The 3531003B012 is a high-performance toggle switch from the 3500 series, designed for environmentally sealed applications with single-pole ON-OFF functionality and a 22° angle of throw. This switch features complete sealing to withstand 0.1 bar pressure, with front sealing to IP67 or IP69K via silicone membrane and rear sealing to IP64 through moulded-in terminal inserts. It is approved to European standards CECC 96000 and operates reliably across a temperature range of -40°C to +85°C with 56 days moisture resistance. The switch delivers 15 A at 28 VDC resistive load with 10,000 electrical cycles at 20°C, making it suitable for industrial control panels, marine equipment, and other demanding sealed-environment applications where durability and environmental protection are critical.