PTC heaters for commercial air conditioners 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. Thermostat and fuse are fixed to PTC heater.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) 500~5200 Power tolerance (%) +5~-10 Insulation resistance (M¦¸) >=100 Electric Strength (V/min) 1500 PTC withstand voltage (V) 450 Power decay rate (%) <=10%/1000h Max Surface Temperature (Celsius) 270 Response time of thermostat when overheated <=6 Response time of fuse when overheated <=15 Normal Type: Item Power (W) Size (mm) Structure MZFR-J0527 500 266x44x15 Single row/glue MZFR-J10x42 1000 420x44x15 Single row/Al tube MZFR-J1538 1500 384x44x15 Double rows/glue MZFR-J16x55 1600 550x44x15 Single row/Al tube MZFR-J20x56 2000 560x62x15 Double rows/Al tube MZFR-J30x35 3000 354x90x15 Three rows/Al tube MZFR-J32x56 3200 560x62x15 Double rows/Al tube