• Dry-run protection

Dry-run protection

Dry-run protection
Order no.
HM 3 (628799000)
  • Automatic control: switch on the pump for water discharge and switch off upon reaching the maximum pressure
  • Dry-run protection: automatic deactivation of the motor when nothing is left to pump (leaky suction pipe, the water supply dries out)
  • LED display to check the operating condition
  • Membrane and spring to eliminate the impact of pressure surges
  • Safety valve to prevent water leaking if the diaphragm is damaged
  • Quick and easy assembly
  • Ideal for converting a garden pump into an automatic domestic water system
  • Also suitable for deep well pumps and submersible pressure pumps
  • Switch-on pressure approx. 1.5 bar
  • Voltage: 115 V/ 230 V
  • Frequency: 50 / 60 Hz
  • Protection type: IP 65
  • Maximum amperage: 16(8) A-1.5 kW
  • Maximum operating pressure 10 bar
  • Maximum operating temperature 0° to 60° C
  • Connection:
  • Discharge port, 1" male thread
  • Device connection, 1" male thread
  • Brass adapter 1" female thread x 1" male thread
  • Brass adapter 1" female thread x 1" male thread

Dry-run protection stop switch 10 m (0903028521)
  • Dry-run protection for domestic waterworks, automatic domestic water systems, garden pumps, submersible pumps and submersible pressure pumps
  • Float switch with 10 metre cable length
  • When drawing from cisterns, ponds or streams, the float switch switches the pumps on and off automatically depending on the water level
  • Plug/socket combination