Power Start Kit, Increases Compressor Starting Torque, SPP6, HS650, WSX-6, SPP6

⚡ Refrigeration / A/C Hard Start Assist Kit | SUPCO® SPP6 | SUPER BOOST

Brand new SUPCO SPP6 Refrigeration & Air Conditioning Hard Start Assist Kit. This solid‑state relay and start capacitor combo delivers a powerful torque boost to help compressors start faster, run smoother, and overcome locked‑rotor conditions.

Designed for single‑phase PSC compressors from 1/2 HP to 10 HP and operating voltages from 90–277 VAC. Ideal for residential, commercial, refrigeration, and heat pump applications.

Specifications

• Operating Voltage: 90–277 VAC
• Recommended Compressor Range: 1/2 – 10 HP
• Capacitor Size: 130–156 MFD
• Torque Increase: Up to 500%
• Relay Type: PTC Solid‑State
• Application: Single‑phase Air Conditioning / Heat Pump / Refrigeration

⭐ Key Features

• PTC Relay Technology — Solid‑state design eliminates moving parts
• 500% Torque Boost — Overcomes hard‑starting compressors
• Simple 2‑Wire Installation — Connects across run capacitor terminals
• Wide Compatibility — Works with PSC compressors from 4,000 to 120,000 BTU
• Cost‑Effective Upgrade — Replaces failed OEM hard start kits
• UL Recognized & NATE Certified
• Instructions Included

Ideal For

• Residential & commercial A/C units
• Heat pumps
• Refrigeration systems
• Units with long refrigerant lines
• Low‑voltage conditions
• Hard‑starting or frequently cycling compressors
• RV air conditioners (commonly recommended)

️ Installation Notes

• Mount securely near run capacitor
• Connect 2 wires across run capacitor terminals
• Verify voltage and compressor type before installation
• For PSC compressors only

Replaces Part Numbers

SPP6
WSX‑6
AP4502872
35702
DST‑6
ERPP6
HS6
HS650
SPP6 (OEM & aftermarket variants)

Compatible Models

Universal — fits all PSC single‑phase A/C, heat pump, and refrigeration compressors within listed HP and voltage range.

Boost starting power and extend compressor life with this OEM‑compatible SUPCO SPP6 Hard Start Assist Kit.