Comfort instantaneous water heaters
HDB-E 21 Si – Technical Data

  • Technical data

    Rated voltage

    400 V

    Rated voltage 1

    380 V

    Rated voltage 2

    400 V

    Rated output

    21 kW

    Rated output 1

    19 kW

    Rated output 2

    21 kW

    Rated current

    31 A

    Rated current 1

    29.5 A

    Rated current 2

    31 A

    Fuse protection

    32 A

    Fuse protection 1

    32 A

    Fuse protection 2

    32 A

    Frequency

    50/60 Hz

    Frequency 1

    50/60 Hz

    Frequency 2

    50/60 Hz

    Phases

    3/PE

    Resistivity ρ15 ≥ (at ϑcold ≤25 °C)

    1100 Ω cm

    Specific conductivity σ15 ≤ (at ϑcold ≤ 25 °C)

    910 μS/cm

    ON

    >2.3 l/min

    Temperature setting

    55 °C

    Colour

    white

    Height

    470 mm

    Width

    225 mm

    Depth

    117 mm

    Weight

    3.60 kg

    Technical data and product variants

    For further details and product variants please refer to data sheet.

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