UPM3 AUTO L is for all applications in which an internally controlled pump is needed. It is designed to be used in appliances or cabinets with increased ambient temperatures and limited space options; either in standalone applications or in kit systems without PWM controller.

Characteristic Features

  • Glandless High Efficiency circulator for integration in HVAC systems; EEI ≤ 0.20 EN16297/3
  • Smallest design ever for a circulator; smaller than the well-known UPS circulator
  • Internally controlled circulator
  • Available with many standard and customized housings
  • Active or passive inrush current limitation
  • Ambient temperatures of up to 70 °C
  • Substitutes ALPHA2L pumps



  • Lowest space requirements ever for a circulator integrated in an appliance
  • Optimised design fit for easy accessibility
  • Easy access to the user interface from front
  • Easy access to the connectors from front
  • Easy access to the pump head screws from the front
  • Easy access to the de-blocking screw from front
  • Intelligent configuration Different signals and profiles available (PWM A, PWM C, KMBus)
  • Standard return signal showing power consumption, alarm and operation status
  • Other customized input profiles and different return profiles are possible e.g. flow estimation
  • Ready for Conversion according Ecodesign requirement for August, 2015 exceeding benchmark level; EEI ≤ 0.20 EN16297/3
  • Unmatched reliability
  • Field and lab tested product quality Ceramic bearing shaft - The UPM3 comes equipped with ceramic bearing shafts for a long and trouble-free lifetime.
  • The ceramic material is extremely durable and will not wear.
  • Double de-blocking system - Electronic de-blocking that maintains the maximum starting torque up to 25 Ncm and manual de-blocking accessible from the front without demounting the control box. High temperature resilience - The resilience to heat will enhance the possibilities of system integration enormously.
  • Ambient temperatures of up to 70 °C. 

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Grundfos UPM3 Pump A Rated

  • £106.10 excl VAT
  • £127.32 incl VAT