WEG RW thermal overload relays are designed to be combined with contactors to assemble motor starters.
Thermal overload relays are a reliable way to protect motors, controllers and branch-circuit devices against phase failures and overloads that can cause excessive heating.
RW series overload relays are designed to protect 3-phase and single phase AC motors and direct current motors. Ideal for use with CWM Series Contactors
These overload relays must be protected against short-circuits by fuses or circuit breakers.