Description
Product Summary
The Supco 3W1 3 Wire Hard Start Kit is a professional-grade replacement part from Supco (Sealed Unit Parts Co.), a trusted name in HVAC/R and appliance parts since 1945. 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.
Hard start kits give a struggling compressor the extra starting torque it needs on low-voltage days, after long off-cycles, or when an aging compressor begins to trip on locked-rotor amps. Adding the correct hard start reduces start-up current spikes, cuts down on nuisance breaker trips, and can extend compressor life on PSC-type single-phase systems. Always match the kit to the compressor horsepower and system voltage.
Key Features
- Includes EZ snap bracket for quick installation
- Instant re-start
- Mechanical Potential Relay
- NATE® Recognized (Course #1867-0002)
- True 3-wire solution
- UL® Recognized
- Voltage sensing
- WARNING: Prop 65 info
Specifications
| Brand | Supco |
|---|---|
| Part Number | 3W1 |
| Part Type | Hard Start Kit |
| Capacitor Voltage | 330 VAC |
| Range (HP) | 1 to 3 HP |
| Capacitor (MFD) | 88 to 108 MFD |
| Operating Voltage | 208 to 277 VAC |
| Vmax @ 40°C | 332 VAC |
| Resistance +/- 10% at 25°C | 5600 ohms |
| Pick Up | 162-175 @ 25°C |
| Drop Out | 40-90 @ 25°C |
Cross Reference
The Supco 3W1 is a direct replacement for the following OEM and competitor part numbers. Always verify ratings and fit against the original part before installing.
| Replaces Part # | Manufacturer | Description |
|---|---|---|
| TQS-1 | Diversitech® |
Ideal Applications
- Residential and light commercial air conditioners and heat pumps
- Hard-starting or locked-rotor compressors
- Low-voltage sites and long line runs
Frequently Asked Questions
Can the hard start be mounted sideways?
No, hard starts should always be upright.
Are the wire leads polarity sensitive?
No
Where do I attach the (2) wires? (Always disconnect power before installation)?
See the White Paper section on this page. Wiring diagrams are in the pdf file.
White Paper
- Supco 3W1 Product Specification Sheet (PDF)
- Supco 3W1 Product Specification Sheet 2 (PDF)
- Supco 3W1 Application Sheet (PDF)
What's Included
- (1) Supco 3W1 3 Wire Hard Start Kit
Safety: Always disconnect power and follow lockout/tagout procedures before servicing electrical components. Installation should be performed by a qualified technician.
