VR-810MR-3
Standard features
Have such protection functions as short circuit protection, stalling protection, earthing protection, open phase/unbalance protection, TE curve protection, current leakage protection (with external CT), electric dazzling protection;
Measure such electrical parameters as three-phase current, zero-sequence current, three-phase current unbalance factor, realize comprehensive protection for motor, and record the protection events;
Protection method: relay protection output method, realizing protection function by means of relay normal closed contact (hard closed contact) placing in secondary circuit;
Wide range AC/DC power supply AC/ DC110V ～ 250V;;
RS-485 communication interface, Modbus-RTU communication protocol;
8-channel remote digital signal input, 4-channel remote relay control output;
Integrated measurement and SOE records, real-time reading via communication interface; the protection parameters can be set through display unit and communication software;
Optional features
Extended display unit: real-time display of power measurement, on-site setting of parameters
1-channel programmable analog output 4mA~20mA (A)
Double RS-485 communication interface (C)
Profibus-DP communication interface (DP)
DeviceNet communication interface (DE)
Connected to zero-sequence/leakage CT input, measure zero-sequence/ leakage current (Y1A/Y50)
There are two current input modes available for user's choice.
1. Special small CT input (MT optional): less than 15A( MT25), 15A-60A(MT100 )、30A-110A( MT150)、60A-150A(MT250 )
2. In case of more than 150A, adopt standard CT (1A/ 5A)
Select one from DP, DE and double RS-485 communication functions
Overall Dimensions:
