The Siemens 5SV33443 5SV3344-3 is a residual current circuit breaker (RCCB) featuring a 40 A rating and a tripping sensitivity of 0.03 A at 400 V. It is designed to protect electrical circuits by detecting and interrupting earth leakage currents, enhancing safety in residential, commercial, or industrial environments. Typical applications include use in distribution boards where protection against earth faults is essential. https://elecena.pl/product/28157055/siemens-5sv33443-rccb-4-pole-40a-30ma-400v-residual-current-device 2025-03-31 https://elecena.pl/product/28157055/siemens-5sv33443-rccb-4-pole-40a-30ma-400v-residual-current-device 2026-05-18 https://elecena.pl/product/28157055/siemens-5sv33443-rccb-4-pole-40a-30ma-400v-residual-current-device 2026-06-10 https://elecena.pl/product/28157055/siemens-5sv33443-rccb-4-pole-40a-30ma-400v-residual-current-device 2026-07-03