Lainate, Italy, December 2025 – Carlo Gavazzi Automation, the international electronics group specializing in the design, manufacturing, and marketing of electronic control equipment, today announced the launch of its new DPA01, DPA51, and DPA52 three-phase voltage monitoring relays. These products are specifically engineered for Heating, Ventilation, and Air Conditioning (HVAC) systems that operate with low Global Warming Potential (GWP) flammable refrigerants.The HVAC industry is undergoing a significant transformation as manufacturers transition away from high-GWP hydrofluorocarbons (HFCs) towards next-generation refrigerants like R-32, R-1234yf, and R-290. While these alternatives are crucial for meeting climate goals, their higher flammability introduces new safety challenges, requiring strict adherence to IEC/EN 60335-2-40 and UL 60335-2-40 safety standards.Carlo Gavazzi's new DPA relay series provides a certified and reliable solution to these challenges. Engineered with spark-free technology, they meet the stringent ignition-free requirements for use with A2L and A3 class refrigerants. The relays offer continuous phase sequence and phase loss monitoring, ensuring critical compressor protection against common mains power failures."The shift to low-GWP refrigerants is a vital step for sustainability, but it brings distinct technical hurdles," said Francesco Vedana, International Product Manager at Carlo Gavazzi. "Our new DPA relays offer OEMs a ready-to-use, fully compliant solution that combines safety, reliability, and ease of integration. This helps them bring regulation-ready HVAC systems to market more efficiently."This new product range is designed to support manufacturers of commercial heat pumps, chillers, and rooftop units, enabling them to meet evolving regulatory demands and growing customer expectations for safer, more efficient, and sustainable climate control solutions.Key Technical Features:Spark-Free Technology: Eliminates ignition risks in flammable environments.Comprehensive Phase Monitoring: Ensures reliable compressor protection through continuous phase sequence and phase loss detection.Upgrade-Ready Design: Facilitates easy modernization of existing systems with minimal redesign required.About Carlo Gavazzi Automation:Carlo Gavazzi is an international electronics group engaged in the design, manufacturing, and marketing of electronic control components for the global building and industrial automation markets. The company provides technologically advanced, high-quality, and cost-effective solutions through its 23 National Sales Companies across Europe, the Americas, and Asia-Pacific, supported by manufacturing facilities in Italy, Mexico, Lithuania, Malta, and China.
