Carlo Gavazzi GT63L-40A Thermal Overload Relay

The Carlo Gavazzi GT63L40A Thermal Overload Relay is a bi-metal overload accessory in the GT63L family that provides adjustable motor protection in the 28–40 A range with a Class 10 trip, designed for use with Carlo Gavazzi 65AF contactors in AC motor-control circuits up to 690 V. The unit uses a bi-metal element for thermal protection and includes one normally closed and one normally open auxiliary contact for signaling and integration with control logic; the lug-terminal GT63L40A version is standard, with screw-clamp variants available in other configurations. With a maximum operating voltage of 690 V and an adjustable setting across 28–40 A, this relay delivers reliable overload protection for motors in industrial environments while maintaining compatibility with existing Gavazzi switching gear.