Transformer Relay Coil Volts 24 Transformer Primary (V) 120 V Transformer Secondary (V) 24 V Switch Type DPDT 3/4 hp HP - 13.8 A Full Load Amps @ 120VAC 82.8 A - 6.9 A 41.4 A - 6.9 A Full Load Amps @ 240VAC - - - Full Load Amps @ 277V - - - - - - - - - - - - 1 in 4 in 4 in 4 x 4 in Junction Box Mounting Low-voltage Control of Line-voltage Fans Pump Motors Forced Air or Hydronic Heating/Cooling Systems UL Includes Transformer and Relay