As shown in the illustrated combination...

🔍 Key Concepts

• Motor starter components: Identify the circuit breaker, contactor, control transformer, and overload relay in the illustration. • Power vs. control circuits: Distinguish between the high‑voltage motor power circuit and the lower‑voltage control circuit used for pushbuttons and coils. • Overload protection and reset types: Understand what provides short‑circuit protection vs. overload protection, and the difference between manual and automatic reset overloads.

💭 Think About

• Look at the labels and nameplates in the illustration: do you see any indication of a control transformer or a different control voltage than the motor voltage? • Consider what a circuit breaker in a combination starter normally protects and whether overload protection is usually handled by the breaker or a separate device. • Examine how overload relays typically reset on motor starters used for machinery: are they usually designed to restart automatically, or require a manual action after cooling?

✅ Before You Answer

• Verify whether a control transformer is present, which would indicate the control circuit voltage is different from the motor supply voltage. • Confirm which device actually provides overload protection for the motor (overload relay vs. circuit breaker). • Check if the overload relay shown appears to have a manual reset mechanism, or if anything suggests automatic reset.

As shown in the illustrated combination starter, what statement is true? See illustration EL-0181.

The primary function of the circuit breaker is for motor overload protection, as well as a means of disconnect.

The control circuit operating voltage is the same as the motor operating voltage.

The control circuit operating voltage is lower than the motor operating voltage.

The motor overload relay resets automatically upon overload.

🔍 Key Concepts

💭 Think About

✅ Before You Answer