PTC heaters for floor standing and central air conditioner are constituted by PTC components, which are connected with heat sink strips by insulation layer, which is replaced by Aluminum tube in JX series. Parallel rows are added to increase windward surface so as to increase power with size unchanged. All products has outstanding performance in electrical strength, heating up and safety. Besides, we also design and produce customized products. Parameters: Item Parameters Rated Voltage ( V) 12~ 380V Rated Frequency ( Hz) 50( 60) Size of radiator ( mm) 200~ 700 Rated power range ( W) 500~ 3500 Power tolerance ( % ) + 5~ -10 Insulation resistance ( M© ) > = 100 Electric Strength ( V/ min) 1500 PTC withstand voltage ( V) 450 Power decay rate ( % )