current monitoring relays block 3RR22 With (4NO+1NC)

Function :-
1. Undercurrent
2. Overcurrent
3. Apparent current
4. Active current
5. Phase failure / wire break
6. Phase sequence
7. Internal ground fault detection (fault current)
8. Block current

Application :-
1. Emergency lighting
2. Heating systems (electroplating plants, plastic injection machines, paint shops)
3. Lamps (tunnels, OR lighting, traffic lights, signal systems, UV lamps, infrared radiators, laser lamps)
4. Fan
5. Pumps
6. Sawing system
7. Conveyor belt
8. Surface grinding machine
9. Breaking mill
10.Milling machine
11.Car wash
12.Lifting platform
13.Screw conveyor
14.Crane
15.Turning machine
16.Woodworking
17.Grain mills
18.Steel industry

This current monitoring relays block is easily insert in your schematic diagram and connect as you like way.

Application areas
The 3RR2 current monitoring relays are used, for example, in the following applications:
1. Monitoring for current overshoot and current undershoot
2. Monitoring for cable breaks
3. Monitoring for no-load operation and load shedding (as might be the case, for example, in the event of a torn V belt)
4. Underload monitoring in the lower performance range (if a pump was running in no-load operation, for example)
5. Monitoring for overload (as might affect pumps with a soiled filter system, for example)
6. Monitoring the performance of electrical loads such as heaters
7. Monitoring for incorrect phase sequences on mobile equipment such as compressors or cranes
8. Monitoring for high-impedance faults to ground (caused by damaged insulation or moisture, for example)

Basic version (3RR22): digital setting via a display, 3-phase monitoring, CO contact, and semiconductor output; also monitors phase sequence, phase failure, ground fault and blocking current.