Toll free: 1-888-783-4611 (US & Canada only) www.stegousa.com TOUCH-SAFE PTC FAN HEATER CSF 028 250 W, 400 W > Compact size > Heating power adjusts to ambient > Integrated pre-set thermostat temperature > Quiet operation > DIN rail or screw tab mount available The CSF 028 fan heater prevents formation of condensation and provides evenly distributed interior air temperature in enclosures. The touch-safe plastic housing and the small size makes it ideal for use in enclosures with a high packing density. The heater is equipped with a fixed set point thermostat and is easily wired via external pressure clamps.Two different mounting options are available - DIN rail or screw tabs. The robust screw tab mounting is particularly suitable for applications with high vibration. CSF 028 with DIN clip TECHNICAL DATA Heating element PTC resistor - temperature limiting Surface temperature 250 W: max. 122 F (50 C), 400 W: max. 149 F (65 C) each except upper protective grille at 68 F (20 C) ambient temperature Overheat protection built-in temperature limiter Axial fan, ball bearing service life 40,000 h at 104 F (+40 C) Axial fan, free blowing 32 cfm (54 m/h) AC 120 V 26 cfm (45 m/h) AC 230 V Connection 2-pole dual pressure clamp for solid wire AWG 14 max. (2.5mm), stranded wire (with wire end ferrule) AWG 16 max. (1.5 mm) CSF 028 with screw mount tabs Housing plastic according to UL 94V-0, black Mounting clip for 35 mm DIN rail, EN 60715 or screw mount ( 5.5 mm), clamping torque 2 Nm max., washers must be used Mounting position vertical airflow (air outlet up), horizontal airflow Dimensions models with DIN clip: 4.13 x 3.35 x 4.65 (105 x 85 x 118 mm), models w/ screw tabs: 4.13 x 4.53 x 4.25 (105 x 115 x 108 mm) Weight 17.6 oz. (500 g) Operating / Storage temperature -40 to +158 F (-40 to +70 C) / -49 to +158 F (-45 to +70 C) Operating / Storage max. 90 %RH (non-condensing) Protection class / Protection type II (double insulated) / IP20 Approvals UL File No. E150057, VDE Part No. - Part No. - Operating voltage Heating Inrush current Pre-fuse T Switch-off temperature Switch-on temperature DIN mount screw tab mount capacity max. (time-delay) 02821.9-06 02821.9-08 AC 120 V, 50/60 Hz 250 W 6 A 10 A 59 F (15 C) 41 F (5 C) 02821.9-09 02821.9-11 AC 120 V, 50/60 Hz 250 W 6 A 10 A 77 F (25 C) 59 F (15 C) 02820.9-06 02820.9-08 AC 120 V, 50/60 Hz 400 W 9 A 10 A 59 F (15 C) 41 F (5 C) 02820.9-09 02820.9-11 AC 120 V, 50/60 Hz 400 W 9 A 10 A 77 F (25 C) 59 F (15 C) 02821.0-06 02821.0-08 AC 230 V, 50/60 Hz 250 W 9 A 10 A 59 F (15 C) 41 F (5 C) 02821.0-09 02821.0-11 AC 230 V, 50/60 Hz 250 W 9 A 10 A 77 F (25 C) 59 F (15 C) 02820.0-06 02820.0-08 AC 230 V, 50/60 Hz 400 W 15 A 16 A 59 F (15 C) 41 F (5 C) 02820.0-09 02820.0-11 AC 230 V, 50/60 Hz 400 W 15 A 16 A 77 F (25 C) 59 F (15 C) at 68 F (20 C) ambient temperature tolerance of 5 K Note: Other Switch-off and Switch-on temperatures on request 08.08.2014 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. www.stegousa.comToll free: 1-888-783-4611 (US & Canada only) www.stegousa.com TECHNICAL DRAWINGS DIN RAIL MOUNT 3.35 (85mm) 4.45 (113mm) View: back side 4.65 (118mm) SCREW TAB MOUNT View: back side Wiring example Fan heater CSF 028 Ambient Temperature Heating Power (W) 3.54 (90mm) 4.13 (105mm) 08.08.2014 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. www.stegousa.com