Intermatic TN311 15 Amp Heavy Duty Grounded Timer - with Extra Replacement Tripper (2 Red & 2 Green) 15 amps resistive - 1750 watts For air conditioners and other heavy electrical loads 3-prong grounded plug and receptacle - Plugs directly into the wall 3 on/ 3 off settings per day - Manual override switch Includes Extra 2 on and 2 off trippers (Total 5 on and 5 off trippers)