- Compact size
- Integrated pre-set thermostat
- Quiet operation
- Heating power adjusts to ambient temperature
- 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.
| Heating element | PTC resistor, temperature limiting |
|---|---|
| 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 m³/h) @ AC 120 V 26 cfm (45 m³/h) @ AC 230 V |
| Connection | 2-pole dual pressure clamp for solid wire AWG 14 max. (2.5 mm²), stranded wire (with wire end ferrule) AWG 16 max. (1.5 mm²) |
| Housing | plastic according to UL 94V-0, black |
| Mounting | clip for 35 mm DIN rail, EN 60715 or screw mount (Ø 5.5 mm), clamping torque 2 Nm max., washers must be used |
| Mounting position | vertical airflow (air outlet up) |
| 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 humidity | max. 90 %RH (non-condensing) |
| Protection class / Protection type | II (double insulated) / IP20 |
| Part No. DIN mount | Part No. screw tab mount | Operating voltage | Heating capacity¹ | Inrush current max. | Recommended pre-fuse T (time-delay) | Switch-off temperature² | Switch-on temperature² | Approvals | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 02821.9-06 | 02821.9-08 | AC 120 V, 50/60 Hz | 250 W | 6.0 A | 10.0 A | 59 °F (15 °C) | 41 °F (5 °C) | UL File No. E234324 | - | EAC |
| 02821.9-09 | 02821.9-11 | AC 120 V, 50/60 Hz | 250 W | 6.0 A | 10.0 A | 77 °F (25 °C) | 59 °F (15 °C) | UL File No. E234324 | - | EAC |
| 02820.9-06 | 02820.9-08 | AC 120 V, 50/60 Hz | 400 W | 9.0 A | 10.0 A | 59 °F (15 °C) | 41 °F (5 °C) | UL File No. E234324 | - | EAC |
| 02820.9-09 | 02820.9-11 | AC 120 V, 50/60 Hz | 400 W | 9.0 A | 10.0 A | 77 °F (25 °C) | 59 °F (15 °C) | UL File No. E234324 | - | EAC |
| 02821.0-06 | 02821.0-08 | AC 230 V, 50/60 Hz | 250 W | 9.0 A | 10.0 A | 59 °F (15 °C) | 41 °F (5 °C) | UL | VDE | EAC |
| 02821.0-09 | 02821.0-11 | AC 230 V, 50/60 Hz | 250 W | 9.0 A | 10.0 A | 77 °F (25 °C) | 59 °F (15 °C) | UL | VDE | EAC |
| 02820.0-06 | 02820.0-08 | AC 230 V, 50/60 Hz | 400 W | 15.0 A | 16.0 A | 59 °F (15 °C) | 41 °F (5 °C) | UL | VDE | EAC |
| 02820.0-09 | 02820.0-11 | AC 230 V, 50/60 Hz | 400 W | 15.0 A | 16.0 A | 77 °F (25 °C) | 59 °F (15 °C) | UL | VDE | EAC |
¹ at 68 °F (20 °C) ambient temperature; ² tolerance of ±5 K
Note: Other Switch-off and Switch-on temperatures on request.
Accessories
Air guide for improved heat distribution
The air guide is an accessory part for use with the fan heater CSF 028. It can easily be clipped onto the protective grill of the fan heater without use of any tools, and diverts the exiting warm air by 45°. This results in an overall improved heat distribution within an enclosure or cabinet. The temperature above the protective grill is reduced by up to 68 °F/20 °C (measured approx. 3.9”/100 mm above protective grill) and may make the use of custom heat ducts obsolete.
| Part No. | Dimensions² | Plastic | 1 Packing unit | Weight (approx.) |
|---|---|---|---|---|
| 252017 | 3.3 x 3.3 x 0.5“ (85 x 85 x 12 mm) | UL 94V-0, black | 1 piece | 1.2 oz. (35 g) |
² Dimensions when mounted on fan heater.
Dimensioned Drawings - DIN rail mount
Screw mount
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