VR-810MRK
Standard features
Have such protection functions as short circuit protection, stalling protection, overload anti time protection, earthing protection, open phase / unbalance protection, underload protection, TE curve protection, electric dazzling protection;
Measure such electrical parameters as three-phase current, zero-sequence current, three-phase current unbalance factor, realize comprehensive protection for motor;
The relay protection output is by means of protection trip and it completely takes place of conventional thermal relay. Secondary circuit is placed in through normal closed contact of intermediate relay.
Wide range AC/DC power supply AC/ DC110V ～ 250V;;
RS-485 communication interface, Modbus-RTU communication protocol;
4 channel switching value input can realize the acquisition of external state quantity; 2 channel relay protection control output, used in protecting tripping and failure alarm output etc;
Display unit: LCD display the real time value of three phase current and protection event record,the protection parameter can be set through the display unit or communication software.
Optional features
1-channel programmable analog output 4mA~20mA (A)
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, MT5
Overall Dimensions:
