Do you have a question about the LOVATO ELECTRIC PMA50 and is the answer not in the manual?
Explains the PMA50 relay's functions, including motor protection types and applications for pumps.
Lists key features such as under-load control, TRMS current control, phase sequence control, and output relay.
Details how to select and change the operating mode of the device.
Describes the functionality of the external reset input when set to OFF.
Explains the external reset input functionality when set to ON.
Details how to connect the device based on selected configurations (1Ph/3Ph) and CTs.
Explains the relay's behavior and tripping indicators for incorrect phase sequence.
Describes the tripping mechanism and indicators for phase loss in three-phase systems.
Guides on adjusting thresholds and delays, and explains LED indicators during normal and fault conditions.
Explains the automatic reset function for under-load tripping and how to enable/disable it.
Shows the wiring for motor protection with start/stop buttons and external reset OFF.
Illustrates the wiring for motor protection with ON/OFF control and external reset ON.
Displays the physical dimensions of the PMA50 relay.
Lists detailed electrical and environmental specifications for the relay.
Details the adjustable parameters like measurement scale, trip thresholds, and delays.
Describes the specifications of the relay output contact.
Lists the environmental conditions for operation, storage, and humidity.
Specifies terminal types, conductor cross-sections, and tightening torque.
Describes the relay's housing type, mounting method, and material.
Lists the safety and performance standards the device complies with.
Explains the PMA50 relay's functions, including motor protection types and applications for pumps.
Lists key features such as under-load control, TRMS current control, phase sequence control, and output relay.
Details how to select and change the operating mode of the device.
Describes the functionality of the external reset input when set to OFF.
Explains the external reset input functionality when set to ON.
Details how to connect the device based on selected configurations (1Ph/3Ph) and CTs.
Explains the relay's behavior and tripping indicators for incorrect phase sequence.
Describes the tripping mechanism and indicators for phase loss in three-phase systems.
Guides on adjusting thresholds and delays, and explains LED indicators during normal and fault conditions.
Explains the automatic reset function for under-load tripping and how to enable/disable it.
Shows the wiring for motor protection with start/stop buttons and external reset OFF.
Illustrates the wiring for motor protection with ON/OFF control and external reset ON.
Displays the physical dimensions of the PMA50 relay.
Lists detailed electrical and environmental specifications for the relay.
Details the adjustable parameters like measurement scale, trip thresholds, and delays.
Describes the specifications of the relay output contact.
Lists the environmental conditions for operation, storage, and humidity.
Specifies terminal types, conductor cross-sections, and tightening torque.
Describes the relay's housing type, mounting method, and material.
Lists the safety and performance standards the device complies with.
| Mounting | DIN rail |
|---|---|
| Protection degree | IP20 |
| Supply voltage | 24...240VAC/DC |
| Output | 1 CO (SPDT) relay |
| Functions | Phase sequence, phase loss, asymmetry |
| Operating temperature | -20...+60 °C |
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