DMPUC-05/DMPUC-65 Motor Protection Unit View larger

DMPUC-05/DMPUC-65 Motor Protection Unit

DMPU is a modular electronic motor protection relay that provides protection, monitoring and metering functions for 3- phase, constant or dual speed, AC induction motors. The modular housing is for DIN-rail mounting with IP20 protection degree.

The device, in its basic configuration, is able to measure the electrical motor variables (current, voltage, harmonic distortion, etc), to control the thermal image of the motor, and also its load, operational status (startstop, star-delta starting, 2 speeds, alarm set-point and other functions adjustable by the user), motor temperature and includes an event datalogger.

The current measurement is carried out by means of 3 external current transformers, or by passthrough holes up to 5 A. Being provided with a serial communication module, it is possible to gather all the relevant instantaneous values and transmit them to a host control system for data collection and process control. Profibus and Modbus TCP protocols are available for a high connectivity to the most used fieldbus systems.

Through the optional remote display (for panel mounting) it is possible to see the instantaneous values and status and also to modify the set-points and the values of other parameters. The whole programming of the unit is to be performed via configuration software. 

Additional optional modules allow the collection of additional PTC and PT100 values for coils and bearing temperature control, and additional input/outputs are used for some local onboard logic functions.

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Features

• Measures 3-phase current, 3-phase voltage with neutral

• RJ 11 connection to main module

• Pass-through version up to 5A or 65A

• 2 relay outputs

• Split core housing for 5A version

• Dimensions: 3-DIN module

• Protection degree: IP20

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