Air Conditioner Contactor Relay

Air Conditioner Contactor Relay

Winston 48VDC 400A Contactor Used for Engineering Machinery 1NO/1NC 200A Relay.
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Product Details

Product Description

SW181 ASW200 200A DC Motor Contactor SPDT 36V Automotive Air Conditioning Power Relay 

Name: DC Contactor

Model: ASW200-1Z/SW181

Rated Voltage: DC12/24/48V

Rated Current: 200A

Dimension: 62*66.5*135(mm)

Weight: About 1000g


Coil Rated Voltage

DC12V, 24V, 36V, 48V

Main Circuit Rated Current (A)


Main Circuit Contact Voltage Drop Of (load:100A)


Under (20±5℃), Cooling Pull-in Voltage


Under (20±5℃), Cooling Release Voltage

≥5%, ≤40%

Acceptable Fluctuation Range of Coil Voltage


Electrify Time


Disconnecting Release Time


The Max Disconnecting Time of Contacts


Insulation Resistance


Dielectric Strength

50Hz/60Hz 1000VAC/1min

Overload Current

≤7Ie, ≤1s

Coil Consumption (W)


Electrical Life

20000 times

Mechenical Life

300,000 Times

Working Mode


Contacts Type

1 NO and 1 NC

Contact Material

AgCdO / AgCuO

Starting Current


Technical Standard


Usage Environment



Amblent temperature


International protection


Installation type


Way to install





50g,11ms(Half-sine wave)



Schematic Diagram


Installation Diagram


About us

Yueqing Winston electric co., LTD. (Winston inverter), founded in 2008, is a high-tech enterprise specializing in the development, production and sales of inverters.In the process of product research and development, the company always adheres to the production purpose of quality first, and adopts the world-class high-tech (such as DSP technology, current vector technology, IPM) to professionally produce and sell frequency converters and elector-mechanical electronic products. The product has four characteristics of high efficiency, small size, little noise and ultra-stable performance.The products are widely used in all kinds of automatic mechanization equipment in China and abroad.


● We have 3 senior engineers in our R&D dept, we design and produce all kinds of voltage transformers regulators, stabilizers rector on the basis of our customers’ specific requirements. 


Winston attaches great importance of Product Quality and Safety Production Process. Our company has passed ISO Certificates. Our products are listed by CQC, CE, RoHS certificates.

Winston will insist her belief "Quality is Brand"to bring "Better Quality, Better Service and Better Price"to customers, our goal is to maximize your profit and bring mutual success to both of us!


We have customers from all of the world, and we hold exhibitions in different country.



Mainly occupied the international market. Exported to Southeast Asia , Europe, North America, Australia, Middle East and other countries and regions, enjoy a high reputation in the world.



1. Q: Do you have the catalogue? Can you send me the catalogue to have a check of all your products?

A: Yes, we have the product catalogue. Please contact us on line or send the Email to us for it.

2. Q: I need your price list of all your products, do you have it ?

A: We do not have a price list of our all products. There are so many items, and the prices are always changing because of the producing cost. Please kindly let us know the specific products that you need, we will send offer to you soon!

3. Q: I can’t find the product on your catalogue, can you make this product for me?

A: Our catalogue shows most of our products,but not all.So please let us know the detailed parameters of the products you need, we will check for you.

4. Q : Can you make customized products and customized packing?

A: Yes, customized services are available in our company. Kindly let us know your detail requirements,we can custom-make for you.

5. Q: Can you provide samples ? Are the samples free ?

A: Because the unit prices of our products are very high, free samples to every customer is a little difficult for us. While we can minus the samples charge in the official order amount. And old clients can enjoy the free sample service.

6. Q: Which kind of payment you can accept? Can I make the payment in RMB ?

A: T/T(bank transfer), Western Union and Paypal are all available. And RMB, USD, EUR, GBP, HKD are acceptable.

7. Q : What about your delivery time?

A: Many of our products are in stock. We can send the stock products in 3 working days. If without stock,or stock is not enough, we will confirm the delivery time with you.

8. Q : How to deliver my order ? Is it safe?

A: For small packages, we will send them by Courier, such as DHL,FedEx,UPS,TNT,EMS, etc.That’s a Door to Door service. For big packages, we will send them by Air or by Sea. We will pack them carefully in accordance with the export standards to ensure the safety. Please check the packages before signing them. If there is any damage of the cartons, please contact us first, and not sign them. 

9. Q: Do you have a guarantee of your product quality?

A: We have a guarantee of one year.

10. Q: Can I become an Agent / Dealer of AOKAI products?

A: Welcome! But please let us know your Country/Area first, and your annual sale volume, then we could have a further discussion. If you want any other kind of cooperation, do not hesitate to contact us.

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