Square D A2.57 Thermal Unit

Product Description

Square D A2.57 is a thermal unit designed to safeguard motors, controllers, and branch circuit conductors from overheating caused by extended motor overcurrents. This unit is capable of handling locked rotor currents. Additionally, it provides protection against high currents resulting from short circuits or grounds via branch circuit fuses or breakers.

• Class 20 thermal units react to overload conditions with a trip time of twenty seconds or less.
• Constructed in a one-piece design for durability.
• Operates through a small heater winding allowing a ratchet wheel mechanism to open the motor contacts during overload conditions.

Product Highlights

The A2.57 thermal unit is essential for those managing motor controls, ensuring reliable protection against overheating and potential electrical failures.

Product Information

Standard Information

• Catalog Number: A2.57
• Brand: Square D
• Manufacturer: Schneider Electric
• Warranty Description: Contractual Warranty: 18 months
• Country of Origin: United States

Technical Specifications

• GTIN: 00785901585282
• UPC: 78590158528
• Type: Thermal - Melting Alloy Thermal Unit
• Trip Type: Standard Trip - Class 20
• Reset Type: Manual
• Applications: For use in melting alloy thermal overload relays