Compact Semiconductor Fan Heater
CS 028 / CSL 028 | 150W to 400W

  • Small, compact design
  • Quiet in operation
  • Dynamic heating up
  • Clip or screw fixing

These fan heaters prevent formation of condensation and provide an evenly distributed interior air temperature in enclosures with electric/electronic components. The heaters are connected using the internal terminal connectors. The small size of the CS / CSL 028 heaters make them ideal for use in enclosures where space is at a premium.

Technical Data

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Heating elementPTC resistor - temperature limiting
Axial fan, ball bearingair flow, free flow
CS 028: 13.8m³/h
CSL 028: 45m³/h (230VAC), 54m³/h (120VAC)
service life 40,000h at +40°C (+104°F)
Connection2-pole clamp max. 2.5mm² (CSL 028 with strain relief),
clamping screw torque 0.8Nm max.
Casingplastic according to UL94 V-0, black
Mountingclip for 35 mm DIN rail, EN 60715 or screw fixing (Ø 5.3mm)
Fitting positionvertical airflow (air outlet up)
Dimensionssee drawings
Operating/Storage temperature-45 to +70°C (-49 to +158°F)
Operating/Storage humiditymax. 90% RH (non-condensing)
Protection type/Protection classIP20 / II (double insulated)
Noteother voltages on request

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Fan Heater CS 028

Art. No.
clip fixing
Art. No.
screw fixing
Operating
voltage
Heating
capacity¹
Inrush
current
max.
Recommended
pre-fuse T
(time-delay)
Weight
(approx.)
        Approvals

02800.0-0002800.0-01230VAC, 50/60Hz150W12.0A10.0A0.3kgVDE       ULEAC
02800.9-0002800.9-01120VAC, 50/60Hz150W6.0A10.0A0.3kg  -UL File No. E234324EAC

Fan Heater CSL 028

Art. No.
clip fixing
Art. No.
screw fixing
Operating
voltage
Heating
capacity¹
Inrush
current
max.
Recommended
pre-fuse T
(time-delay)
Weight
(approx.)

           Approvals

02811.0-0002811.0-01230VAC, 50/60Hz250W9.0A10.0A0.5kgVDE      ULEAC
02810.0-0002810.0-01230VAC, 50/60Hz400W15.0A16.0A0.5kgVDE      ULEAC
02811.9-0002811.9-01120VAC, 50/60Hz250W6.0A10.0A0.5kg   -UL File No. E234324EAC
02810.9-0002810.9-01120VAC, 50/60Hz400W9.0A10.0A0.5kg   -UL File No. E234324EAC

¹ at +20°C (+68°F) ambient temperature

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Accessory Part for Fan Heater CSL 028


Air duct for improved heat distribution


The air duct is an accessory part for use with the fan heater CSL 028. It can easily be clipped onto the protective grille 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 grille is reduced by up to 20 °C (measured 100 mm above protective grille) and may make the use of a heat conduction plate obsolete.

Art. No. Dimensions²Plastic1 Packing unitWeight (approx.)
25201785 x 85 x 12 mmaccording to UL94 V-0, black1 piece35 g

² Dimensions when mounted on fan heater.

Air duct Art. No. 252017
Fan heater with air duct

Technical drawing - Clip fixing

Fan heater CS 028 with clip fixing
Fan heater CSL 028 with clip fixing

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Technical drawing - Screw fixing

Fan heater CS 028 with screw fixing
Fan heater CSL 028 with screw fixing