Five Two One — HVAC Capacitors, Relays & Hard Start Kits
Five Two One (521) designs and manufactures premium-quality HVAC electrical components, including capacitors, relays, and hard start kits trusted by technicians nationwide. At HVACProSales.com, you’ll find a full selection of Five Two One OEM and replacement parts built for reliability, performance, and easy installation. Perfect for HVAC system startups and repairs, these products deliver proven durability with fast dropship delivery and expert support.
Why Choose 5-2-1 for Your HVAC System?
The 5-2-1 line delivers advanced surge protection and start assist technology to safeguard your air conditioning system. Our **compressor saver** and **surge protector** devices help:
- Reduce stress during startup and shutoff cycles
- Protect against voltage spikes and electrical surges
- Extend the lifespan of the compressor and avoid costly failures
- Offer reliable performance and ease of installation
Featured Products
- 5-2-1 Surge Protector (voltage spike protection)
- 5-2-1 Compressor Saver / Start Assist Kit
- Hard Start / Start Capacitor Accessories
Technical Highlights & Compatibility
Our surge protection devices integrate ground and phase wiring to intercept harmful transients before they reach expensive HVAC components. Each unit is designed to work seamlessly with standard residential and commercial air conditioning systems. Check product specs, voltage ratings, and wiring diagrams on each product page.
Installation & Support
We provide full wiring diagrams, installation instructions, and technical documentation for installing 5-2-1 devices correctly. For questions, contact our support team.
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