Thermal overload relays TI 9C are used with minicontactors CI 4 for class 10 protection of squirrel cage motors where space is a premium.
The relays have single-phase protection, i.e. accelerated release if phase drop-out occurs. This is particularly important for motors with delta connected windings.
Features
Stop/Reset button
Manual/Automatic reset
Test button
Double scale for direct start or Y/D start
Signal contact with change over or galvanically isolated