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Series code: HW

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Series details

Control unit embedded into a limit switch box. The HW series provides, not only a visual and electrical remote position feedback, but, using a solenoid valve integrated into the housing, can also control an automated valve.

Available in polyester powder coated aluminum, with different lid choices, and with a wide selection of solenoid valves, from the standards 3/2 way to a 5/3 way with special pneumatic design.

The Soldo control unit, is covering from industrial automation to food and beverage, from chemical to naval industries.

It can also meet the requirements of a simple limit switch box, by removing the control side, providing a large inner volume able to host up to 6 switches and spare pass through terminals.


  • Twin shaft design, ensuring a complete sealed device. The shaft is splitted in two parts, each fitted and sealed into the body and cover for the best weather insulation even during opening operation.
  • Up to three cable entries, either metrics or imperial.
  • Enhanced corrosion resistance thanks to the thick polyester powder coating on aluminum housings.
  • 3/2, 5/2 or 5/3 way solenoid valve for pneumatic control
  • Compact solution embedding the solenoid valve into the limit switch box.
  • Easy wiring through the terminal PCB board
  • NOVA V3™ switch option ensures extreme durability and high power switching capabilities
  • 4-20 mA position transmitter options
  • ASI communication protocol board
  • Integrated Namur mounting kit
  • Captive bolts on the screwed lid.

Product Description

Technical Data:


  • Die-cast aluminum body and cover with polyester powder coating
  • Stainless steel fasteners and shafts


CE, UL  Ordinary location

SIL certificate:

Up to SIL 3 certified by TUV

Protection rating:

IP 66 / 67

Cable entries options:

up to three cable entries M20, M25, 1/2" NPT or 3/4" NPT