The DPA01, DPA51, and DPA52 3-phase monitoring relays from Carlo Gavazzi address the safety challenges introduced by low-GWP A2L and A3 refrigerants. Designed for ignition-free operation, they provide continuous phase sequence and phase loss monitoring to safeguard compressors against grid faults. Fully compliant with IEC/EN and UL 60335-2-40, the DPA Series supports OEMs building commercial heat pumps, chillers, and rooftop units—delivering regulatory compliance, reliability, and easy integration with minimal system redesign.
FEATURES:
- Spark-free technology to eliminate ignition risk in flammable refrigerant environments.
- Continuous monitoring of phase sequence and phase loss for compressor protection.
- Designed specifically for HVAC systems using low-GWP A2L and A3 refrigerants.
- Complies with IEC/EN 60335-2-40 and UL 60335-2-40 safety standards.
- Upgrade-ready design enables easy retrofits with minimal redesign.
- Wide voltage range support for global HVAC applications.
- Ideal for heat pumps, chillers, and rooftop units focused on safety and sustainability.
Carlo Gavazzi DPA Series 3-Phase Monitoring Relays
Carlo Gavazzi Technical Datasheets
