Supco 3W2 3W2 Wire Hard Start Kit Capacitor

The Supco 3W2 3W2 Wire Hard Start Kit Capacitor is a Supco capacitor for HVAC repair and replacement work. Use it when the part number 3W2 and the listed specifications match the equipment being serviced.

The 3-Series hard starts provide the service professional with an OEM option when the application calls for a hard start. Combining a potential relay and start capacitor the 3 series provides a TRUE 3 wire solution. Features Mechanical Potential Relay True 3-wire solution NATE Recognized (Course #1867-0002) Voltage sensing Instant re-start 35 amp relay contacts Includes EZ snap bracket for quick installation 330 VAC capacitor UL Recognized Capacitor size (F): 189-227

Key Specs

• Voltage: 208-240V
• Horse Power: 3-1/2 – 4-12
• Product Type: Capacitor

Replacement Notes

Captured replacement references include TQS2. Confirm supersession details against the manufacturer parts list.

Expert Verdict

Reviewed by the SuperArbor Pro Desk: choose this part when the existing component label and unit documentation match 3W2 and the spec set above. It is best suited for targeted HVAC service repairs where exact fitment matters more than broad universal compatibility.

FAQs

What is the Supco 3W2 used for?

It is a capacitor for compatible Supco HVAC equipment. Match the part number 3W2 and the equipment service literature before ordering or installing.

Which specs should I verify before purchase?

Verify the spec set shown for this part: Voltage: 208-240V; Horse Power: 3-1/2 – 4-12; Product Type: Capacitor. The replacement should match the existing component and the unit documentation.

Does the electrical rating need to match exactly?

Yes. Confirm voltage rating 208-240V against the failed component label. Do not substitute a different rating unless the equipment manufacturer allows it.

Are replacement or superseded references available?

Captured cross-reference data includes TQS2. Verify any supersession directly against the manufacturer parts list before installation.

Who should install this HVAC component?

A qualified HVAC technician should install and test the capacitor. Disconnect power first, follow lockout procedures, and confirm safe operation after replacement.

Safety and Installation Notes

Disconnect power before service. HVAC electrical and combustion-related components should be installed and tested by a qualified technician. After installation, confirm wiring, mounting, airflow or fluid routing as applicable, and normal system operation.