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ABB 2P 40A 300mA RCCB (FW202) – Residential

The ABB FW202 is a 40A, 2-pole (2P) Residual Current Circuit Breaker (RCCB) specifically engineered for residential main incomer applications.

Quick Answer

You should purchase the ABB FW202 2P 40A 300mA RCCB if you need robust main incomer fire protection for a residential setup in India. Its 300mA sensitivity is ideal for preventing nuisance tripping across multiple circuits, offering reliable safety. Remember, this Type AC RCCB requires pairing with a suitable backup MCB for complete overload and short-circuit protection. This ensures comprehensive electrical safety for your entire home.

✓Safeguards property against leakage-induced fires — 300mA sensitivity triggers shutdown within 300ms.
✓Rated Current of 40A — supports standard residential loads while operating within 180–264V range.
✓Durable construction for years of safety — mechanical endurance rated at 10,000 cycles.
✓10kA breaking capacity — manages high fault levels to prevent equipment destruction during shorts.
✓Compact 36mm DIN rail mounting — occupies only 2 modules in your distribution board.
✓Flame-retardant housing — withstands 850°C glow wire tests and meets UL94 V2 standards.

Opt for the ABB FW202 if fire prevention at your residential main incomer is paramount, especially where cumulative leakage demands a 300mA device. Avoid if you require integrated overload protection or lower sensitivity for individual circuit shock protection. This ensures precise application for your Indian electrical infrastructure.

Product Overview
The ABB FW202 is a 40A, 2-pole (2P) Residual Current Circuit Breaker (RCCB) specifically engineered for residential main incomer applications. This Type AC device operates within a 180–264V range to provide dedicated fire protection by monitoring for a 300mA residual current threshold. Manufactured in Italy, it is a non-overload protected device that must be paired with a backup MCB to ensure complete circuit safety.

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Engineering Analysis
Selecting a 300mA sensitivity is vital for fire prevention at the main incomer where lower sensitivities might cause nuisance tripping from cumulative leakage across multiple sub-circuits. The 10kA conditional short circuit rating ensures the device maintains integrity during high-fault events, while the 4kV impulse withstand voltage protects against atmospheric surges. Its 2P configuration with solid neutral is essential for safely isolating residential 230V systems during a trip event.

Technical Support & FAQs