PTC Fan Heater CR 027 Compact fan heater in PTC technology Maintains minimum operating temperatures in enclosures Helps to prevent failure of electronic components caused by condensation and corrosion Heating power adjusts to ambient temperature Integrated adjustable thermostat and control light DIN rail mountable Technical Data data CR Technical CR 027 027 6.3" (160 mm) Determining the required heater size: PH = (A x DT x k) - PV Thermostat range o 0 - 60 C 0 - 60oC 32 - 140oF 32 - 140oF Weight 2 lbs/0.9 kg 2.4 lbs/1.1 kg 2 lbs/0.9 kg 2.4 lbs/1.1 kg 6.5" (165 mm) Axial Fan Max. current 1) (ball bearing) Part No. Voltage (inrush) Power 3 11A 400W (50 Hz) 220-240 VAC 20 cfm (35 m /h) 02700.0-00 26 cfm (45 m3/h) 13A 220-240 VAC 550W (50 Hz) 02701.0-00 14A 100-120 VAC 20 cfm (35 m3/h) 02700.9-00 550W (60 Hz) 26 cfm (45 m3/h) 15A 100-120 VAC 02701.9-00 650W (60 Hz) 1) at 68F (20C) ambient temperature. Also, power will vary when frequency other than listed is applied. Heating element: PTC-semiconductor/resistor, self-regulating with changing ambient temperature (see graph below) Overheat protection: Built-in temperature limiter in case of fan failure Function control light: LED Housing: Plastic, UL94V-0 For spacing, add 2" clearance Dimensions (H x W x D): 6.5 x 3.94 x 5" (165 x 100 x 128mm) to heat sensitive parts. Connection: 2-pole terminal, AWG 14 max. (2.5 mm) Mounting: Clip for 35 mm DIN rail (EN 50022) Protection class: II (double insulated) Protection type: IP 20 Agency approvals: UL PH = Required heating power for your application in Watts (W) PV = Heating power generated by existing components (e.g. a transformer) in Watts (W) A = Exposed enclosure surface area in square meters (m) Applications: Electrical & Electronic enclosures Telecommunications systems Automatic teller machines (ATM's) Access & Parking control systems Display panels Personnel booths Ticket dispensers 700 600 650W heater 500 550W heaters 400 300 -20C -4F 400W heater -10C 14F 0C 32F 10C 50F 20C 68F 30C 86F Ambient Temperature Specifications are subject to change without notice. Suitability of this product for its intended use and any associated risks must be determined by the end customer/buyer in its final application. STEGO, Inc. * 2270 Northwest Parkway * Suite 170 * Marietta, GA 30067 * Tel: (770) 984-0858 * Fax: (770) 984-0615 Toll free: 1-888-783-4611 (US & Canada only) * www.stegousa.com CR027-11-05/US For outdoor applications it is recommended to double the heating power. Heating Power relative to Ambient Temperature 800 Heating Power (W) = Heat transmission coefficient of the enclosure material used: Painted steel: 5.5W/mK Stainless steel: 3.7W/mK Aluminum: 12W/mK Polyester/Plastic: 3.5W/mK 5" (128 mm) k 3.94" (100 mm) 4.8" (124 mm) DT = Temperature differential between the desired minimum interior temperature and the Lowest possible external temperature of the enclosure in Kelvin (K), 1.8F = 1C = 1K