Thermal Unit, A21.3

Full Load Amps 14.0 to 15.0, Thermal Unit, Model A21.3, For Use With Square D Motor Starters, NEC Article 430 Part C, Selection (1) Motor FLA/SF (2) Motor and Starter in SAME Ambient Temp (3) For 1.15 to 1.25SF Thermal Unit Amp Equal Motor FLA/1.0SF Thermal Unit Amp Equal 90% Motor FLA, IF Motor Ambient Temp +18F of Starter-Thermal Unit Amp Equal 10% Derate of (3), IF Motor Ambient Temp -18F of Starter-Thermal Unit Amp Equal 5% Increase of (3), Do NOT Exceed Starter Rating