The 5SY4230-7: Ambient temperature range of -40 to 75 °C with derating per humidity profiles (95 % up to 55 °C, 55 % up to 70 °C, 35 % at 75 °C) ensures the breaker performs in outdoor cabinets, near ovens, or in cold storage environments.
This breaker is built for distribution boards, sub-panels, and industrial control enclosures in mechanical engineering and industry. Dual compliance with both IEC 60898-1 (household-type) and IEC 60947-2 (industrial) means the same part number can be specified across the plant floor and the building's power distribution — one line item for procurement. Combined (busbar/terminal) top and bottom connections simplify wireways and busbar routing. IP20 with conductors connected is standard for enclosed panels.