21kw Stiebel Eltron PHB three-phase water heater

PHB is an economical DHW solution with proven Stiebel Eltron quality. The hot water temperature is hydraulically controlled through the flow rate. Four performance stages are available. The required temperature is achieved by adding cold water to the point of use. PHB is suitable for all types of water - soft or hard - thanks to the technology of "bare wire" type resistors.

Product details

Instant instantaneous heater, hydraulically controlled, for providing a sink, kitchen sink, shower or bathtub.

Heat exchanger made of glass fiber reinforced polyamide, internally indirectly helical resistors immersed directly in water.

Differential pressure switch.

Safe shutdown via pressure limiter.

Output switch with 2 automatic and 2 manual output stages for 1/3, 1/2, 2/3 and 1/1 of maximum output power.

Possibility of connection for central or local use.

Suitable for connection to VPE plastic pipes with DVGW test signal.

Easy installation.

Made in Germany. CE mark, VDE / GS symbol, EMI / EMC symbol.

Specifications

Model: PHB 21

Energy class: A

Output power [kW]: 21

Rated volume [A]: 31

Security [A]: 32

Supply voltage / phases: 3 / PE

Supply voltage [V]: 400

Frequency [Hz]: 50

Maximum temperature Input [° C]: 25

Hot water supply [l / min]: 11.1

Height [mm]: 485

Width [mm]: 226

Depth [mm]: 93

Degree of protection: IP25