Square D A1.39 (JB) Thermal Unit

The Square D A1.39 (JB) Thermal Unit is designed for use in circuit protection systems, particularly in electrical motor applications. Developed by Square D, a leader in electrical distribution and control products, this thermal unit is known for its reliability and efficiency in providing overload protection. This unit falls within the Class 20 category, which is specifically designed to offer thermal overload protection. It effectively protects motor windings from overheating due to prolonged overload conditions, ensuring the longevity and performance of electric motors. The A1.39 model operates with a current rating range of 1.1 to 1.37 Amperes, allowing for precise protection tailored to specific motor applications. It is particularly suitable for industrial environments where motors are frequently subjected to varying electrical loads. Key features of the Square D A1.39 include: - Thermal protection mechanism that responds to temperature changes, - Compatibility with various Square D motor starters, - Simple installation and maintenance processes, - Designed to meet or exceed industry standards for safety and performance. With its robust design and superior protection capabilities, the A1.39 thermal unit is a trusted choice among engineers and electricians for ensuring the smooth operation of motor-driven equipment in a variety of sectors, including manufacturing, HVAC, and automation industries.