The Square D A1.39 Thermal Unit is a specialized component used in motor protection applications. This product belongs to the Square D brand, a well-respected name in electrical distribution and industrial control equipment. The A1.39 model is designed to protect motors from overload conditions, ensuring reliable operation in various industrial environments. It operates within a current range of 1.1 to 1.37 amperes and is classified under Class 20, which pertains to motor protection settings that respond to overloads for a specific duration. Historically, the Square D brand has been a leader in providing robust electrical solutions for over a century. Their products are widely used across multiple industries such as manufacturing, construction, and utilities. Unique features of the A1.39 thermal unit include: - Precise thermal overload protection designed to extend motor life. - Adjustable settings to fit different motor specifications and requirements. - Compatibility with a range of Square D motor starters, enhancing flexibility in installation. The A1.39 thermal unit is essential for ensuring the longevity and continual operation of electric motors, minimizing the risk of damage due to overheating and electrical faults.

Current rating: 1.1 - 1.37 A Class: 20