Capacitor

Capacitor

We supply high-performance capacitors by SK, SPRAGUE, BHC. These components ensure stable filtering, high ripple current handling, and long service life for industrial and audio-grade applications.

Warranty

2 Years

Products Available

20+ Million

Cases

65

Shipping to

100+ Countries

Patents

54

Engineers

150+

For two decades, ascompressors.com has been the trusted authority in the refrigeration industry, specializing in compressors and their vital components. We understand that reliable motor operation is non-negotiable for efficient cooling. Capacitors are indispensable electrical components that provide the necessary electrical "kick" for motors to start, and then ensure smooth, efficient operation once running. As your dedicated supplier, we offer a comprehensive range of high-quality capacitors designed for the rigorous demands of commercial and industrial refrigeration and HVAC systems.

A capacitor is an electrical device that stores electrical energy in an electric field. In refrigeration and HVAC applications, capacitors are crucial for single-phase AC motors, including those found in compressors, condenser fans, and evaporator fans. They create a phase shift in the motor's windings, generating the necessary torque to start the motor and/or improving its running efficiency and power factor. Without the correct capacitor, a motor may fail to start, run inefficiently, overheat, or suffer premature failure.

Core Capacitor Types and Key Products:

Our extensive inventory includes a variety of capacitors, carefully selected for their durability, electrical specifications, and reliability in demanding refrigeration and HVAC environments. We focus on providing solutions that offer seamless integration and robust performance:

• Start Capacitors: These provide a temporary boost of current to help a motor overcome its initial inertia and start spinning. They are typically used for a very short duration (a few seconds) during the motor's startup cycle and are then taken out of the circuit by a centrifugal switch or relay. We offer start capacitors with various MFD (microfarad) ratings and voltage tolerances (e.g., 125V, 250V, 330V) to match specific motor requirements.

• Run Capacitors: Once the motor is running, run capacitors remain in the circuit, continuously providing a phase shift to optimize motor efficiency, reduce power consumption, and ensure smooth operation. They are designed for continuous duty and are crucial for maintaining the motor's power factor. Our range includes run capacitors with various MFD ratings and voltage tolerances (e.g., 370V, 440V, 660V AC).

• Dual Run Capacitors: These are highly common in HVACR systems. A single dual run capacitor contains two capacitors in one unit, typically for the compressor and a fan motor. They feature three terminals: "Herm" (for compressor), "Fan" (for fan motor), and "C" (common). This compact design simplifies wiring and reduces space requirements. We supply dual run capacitors in a wide range of MFD combinations to suit various compressor and fan motor pairings.

• Motor Protection Capacitors: While their primary role is motor operation, some capacitors contribute to the overall electrical stability, indirectly offering protection by ensuring the motor operates within its design parameters.

We ensure our capacitor offerings meet or exceed industry standards for safety and performance, including features like pressure-sensitive interrupters for safety, robust casings, and broad operating temperature ranges.

Essential Applications and Industries for Our Capacitors:

The reliable electrical energy storage and delivery provided by our high-quality capacitors are vital across a broad spectrum of commercial and industrial cooling applications:

• Refrigeration Compressors: Essential for starting single-phase compressors (hermetic, scroll, reciprocating) and improving the running efficiency of both single-phase and some three-phase motors.

• HVAC Fan Motors: Powering condenser fan motors and evaporator blower motors in residential, commercial, and industrial air conditioning units, heat pumps, and air handlers.

• Pumps & Other Auxiliary Motors: Providing starting and running power for various pumps (e.g., condensate pumps, chilled water pumps) and other auxiliary motors within cooling systems.

• Commercial & Industrial Facilities: Used in supermarkets, restaurants, cold storage warehouses, food processing plants, data centers, and manufacturing facilities to ensure the reliable operation of all motor-driven cooling equipment.

• Specialized Cooling Equipment: Vital for precise control and efficient operation in medical refrigeration, environmental chambers, and specialized industrial chillers.

Innovation, Efficiency, and Unrivaled Expertise:

At ascompressors.com, our 20 years in the refrigeration field have taught us that the right capacitor is a small investment that yields significant returns in system efficiency and longevity. A failing or incorrect capacitor can lead to motor overheating, reduced cooling capacity, and costly compressor failure. By choosing our high-quality capacitors, you're investing in improved motor performance, reduced energy consumption, extended equipment lifespan, and minimized downtime for your refrigeration or HVAC system. Our technical team possesses the deep knowledge required to assist you in selecting the ideal capacitor for your specific motor and application, ensuring perfect compatibility and robust performance. Trust us to deliver the power and precision your cooling solutions demand.