K4 sauna control unit

K4-9-N

The Harvia K4 is a compact, intuitive control unit designed for a seamless sauna experience. Adjust your temperature precisely from 40 °C to 125 °C and program your session with a clear digital display — up to 24 hours in advance, accurate to the minute. Built-in safety sensors and automatic shut-off ensure reliable, worry-free performance every time.

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Item number Harvia: K4-9-N
Type code: K4-9
Electrical number (STK): 8264867
Certificates: CE EAC

One-piece housing with integrated control unit
Temperature adjustable from 40 °C to 125 °C
Temperature and safety sensor for sauna heater
Automatic shut-off on fault or short circuit
6-hour heating limit
Light connection
Single-sensor system
Digital display with 24-hour timer and fault indicator

Technical

Features

Model	K4-9-N
User group	Households
Power output	9 kW
Control type	Controlled by manual switches
Installation location	Wall
Installation orientation	Horizontally
Color	White
Main material	Plastic
Temperature adjustment range ˚C, min.	40 °C
Temperature adjustment range ˚C, max.	125 °C
Ambient temperature min	-10 °C
Ambient temperature max	40 °C
Storage temperature min	-25 °C
Storage temperature max	70 °C
Use environment	Interior - dry area

Measurements

Model	K4-9-N
Height	236 mm
Width	195 mm
Depth	90 mm
Control panel width	195 mm
Control panel depth	238 mm
Control panel height	90 mm

Weights

Model	K4-9-N
Net weight	1.34 kg

Electrical

Model	K4-9-N
IP Class (like: IPX4)	IPX4
Electrical Frequency	50 Hz
Max. Connection power for light	100 W
Electrical group options	400V 3N~

Logistics

Model	K4-9-N
EAN	9120053864495
Electrical number (STK)	8264867
Customs tariff number EU	85371098
Product unit (pcs, meters etc.)	PCS
Sales unit	pcs
Package height	115 mm
Package width	265 mm
Package depth	331 mm
Gross weight	1.95 kg
Cardboard weight	0.47 kg
Plastic weight	0.01 kg

Please check the product manual for updated information before use.