Square D A21.3 Thermal Unit

Product Description

The Square D A21.3 Thermal Unit is designed to protect motors and controllers from overheating due to extended overcurrents. It handles locked rotor currents and provides essential protection against short circuits. These units are compliant with Class 20 standards and react to overload conditions effectively. The unit features a one-piece construction for reliable operation.

• Melting alloy thermal units
• Tripping in 20 seconds or less under overload conditions
• Manual reset after cooling

Product Highlights

These thermal units offer significant overload protection suitable for a wide range of motors.

Product Information

Standard Information

• Brand: Square D
• Manufacturer: Schneider Electric

Technical Specifications

• Catalog Number: A21.3
• Type: Thermal - Melting Alloy
• Trip Type: Class 20
• Reset Type: Manual
• Country of Origin: Mexico
• Warranty Length: 18 months
• GTIN: 00785901585510