Square D A5.78 Thermal Unit Specifications

The Square D A5.78 Thermal Unit is designed to provide overload protection for motors, ensuring their longevity and efficient operation. This product is part of a broader range of thermal overload relays developed by Square D, a brand that has been a pioneer in electrical distribution and control solutions since its founding in 1902. The A5.78 model specifically accommodates motor currents ranging from 5.15 to 5.78A, making it suitable for various industrial applications. It operates within a Class 20 time delay range, providing a thermal response that allows for temporary overload conditions without tripping. Square D products are widely used across many industries, including manufacturing, construction, and automation. The thermal unit's unique feature is its manual reset option, which enables operators to easily reset the device after a trip, minimizing downtime in production environments. In addition to its protective functions, the A5.78 design ensures compatibility with various Square D contactors and starters, making it a versatile choice for electrical control systems. Its robustness and reliability have made it a trusted component in electrical infrastructures globally.