Contactor
Contactor
We supply premium contactors by Togami, Fuji, HITACHI, Shihlin, Chint. These components ensure reliable switching, superior durability, and safe control for industrial automation and power systems.
With two decades as a trusted expert in refrigeration compressors and their critical accessories, ascompressors.com understands that precise and safe electrical control is paramount. The contactor is a fundamental electro-mechanical switching device, indispensable for safely starting, stopping, and protecting the high-current motors found in refrigeration compressors and other HVAC equipment. As your dedicated supplier, we offer a comprehensive range of high-quality contactors designed for the rigorous demands of commercial and industrial cooling systems.
A contactor acts as an electrically controlled switch used for switching an electrical power circuit. Unlike relays, which are typically used for lower current circuits, contactors are designed to handle high currents required by motors. In refrigeration, they are crucial for connecting and disconnecting the power supply to the compressor motor, condenser fan motors, and other high-load components, ensuring controlled operation and providing a layer of safety against overcurrents and voltage fluctuations.
Core Contactor Types and Key Products:
Our extensive inventory includes a variety of contactors, carefully selected for their durability, electrical specifications, and reliability in refrigeration and HVAC applications. We focus on providing solutions that offer seamless integration and robust performance:
Definite Purpose Contactors (DP Contactors): Specifically designed for the unique needs of HVACR applications, these units offer compact sizes, multiple pole configurations (e.g., 1-pole, 2-pole, 3-pole, 4-pole), and various ampere ratings. DP contactors are highly reliable for switching compressor motors, condenser fan motors, and heating elements. We stock models with different coil voltages (e.g., 24V, 120V, 208/240V, 480V) to match diverse control circuits.
IEC and NEMA Rated Contactors: For heavy-duty industrial refrigeration and large HVAC systems, we supply contactors conforming to International Electrotechnical Commission (IEC) and National Electrical Manufacturers Association (NEMA) standards. These robust, long-lasting units are suitable for frequent switching and demanding environments, offering higher current ratings and often modular accessory options.
Magnetic Contactors: As the most common type, these units use an electromagnet to operate the switch contacts. We provide magnetic contactors with various coil types and auxiliary contacts for signaling and interlocking with other control components.
Solid-State Contactors: For applications requiring extremely fast switching, silent operation, or very high switching frequency, we can source solid-state contactors. These units use semiconductors instead of mechanical contacts, offering an extended lifespan in specific scenarios.
We also supply essential contactor accessories, including auxiliary contact blocks, shunt trips, mechanical interlocks, and replacement coils, enabling customization and extending the functionality or lifespan of your control systems.
Essential Applications and Industries for Our Contactors:
The reliable power switching provided by our high-quality contactors is vital across a broad spectrum of commercial and industrial cooling applications:
Refrigeration Compressors: Safely controlling the power supply to reciprocating, scroll, screw, and rotary compressor motors in all types of refrigeration units.
HVAC Systems: Managing main power to air conditioning units, heat pumps, chillers, and large air handlers.
Condenser and Evaporator Fans: Controlling the motors for fans that ensure efficient heat exchange in refrigeration and AC units.
Pumps & Motors: Providing reliable on/off control for electric motors driving pumps, blowers, and other auxiliary equipment in industrial cooling processes.
Commercial & Industrial Facilities: Found in supermarkets, restaurants, cold storage warehouses, food processing plants, data centers, and manufacturing facilities, managing power for critical cooling infrastructure.
Innovation, Reliability, and Unrivaled Expertise:
At ascompressors.com, our 20 years in the refrigeration field have taught us that reliable electrical control is non-negotiable for system safety and efficiency. A high-quality contactor protects your valuable motors from electrical stresses and ensures seamless operation. By choosing our contactors, you're investing in enhanced system reliability, reduced electrical downtime, and improved overall safety for your refrigeration or HVAC equipment. Our technical team possesses the deep knowledge required to assist you in selecting the ideal contactor for your specific application, ensuring proper sizing, compatibility, and robust performance. Trust us for precise and safe power control in your cooling solutions.
