Instantaneous electronically controlled water heater


HKD 7,490.00

Recommended retail price

aquaStop protection


Solar energy system

Electronically controlled instantaneous water heaters are perfect for heating up water from solar energy systems — up to 60°C, to the degree. This means that users of solar energy systems are independent from sun, wind and weather.

Efficient energy saving

Compared to hydraulically controlled instantaneous water heater electronically controlled instantaneous water heater need 30 % less energy and water.

Back-lit LCD

Optimum display of settings and information.

Shock/moisture protection to IP 25.

Water jet protection ensures easy installation, even in commercial applications.

CLICKFIX plus® — assembly has never been so quick

It really couldn't be quicker or easier: with the unique CLICKFIX plus® installation technology, our instantaneous water heaters are installed quickly, easily and accurately in three short steps. This not only makes new installations easy, but also simplifies the replacement of older devices.

Childproof lock/scald protection

Pressing both temperature setting buttons simultaneously activates the childproof lock quickly and easily to prevent operation of the device. The childproof lock limits the

maximum temperature to 42°C, offering effective scald protection. The key symbol in the back-lit LCD indicates that the function is activated.

"2-in-1" power switch

All devices bearing the "2-in-1" symbol provide a choice between two different performance levels during installation. Exclusive installers will enjoy a host of benefits as a result of this safe, easy-touse power switch: in the future, it will be possible to cover all market demand with a maximum of two appliance versions. As a result, it will no longer be necessary to support four performance versions, which will save storage and handling costs. The required power mode can be easily selected; the adjustment is made using the sliding switch on the controller.

Technical specifications

Water pipe connection thread ["]: 21,3 / G1/2A
  • Dimensions (H x W x D): 48.3 x 23.6 x 12.2 cm
  • EU energy label A
Learn more
Brand Siemens
Product name / Commercial code DE2124628M
EAN code 4,242,003,779,125
Construction type
Design Closed (Pressure-proof)
Color / Material panel night blue, White
Appliance type instant.electric.water heater
Heating type Bare wire heater
Material heating element Stainless steel
Suitable material water outlet pipes Copper, Plasic pipes acc. DVGW, VPE pipes
Suitable material water inlet pipes Copper, Plastic pipes acc. DVGW, VPE pipes
Installation type Above washbasin, Clickfix-plus installation type
Installed filter
Flow control Mechanical flow limitation
Control type of heat output Electronic
Shock / moisture protection IP25
Safety device Safety pressure limiter, Safety temperature limitation
Temperature limitation as child safety
Mains connection
Electrical connection (Type of connection) 3~/PE
Cable entry into appliance Above, Below, From rear
Recommended cable cross-section (mm2) 6.0
Nominal power (kW) 21/24 kW
Plug type fixed connection
Technical details
Connection, thread, water outlet pipes (inches) 1/2
Connection, thread, water inlet pipes (inches) 1/2
Maximum flow rate (l/min) 10
ON flow rate (l/min) 2
ON flow pressure with flow restrictor 0.09 bar
ON flow pressure without flow restrictor 0.25 bar
Maximum permitted conductivity of water (mS/m) 77
Nominal pressure (water) (bar) 10 bar
Minimum permitted electrical resistance of water (Ohm/cm) 1,300
Water connection flexible, Flush connection
Minimum to maximum inlet temperature (C°) 4-60 °C
Energy-saving position
Descaling method No descaling required
Noise class I
Power on/off indicator LCD display
Total number of power settings (manual/automat.) Stepless
Variable temperature setting from/to (°C) 20 - 60 °C

User manuals

You can access and download user manuals and other documentation about your Siemens home appliance online.

Currently there are no documents available.

Currently there are no documents available.

Currently there are no documents available.

Line drawings



In case you click on the “Visit Retailer Shop” button a tracking of your purchasing process takes place, see data protection clause. By using the button “Visit Retailer Shop” you agree on the tracking.