DTH85 series thermal overload relay protect the motors Overload,Locking,Open phase(differential) Application The thermal overload relay protect the motors Overload,Locking,Open phase ... the Magnetic Contactors without addition brackets.(Applied model:GTH-22,40,85)£¦#9830;Safety coverThe finger proof ... prevent careless touch of electric conductor(Applied model:GTH-22,40,85)£¦#9830;Separation of power ...