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.	103 °F
Temperature adjustment range ˚C, max.	256 °F
Ambient temperature min	13 °F
Ambient temperature max	103 °F
Storage temperature min	-14 °F
Storage temperature max	157 °F
Use environment	Interior - dry area

Measurements

Model	K4-9-N
Height	9.29 in
Width	7.68 in
Depth	3.54 in
Control panel width	7.68 in
Control panel depth	9.37 in
Control panel height	3.54 in

Weights

Model	K4-9-N
Net weight	3 lbs

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	4.53 in
Package width	10.43 in
Package depth	13.03 in
Gross weight	4.3 lbs
Cardboard weight	1 lbs
Plastic weight	0 lbs

Please check the product manual for updated information before use.