Lewden Isolator Switch Range — Built for Every Environment Whether you’re working indoors, outdoors, or in demanding industrial conditions, Lewden has the right isolator for the job. Our complete range covers: 🔹 Thermoplastic Isolators (IP65) – lightweight, robust and chemical-resistant for general installations. 🔹 Metal-Clad Isolators (IP67) – die-cast aluminium durability for heavy-duty applications. 🔹 Fire-Rated F400 Isolators – engineered to withstand 400 °C for 120 minutes, maintaining c