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Frequently Asked Questions
What is the SQUARE D Thermal Unit A14.1 used for?
The SQUARE D Thermal Unit A14.1 is an overload protection device used in motor starters and contactors. It protects motors from damage due to prolonged overcurrent by tripping the circuit when excessive heat is detected. Common applications include industrial machinery, pumps, conveyors, and HVAC systems.
What are the specifications of the SQUARE D Thermal Unit A14.1?
The SQUARE D Thermal Unit A14.1 has a trip class of 20 and a manufacturer part number of A14.1. It is designed for use with SQUARE D motor starters and contactors. The trip class indicates the maximum time in seconds the unit will allow before tripping under overload conditions.
Where to buy SQUARE D Thermal Unit A14.1 worldwide?
You can source the SQUARE D Thermal Unit A14.1 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine SQUARE D components for industrial applications.
How to select the correct SQUARE D thermal unit for a motor?
To select the correct SQUARE D thermal unit, match the motor full-load current (FLC) to the unit's ampere rating range. The trip class (e.g., 20) determines the overload response time. Always consult the motor nameplate and SQUARE D selection tables. For the A14.1, verify compatibility with your starter model and application.
Used in
Common applications for SQUARESQUARE Products
3G Electric supplies SQUARE electrical. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















