Cable PWM UPM3 De Dietrich 7639271

The PWM cable UPM3 is a specialized wiring harness for connecting a pump to a boiler or control system using pulse-width modulation. This cable enables efficient speed control of the pump, optimizing energy use and system performance. When replacing or installing a UPM3 pump, using the correct PWM cable ensures proper communication and functionality. It is a key component for modern heating systems with variable speed pumps.