Square D A6.20 Thermal Unit

Product Description

Square D A6.20 is a thermal unit designed to protect motors, controllers, and branch-circuit conductors from excessive heating due to prolonged motor over-currents. This unit mitigates conditions such as locked rotor currents and acts as a safeguard against higher currents resulting from short circuits or grounds through branch circuit fuses or circuit breakers.

• Repeated tripping does not affect original calibration.
• One-piece thermal unit construction.
• Standard trip rate of class 20 is designed for overload protection in various applications.

Product Highlights

The A6.20 responds quickly to overloads, tripping in twenty seconds or less. Under overload conditions, a small heater winding causes a special solder to melt, enabling a ratchet mechanism to open the control circuit contacts, ensuring effective motor protection.

Product Information

Standard Information

• Brand: Square D
• Manufacturer: Schneider Electric