The FUJI ELECTRIC SZ-HB is a versatile relay mounting base designed for thermal overload relays, specifically compatible with types TR-ON/3. This base unit is ideal for independent mounting applications and is engineered to combine seamlessly with thermal relays for electromagnetic switches. Featuring a screw mounting design and an IEC top hat shape, the SZ-HB ensures secure and efficient installation. Perfect for industrial automation setups, this component enhances the functionality of motor starters and contactors.