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Siemens 2P 32A 30mA RCBO (5SU1356-0KK32) – Home

The Siemens 5SU1356-0KK32 is a specialized 32A, 30mA RCBO designed for high-performance residential safety. As a 2P (1P+N) device, it provides combined earth leakage and overcurrent protection for final circuits. It is engineered to operate within a 184V to 264V range, ensuring stability across varying power conditions in Indian homes.

Quick Answer

Invest in the Siemens 5SU1356-0KK32 if you need a space-saving 1P+N solution that handles both short circuits and life-threatening leakage. Its 6kA breaking capacity and Class 3 energy limiting ensure your wiring survives high-thermal stress. It is a premium, high-reliability choice for Indian luxury flats.

✓Stops leakage currents instantly — 30mA Type AC sensitivity trips the circuit in ≤300ms.
✓The 2P (1P+N) design utilizes switched neutral protection for total circuit isolation.
✓Prevents fire hazards from faulty wiring — 10kA conditional short circuit rating provides robust safety.
✓Occupies only 2 modules (36mm) on a standard 35mm DIN rail for easier installation.
✓Built for decades of service — mechanical endurance is tested to 10,000 operation cycles.
✓Resistant to high heat environments — glow wire tested at 960°C and UL94 V-0 flammability rated.

Select the 5SU1356-0KK32 for high-risk residential zones like kitchens, but skip it for heavy industrial motors requiring D-curve tripping. It remains the top pick for those seeking Siemens' compact, 6kA fault-rated protection.

Product Overview
The Siemens 5SU1356-0KK32 is a specialized 32A, 30mA RCBO designed for high-performance residential safety. As a 2P (1P+N) device, it provides combined earth leakage and overcurrent protection for final circuits. It is engineered to operate within a 184V to 264V range, ensuring stability across varying power conditions in Indian homes.

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Engineering Analysis
The 30mA residual current sensitivity is essential for life safety, ensuring the device trips in ≤40ms during high-level leakage (5x Idn). Its 6kA breaking capacity is paired with an Energy Limiting Class 3 rating to minimize thermal stress on conductors during faults. The B trip curve is specifically calibrated for residential loads, providing immediate response to short circuits while avoiding nuisance trips.

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