🔍 Key Concepts

• In a permanent split capacitor (PSC) motor, the capacitor is connected in series with the auxiliary (start) winding all the time, not just for starting • Compare the number and style of capacitor housings on each motor (round can, oval can, plastic cover, terminal box, etc.) • Distinguish between a capacitor-start motor (large start capacitor used only for starting) and a capacitor-start, capacitor-run motor (two capacitors) versus a PSC motor (single, continuous-duty run capacitor)

💭 Think About

• Which pictured motor shows only one small, continuous‑duty capacitor with no obvious provision for a centrifugal switch to cut it out after starting? • On which motor does the capacitor look like a metal can rated for continuous service, rather than a large plastic or painted housing typical of start capacitors? • Which motor appears to have two distinct enclosures on top (suggesting both start and run capacitors) and therefore should be eliminated for a PSC motor?

✅ Before You Answer

• Eliminate any motor that clearly has two separate capacitor housings, since a PSC motor uses only one capacitor • Look for a capacitor that is likely oil‑filled, metal‑cased, and intended for continuous duty rather than a large electrolytic start capacitor • Verify that the motor you choose could operate without a centrifugal switch because the auxiliary winding (through the capacitor) stays in the circuit at all times