STEGO enclosure heaters and filter fans heat and cool your control cabinet. Thermostats, hygrostats and sensors complete temperature and humidity control systems in your technical application. STEGO offers matching lighting and accessories such as LED enclosue lights, pressure compensation elements and sockets.

Enclosure heater with fan

CSF 028

This PTC enclosure heater with fan and fixed thermostat provides condensation protection in the enclosure and casing. It is particularly space-saving. The integrated fixed thermostat is available in two temperature presets. The heating is touch-safe for the application thanks to the touch-safe plastic coating of the heater body.

PTC heating element: temperature-limiting, direct response behavior
Touch-safe heat protection, therefore safe to touch
Screw fixing and mounting with clip fixing for DIN rail 35 mm possible
Electrical connection via pressure clamps
Temperature safety cut-out to prevent overheating

Overview technical data

Device type	Fan heater; Integrated control; Touchsafe
Protection class	II
Protection type	IP20
Heating element	PTC resistor (PTC)
Casing	Plastic to UL94 V-0, black
AC/DC	AC
Frequency	50;60 Hz
Operating temperature	-49 °F - 158 °F
Operating humidity	≤90 % rF
Storage humidity	≤90 % rF
Storage temperature	-49 °F - 158 °F
Connection type	Connection terminal
Torque	0.8 Nm max.
Connection	2-pole clamp 2.5 mm²
Installation position	Airflow direction "in" vertical / connection at the bottom
Height	3.5 in
Width	3.3 in
Depth	4.4 in
Weight	17.6 oz
Item number accessories 1	252017
Accessory 1	Air routing for improved heat distribution
Note	Other voltages on request;Tolerance ±5 K;Heating capacity at +20 °C (+68 °F) ambient temperature; switch-on temperature tolerance at +5K, other switch-off and switch-on temperatures on request.

Product variants

Article number	Operating voltage	Inrush current	Heating capacity	Switch-off temperature	Switch-on temperature	Mounting
02820.0-06	230 V	15 A	400 W	59 °F	41 °F	Clip for 35 mm DIN rail
02820.0-08	230 V	15 A	400 W	59 °F	41 °F	Screw fixing
02820.0-09	230 V	15 A	400 W	77 °F	59 °F	Clip for 35 mm DIN rail
02820.0-11	230 V	15 A	400 W	77 °F	59 °F	Screw fixing
02820.9-06	120 V	9 A	400 W	59 °F	41 °F	Clip for 35 mm DIN rail
02820.9-08	120 V	9 A	400 W	59 °F	41 °F	Screw fixing
02820.9-09	120 V	9 A	400 W	77 °F	59 °F	Clip for 35 mm DIN rail
02820.9-11	120 V	9 A	400 W	77 °F	59 °F	Screw fixing
02821.0-06	230 V	9 A	250 W	59 °F	41 °F	Clip for 35 mm DIN rail
02821.0-08	230 V	9 A	250 W	59 °F	41 °F	Screw fixing
02821.0-09	230 V	9 A	250 W	77 °F	59 °F	Clip for 35 mm DIN rail
02821.0-11	230 V	9 A	250 W	77 °F	59 °F	Screw fixing
02821.9-06	120 V	6 A	250 W	59 °F	41 °F	Clip for 35 mm DIN rail
02821.9-08	120 V	6 A	250 W	59 °F	41 °F	Screw fixing
02821.9-09	120 V	6 A	250 W	77 °F	59 °F	Clip for 35 mm DIN rail
02821.9-11	120 V	6 A	250 W	77 °F	59 °F	Screw fixing

Enclosure heater with fan

CSF 028

Overview technical data

Product variants

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