Start Capacitor: The Essential Boost for Your Motor The start capacitor is an essential electrical component found in many single-phase motors. Its main function is to provide the initial electrical impulse needed for the motor to start operating. This component acts only at startup, delivering a short but powerful boost of energy. Once the motor reaches a certain speed, the capacitor automatically disconnects and does not remain active during normal operation. Where Can It Be Used? Air conditioners Refrigeration compressors Water pumps Refrigerators Industrial fans Motors And in general, any HVAC equipment that requires a motor to start working Key Features: ? Robust and Compact Design: Round type, housed in a durable bakelite plastic case ensuring longevity and protection. ? High-Temperature Performance: Engineered to operate efficiently in environments up to 149ºF (65ºC), guaranteeing reliability even under demanding conditions. ? Terminals: Faston quick-connect male terminals (OE? / 0.250 inch). ? Universal Compatibility: Ideal for starting single-phase AC electric motors operating at both 50Hz and 60Hz. ? UL Certified Quality: With UL Listed ? E481006 certification, this capacitor meets the highest safety and quality standards. Technical Specifications Part No. Capacitance Dimensions (mm) Master Box Rating (uF) @ Voltage Capacitor Box 72-86-1 72-86 110/125 3670 3675 50 88-106-1 88-106 110/125 3670 3675 50 108-130-1 108-130 110/125 3670 3675 50 124-148-1 124-149 110/125 3670 3675 50 130-156-1 130-156 110/125 3670 3675 50 145-175-1 145-175 110/125 3670 3675 50 161-193-1 161-193 110/125 3670 3675 50 189-227-1 189-227 110/125 3670 3675 50 216-259-1 216-259 110/125 3670 3675 50 233-280-1 233-280 110/125 3670 3675 50 243-292-1 243-292 110/125 3670 3675 50 270-324-1 270-324 110/125 3670 3675 50 324-389-1 324-389 110/125 3685 3690 50 340-408-1 340-408 110/125 3685 3690 50 378-454-1 378-454 110/125 3685 3690 50 ? Frequently Asked Questions (FAQ) How do I know which capacitor I need? ?? Check the label on your current capacitor: ?? Make sure the capacitance falls within one of our available ranges (e.g. 72-86 µF). ?? Voltage rating must be 110V or 125V. ?? Ensure the physical size (diameter and height) fits the space available in your equipment. ?? Terminals should match (Faston OE? quick-connect male terminals). What happens if the new capacitor has a higher voltage rating (e.g., 125V instead of 110V)? No problem at all. You can safely use a capacitor with a higher voltage rating without affecting your system?s performance. In fact, a 125V capacitor provides better protection against voltage spikes and may offer a longer service life. The most important thing is that the capacitance (µF) matches or falls within the required range and that the capacitor is physically compatible with your system (size and terminal type). Still Not Sure? We're Here to Help! If your current capacitor matches the specs above, you're ready to order! Need help confirming compatibility? Feel free to message us