What are the types of Relay ?

1. OLR (Over Load Relay)
2. OCR (Over Current Relay)
3. OVR (Over Voltage Relay)
4. Mercury Relay
5. Polarized Relay
6. Solid State Relay
7. M/C tool Relay
8. Reed Relay
9. Latching Relay
10. Bucholz Relay etc.,