SQUARE D Thermal Unit A2.57, 20 Trip Class

The SQUARE D Thermal Unit A2.57 is an overload protection device used in motor starters and contactors. It protects motors from overheating by tripping the circuit when current exceeds a preset level. Common in industrial automation, HVAC, and pump systems, it ensures reliable motor operation and prevents damage from sustained overloads.

The SQUARE D Thermal Unit A2.57 has a trip class of 20 and a manufacturer part number of A2.57. It is designed for use with SQUARE D motor starters and contactors. The trip class indicates the maximum time in seconds to trip under overload conditions, ensuring motor protection in industrial applications.

You can source the SQUARE D Thermal Unit A2.57 from 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead times; we provide reliable sourcing for this SQUARE D component.

To select the correct SQUARE D thermal unit, match the unit's trip class and current rating to your motor's full-load amps and starting characteristics. The A2.57 is a 20 trip class unit, suitable for standard motor protection. Always consult the motor nameplate and SQUARE D selection tables to ensure proper overload protection.