Why Shop for Compressors at "A&S Aerodynamic"
Here at A&S Aerodynamic, we offer a wide range of refrigeration compressors from various brands and models. Our products are sourced from reputable brands in the industry, so you can be sure they’re made to fit OE specifications.
1. Before shipping, we will send you photos of the actual product for your confirmation ( eg. nameplate, appearance, and report).
2. The product comes with a 1-year manufacturer warranty policy and 3-year in-house warranty.
3. If the product is damaged during transportation or cannot be repaired due to non-human-caused within 1 year, no return, we will directly refund or resend the new product.
4. For select items, we will include a repair kit ( Special Needs Customer Service ).
5. Enjoy a worry-free experience throughout the entire process. Feel free to request quotes and place orders with confidence, we will provide 5-star service until you are satisfied.
6. Shipping and Taxes: See Quotation.
Need your compressors as soon as possible? Don’t worry; our warehouses are strategically located across the country to ensure fast, efficient shipping. Our primary strength lies in supply capability. Whether it's OEM manufacturing or global inventory searches—from components to complete units—we can match your needs with the nearest partner's inventory for rapid delivery. Our global alliance enables transactions at wholesale agency rates. Welcome aboard! Cheers!!
Contactor Buyer's Guide
The Nameplate is Key: The model number alone is sometimes insufficient. We request a clear photo of the manufacturer’s metal nameplate. This confirms the specific Series, Voltage, and Bill of Material (BOM) number.
Refrigerant Verification: You must confirm the gas type (e.g., R134a, R404A, R290, or R410A). Using the wrong refrigerant in a Contactor compressor designed for a different gas will lead to immediate failure and void the warranty.
Voltage & Frequency Check: Global power grids vary. Whether you need 115V/60Hz (USA), 220V/50Hz (Europe/Asia), or 3-Phase 380V, this must be explicitly confirmed during the inquiry stage to prevent electrical burnout.
Application Matching: We verify if your application requires LBP (Low Back Pressure for freezers), MBP (Medium), or HBP (High Back Pressure for A/C and chillers). Installing an LBP compressor in an HBP application will cause the motor to overheat.
Performance Benchmarking: Before shipment, units undergo rigorous testing for volumetric efficiency, motor amperage draw, and noise levels
The Test Report: For peace of mind, we can provide a Quality Inspection Report or a video of the Contactor compressor under load test, proving it holds pressure and operates within factory specifications before it leaves our facility.
Spot Buy (Ready Stock): For urgent repairs, we leverage our global inventory of popular brands (Tecumseh, Copeland, Danfoss) to offer "2nd-Day Dispatch" on common Contactor models.
Batch Production (OEM Orders): For distributors or appliance manufacturers requiring 50+ units, we schedule a production run. This typically requires a 2-4 week lead time but offers significant cost savings.
Condition Clarity: We clearly distinguish between "Factory New" (fresh production) and "New Surplus" (older stock). We allow you to choose based on your budget and warranty requirements.
Robust Crating: We do not use standard cardboard for international freight. All compressors are bolted to a pallet and sealed in fumigated wooden crates compliant with ISPM 15 standards for global entry.
Upright Transport: Compressors must remain upright to prevent oil from entering the compression chamber (which causes "liquid slugging"). Our packaging includes "This Side Up" shock sensors and indicators.
Customs & Documentation: We handle the complex paperwork, including Commercial Invoices and Certificates of Origin, ensuring your goods clear customs smoothly whether shipping via DHL Air Express or Sea Freight to any port in the world.
Request a Custom Quote
To get a customized quote, please provide the following information:
1. Machine Model
2. Item Parameters
3. Part Number
4. Photos
5. Quantity
6. Working Conditions
7. Any Other Requirements
Please email your complete request to us or Chat Online, and we will respond with a quote as soon as possible.
