DPA 3-Phase HVAC Monitoring Relays

Carlo Gavazzi DPA 3-Phase HVAC Monitoring Relays are specially designed for HVAC systems using low-GWP refrigerants. These relays help protect compressors, enable sustainability, and ensure compliance as manufacturers phase out and replace high-GWP HFCs with next-generation refrigerants such as R-32, R-1234yf, and R-290. While these alternatives support climate goals, they also have a higher ignition risk and require strict compliance with IEC/EN 60335-2-40 and UL 60335-2-40 safety standards. Carlo Gavazzi DPA 3-Phase HVAC Monitoring Relays provide a reliable and certified solution, operating completely spark-free while meeting the ignition-free requirements for A2L and A3 refrigerants. The DPA HVAC relays provide continuous phase-sequence and phase-loss monitoring to ensure compressors remain protected from main-grid failures. Ideal applications include commercial and industrial heat pumps, chillers, and rooftop units.

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Carlo Gavazzi Industrial Relays 3-Phase Delta Monitoring Relay, Sequence and Phase Loss, 1 SPDT Relay Output, IP20, DIN-rail mounting, Measuring Range 177 to 550Vac, 22.5x83.5x99.5mm housing. Complies with IEC 60335-2-40 for use with A3 flammable refrigerants.
Datasheet
4In Stock
Min.: 1
Mult.: 1
DIN Rail Industrial Relay Screw SPDT 208 VAC to 480 VAC IP20 DPA01 HVAC 80 mm 22.5 mm 99.5 mm
Carlo Gavazzi Industrial Relays 3-Phase Delta Monitoring Relay, Sequence and Phase Loss, 1 SPDT Relay Output, IP20, DIN-rail mounting, Measuring Range 177 to 550Vac, 17.5x81x67.2mm housing. Complies with IEC 60335-2-40 for use with A3 flammable refrigerants.
Datasheet
3In Stock
Min.: 1
Mult.: 1
DIN Rail Industrial Relay Screw SPDT 208 VAC to 480 VAC IP20 DPA01 HVAC 81 mm 17.5 mm 67.2 mm
Carlo Gavazzi Industrial Relays 3-Phase Delta Monitoring Relay, Sequence and Phase Loss, 1 SPDT Relay Output, IP20, DIN-rail mounting, Measuring Range 323 to 690Vac, 22.5x83.5x99.5mm housing. Complies with IEC 60335-2-40 for use with A3 flammable refrigerants.
Datasheet
Non-Stocked Lead-Time 7 Weeks
Min.: 1
Mult.: 1
DIN Rail Industrial Relay Screw SPDT 380 VAC to 600 VAC IP20 DPA01 HVAC 80 mm 22.5 mm 99.5 mm
Carlo Gavazzi Industrial Relays 3-Phase Delta Monitoring Relay, Sequence and Phase Loss, 1 SPDT Relay Output, IP20, DIN-rail mounting, Measuring Range 510 to 760Vac, 22.5x83.5x99.5mm housing. Complies with IEC 60335-2-40 for use with A3 flammable refrigerants.
Datasheet
Non-Stocked Lead-Time 7 Weeks
Min.: 1
Mult.: 1
DIN Rail Industrial Relay Screw SPDT 600 VAC to 690 VAC IP20 DPA01 HVAC 80 mm 22.5 mm 99.5 mm
Carlo Gavazzi Industrial Relays 3-Phase MR 208VLL to 480 VLL, Phase loss and Phase sequence. Complies with IEC 60335-2-40 for use with A3 flammable refrigerants.
Datasheet
Non-Stocked Lead-Time 7 Weeks
Min.: 1
Mult.: 1
DIN Rail Industrial Relay Screw SPDT 208 VAC to 480 VAC DPA01 HVAC 81 mm 17.5 mm 67.2 mm