose the ABB FW204 ELCB for superior fire prevention and robust main incomer protection in Indian residential settings. Avoid if your priority is 30mA direct human-contact shock protection, or if you're seeking a less resilient, budget-oriented device.

Product Overview
The ABB FW204 63A-100mA is a 4P voltage-operated ELCB specifically engineered for the main incomer of residential distribution boards. This 400V Italian-made device provides critical earth leakage protection, ensuring a solid neutral connection across its 4-module width.

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Engineering Analysis
The 100mA sensitivity level is specifically chosen for fire prevention in residential settings where 30mA units might experience nuisance tripping. Its 10kA short circuit withstand and 630A making/breaking capacity ensure the device maintains structural integrity during severe electrical faults common in urban power grids.

Technical Support & FAQs