🔍 Key Concepts

• Difference between a magnetic contactor and a motor starter (contactor plus overload relay) • How an overload relay block looks and where it usually mounts on a contactor • How a reversing contactor arrangement uses two contactors and an interlock bracket

💭 Think About

• Look at each picture and decide which devices include an overload relay section and which show only the contactor itself • Ask yourself which option shows a single contactor unit, not paired contactors or added overload protection blocks • Consider how many separate major components are combined in each option and which one is just the contactor body with coil and power contacts

✅ Before You Answer

• Verify which picture does not have an adjustable overload dial, RESET button, or heater connection block on its front • Identify which view shows only one contactor instead of a reversing pair or contactor-plus-overload combination • Confirm that the choice you pick has the typical features of a contactor: coil section, movable armature, and line/load power terminals, but no separate overload relay block