Carlo Gavazzi: Dynamic Motor Starters for 1-Phase Scroll Compressors and Submersible Pumps

March 16, 2020

CARLO GAVAZZI has launched the HDMS Series, a single-phase motor soft-starter. It is an ideal solution for systems used in areas with weak power grids. Its unique design and control algorithm eliminate the need for a traditional start capacitor, effectively increasing reliability. This same innovative control strategy allows the HDMS to easily start Capacitor Start / Capacitor Run (CSCR) motors, and in the case of Permanent Split Capacitor (PSC) motors, virtually eliminate the starting current.

This product offers as much as 70% current reduction when compared to Direct On-Line (DOL) starters, which makes the HDMS the perfect choice for applications such as heat pumps, submersible pumps, or other scroll compressor loads connected to generators or electrical inverters. Innovative features include Near Field Communication (NFC), Modbus communication, and ease of use as the HDMS does not require any user settings or adjustments.

Features of the HDMS include:

  •  –   Single-phase 110 to 230 VAC, 50/60 Hz operating voltage range
  •  –   Self-learning algorithm continuously adapts to load conditions for motor start optimization
  •  –   Broad operational current range: 12, 25, 32, 37 Arms @ 60°C
  •  –   No start capacitor required
  •  –   Tool-free design for quick, error-free installation
  •  –   Data downloads via NFC communication with 143 alarm event storage capacity to expedite troubleshooting
  •  –   Real-time data analysis through Modbus communication
  •  –   Specialized algorithm for scroll compressors and submersible pumps
  •  –   SCR protected relays for increased lifetime
  •  –   2 relay outputs (configurable logic) for Alarm, Top of Ramp
  •  –   Integrated Class 10 motor overload protection
  •  –   Conformal coated PCBs for additional protection against humidity
  •  –   Agency approvals: cULus Listing, CE certification

The HDMS Series Motor Starters are the best choice for increasing reliability, reducing costs on utility contracts and improving motor operation.

Related Articles

Editor’s Pick: Featured Article

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s u-control 2000: The Automation Controller

Weidmüller’s scalable engineering software, u-control 2000, adapts individually to your requirements. And, the u-control is powerful, compact and fully compatible with Weidmüller’s I/O system u-remote. This article looks at what makes u-control the heart of your automation.

Programmable logic controllers (PLCs) are one of the main components of any automated system. A typical control system has inputs, outputs, controllers (i.e., PLCs), and some type of human interaction with the system, a human machine interface (HMI), for example.

Read More

Latest Articles

  • Labeling Cables and Wires

    February 3, 2026 Choosing the right wire marker or cable label Cable and wire labeling is critical in the identification, assembly, and repair of electrical control panels, wire harnesses, and data/telecommunications systems. It is an upfront cost that saves time and labor expenses when changes or repairs need to occur to the systems you work Read More…

  • ITC 101: Understanding NEMA Ratings for Electrical Enclosures

    February 3, 2026 Understanding NEMA Ratings for Electrical Enclosures NEMA Ratings are an essential classification system used across North America to define the environmental and mechanical protection provided by electrical enclosures. Developed by the National Electrical Manufacturers Association (NEMA), these ratings help engineers, installers, and specifiers identify the appropriate enclosure type for industrial, commercial, and outdoor Read More…