... .suitable for overload and phase-failure protection Application The thermal relay are suitable for overload protectio of AC motor operated on ... ,2.8-4.4,4-6,5.2-8,7-11,9-13YTH-N20YS-K12 YS-K21YS-K25 YS-K352.1 ... ,2.5,3.6,6,6.6,9.11,15,19,22,29,351.7-2.1,2-3 ... ,2.8-4.4,4-6,5.2-5,7-11,9-13,12-18,16-22,18-26,24-34 ... YS-K9542,5434-50,43-65 YTH-N12 Overload Thermal Relay