The Elta SSQUHT50/350 – 4‑3 is a high temperature centrifugal box fan featuring a 350mm size and a 4‑pole, 3‑phase AC motor. It is part of a series available in box sizes of 500mm, 670mm, 820mm, and 1020mm. This fan is designed to handle duct operating temperatures up to +120°C. The construction includes painted aluminium corners for enhanced durability and interchangeable double-skinned panels for easy maintenance and thermal insulation. This model provides reliable performance in high-temperature duct environments.