electronic overload relays Block 3RB10

Functions:-
1. Scale for setting the rated current of the load.
2. Reset button (blue): Press the RESET button to get the relay ready before putting it into operation or after tripping.
3. Stop button (red): The stop button opens the normally closed contact, which remains open until the button is released again. The downstream contactor and thus the motor can be switched off. Press the STOP button to switch the relay off when it is in operation. The normally closed contact of the auxiliary switch opens. The relay remains ready for operation.
4. Device type plate
5. Terminals for three motor supply lines
6. Terminals for normally closed/normally open contacts (95/96 for normally closed contacts, 97/98 for normally open contacts)
7 Contact position indicator/test :- The slider for the contact position indicator also serves as a test function.
When it is operated, tripping of the overload relay is simulated. The normally closed contact (95/96) opens, and the normally open contact (97/98) closes. The switching position is indicated.
8. Switch for manual/auto RESET: By pressing and turning the blue button you can select automatic or manual reset. In the case of the relay setting M (manual reset), the switching position of the relay is indicated:
I = ready for operation
O = tripped
9. Only in the case of frame size S00: Terminal A2: repetition terminal of the contactor coil Terminal 14/22: repetition terminal of the contactor auxiliary contact.

This electronic overload relays Block is easily insert in your schematic diagram and connect as you like way.

The self-powered 3RB10 electronic overload relays from 0.1 A to 630 A are available with tripping classes CLASS 10 and CLASS 20. With these two tripping classes they offer optimal current dependent protection of loads with normal- and heavy starting. The 3RB10 electronic overload relay is similar to the 3RU11 thermal overload relay in dimensions, in operational control and in the way they mount to contactors. That way the thermal overload relay can be easily substituted by the electronic version, when the application requires phase loss trip within 3 seconds, a wide current adjustment range (1 : 4) or also lower heat generation. The accessories for the thermal and electronic devices are identical. The 3RB10 electronic overload relay are insensitive to outside influences, such as vibration, aggressive environment, weathering and strong temperature swings. In the temperature range of –25 °C to +70 °C the 3RB10 electronic overload relays in the sizes S00 to S3 are temperature (ambient) compensated according to IEC 60 947-4-1/DIN VDE 0660 part 102. the 3RB10 electronic overload relays the recovery time is fixed when set on Automatic-RESET and lasts about 4 minutes for frame sizes S00 to S3 and about 7 minutes for frame sizes S6 and S10/S12. When set to manual RESET then the device can be reset immediately.