Inverter – External Sensors

VASCO Variable Speed Inverters
VASCO Variable Speed Inverters

VASCO inverters are a range of highly versatile variable frequency drives, designed to control and protect commercial pumping systems by varying the pump speed. Air-cooled it requires adequate ventilation.

Can be connected to any manual pump on the market, and will manage the operation of the pump to maintain a constant desired parameter (such as pressure, flow, temperature or other). The pumping system runs only at the speed necessary to meet user’s requirements, ensuring energy savings, eliminating water-hammer and extending the life of the system.

The body is constructed entirely of aluminium, with compact size, light weight and durability.

IP55 ingress protection makes it possible to install in humid and dusty environments; the LCD backlit display ensures easy operation and a buzzer provides an immediate indication of alarm.

Also provides motor protection and monitoring, such as:

  • Protection against overload and dry running
  • Integrated soft start and soft stop functions, extending the life of the system and reducing peak absorption
  • Not suitable for use with automatic pumps


Product CodeInputOutputOutput CurrentTypical Motor Power (P2)Size (mm)Contact
INV209~1 x 230vac~1 x vin
~3 x vin
~1 x 9A
~3 7A
~1 x 1.1kw
~3 1.5kw
181 x 181 x 228
INV214~1 x 230vac~1 x vin
~3 x vin
~1 x 9A
~3 11A
~1 x 1.1kw
~3 3kw
181 x 181 x 228
INV406~3 x 380-460vac~3 x vin6A2.2kw181 x 181 x 228
INV409~3 x 380-460vac~3 x vin9A4kw181 x 181 x 228
INV414~3 x 380-460vac~3 x vin14A5.5kw260 x 260 x 180
INV418~3 x 380-460vac~3 x vin18A7.5kw260 x 260 x 180
INV425~3 x 380-460vac~3 x vin25A11kw260 x 260 x 180
INV430~3 x 380-460vac~3 x vin30A15kw260 x 260 x 180


  • Single and 3 phase models
  • Can connect up to 8 together for large pump groups
  • Can control a secondary fixed speed pump
  • External sensors
  • 2 x 4-20mA inputs, 2 x 4-20mA or 0-10v (selectable)
  • Ingress protection to IP55