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The Square D A9.25 thermal unit protects motors, controllers, and branch circuit conductors against excessive heating due to prolonged motor over currents, including locked rotor currents. Class 20 thermal units respond to overload current conditions according to trip curves, tripping in 20 seconds or less. It features a one-piece construction. The motor current passes through a small heater winding within the unit.
Protects motors, controllers, and conductors from overheating with Class 20 thermal units.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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