Square D A1.39 Thermal Unit Overview

The Square D A1.39 Thermal Unit is a component specifically designed for use in motor protection applications. It is classified under Class 20, which means it is suitable for protecting motors from overload conditions. The unit operates at a voltage of 600V AC and supports a current range of 1.1 to 1.37A, making it suitable for small to medium-sized motors in various industrial settings. Historically, Square D has been a trusted name in electrical distribution and control equipment since its founding in 1902. The A1.39 unit continues this legacy by providing reliable protection for industrial motor applications, helping to prevent damage caused by overheating due to overloads. Key features of the Square D A1.39 include: - Durable construction for long-lasting performance - Thermal protection allowing for safe operation of electric motors - Easy installation in compatible Square D motor starters, facilitating maintenance and upgrades in electrical systems. This thermal unit is widely utilized across multiple industries including manufacturing, mining, and utilities, where motor reliability is critical to operational efficiency. The proprietary technology used in Square D products ensures a high level of accuracy in temperature sensing and load monitoring, making it an essential component for those seeking to enhance the reliability of their motor operations.