Spelsberg General Purpose Enclosures Universal enclosure 613104 - Spelsberg 13750201, The Spelsberg 13750201 universal enclosure is made of durable plastic and comes in a grey finish. This robust enclosure is ideal for protecting electrical components from external factors. It is commonly used in industrial settings for safeguarding sensitive equipment. Spelsberg 13750201 Universal Enclosure IP66 polycarbonate grey box