Best Industrial Electrical Capacitors for Hvac Start Capacitor Replacement (2026)
Selections were ranked by fit to common HVAC motor voltage/uF requirements, construction type, and value for maintenance and replacement use
The Verdict
- Best Overall: TEMCo 630-750 uF Start Capacitor 220-250V Round 2 Pack — Best for 220–250V replacements: two-pack round start capacitors that match common high-voltage HVAC start circuits
This roundup covers industrial electrical start capacitors suited for HVAC start-capacitor replacement, prioritizing electrical fit, construction, and value. Picks were chosen by matching voltage and microfarad ranges to common HVAC motor requirements, assessing build type and pack options for installers and maintenance teams
Top Picks
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1
Best Overall TEMCo 630-750 uF Start Capacitor 220-250V Round 2 Pack
Best for 220–250V replacements: two-pack round start capacitors that match common high-voltage HVAC start circuits
2-pack TEMCo start capacitors for HVAC, compressor, and pump systems. 630-750 uF, 220-250 VAC, 50/60 Hz; compact round design. Customers note good fit, easy installation, and value for money, with some durability concerns
- 630-750 uF, 220-250 VAC
- 2-pack for multiple applications
- easy installation
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2
TEMCo 189-227 uF MFD CD60 Start Capacitor, 110-125V AC
Best for 110–125V compact starts: mid-range uF that fits many single-phase HVAC start requirements with CD60 construction
Round start capacitor for HVAC, compressor, or pump. 189-227 uF, 110-125 VAC, 50/60 Hz; operates from -40 C to +65 C. Easy to install and serves as a solid replacement part
- 189-227 uF range
- 110-125 VAC compatibility
- 50/60 Hz operation
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3
TEMCo 378-454 uF Start Capacitor 110-125V 50/60 Hz
Best for higher-uF 110–125V needs: wider 378–454 uF range suitable for larger single-phase motor starts at 50/60 Hz
Round start capacitor for HVAC, compressor, and pump applications. Operates 110-125 VAC, 50/60 Hz, with a -40 C to +65 C range; provides 378-454 uF at 1.44" diameter and 3.37" height. Customer note: fits well and easy to install; some report mixed lifespan
- 378-454 uF range
- 110-125 VAC, 50/60 Hz
- compact round form factor