Copyright 2019 - Dayatama Ciptamandiri

2 types of overload relays :
- Thermal Overload Relay (TOR - T7, TA25, TA42, TA75, etc)
- Electronic Overload Relay (EOL – E16, E200, etc)

Design and the functionality :
- Bimetallic releases at each phase (for tripping the relay)
- Trip-free mechanism
- Tripping category