Load Contactor

Load Contactor

AC contactor belongs to modular controlling electrical equipments, which has novelty structure,compact size, it is DIN-RAIL for installation,size of modular ,modeling artistic.
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Product Details

Product Details

WST series home AC contactor is a kind of control electric appliance which is used for long distance/remote  switch on and break off  a non-inductive load  or low inductive load, such as electric resistance furnace, household appliances and similar low inductive load,motor and other household application.

Technical data.

The contactor is mainly used in AC 50/60Hz,Rated voltage up to 400V, rated current up to 100A.

Temperature: 5℃~+40℃,AVG not over within 24h+35℃

Altitude : not over 2000m.

Atmospheric conditions: RH+40℃ not over 50% under,RH can be for 90% under +20℃,In dewing,it should be taken sp ecial precautious.

Class of pollution: 2

Installation type : II

Mode of installations: TH35-7.5 types steel DIN-RAIL

IP Grade: IP20

AC-1/AC-7A swithing of heaters

TGC3 20

TGC3 24

TGC3 40

TGC3 63

Rated operation current Ie(NO)





Rated operation current Ie(NC)





Rated operation power(NO)

230V Single-phase





230V Three-phase




400V Three-phase




AC-3/AC-7B switching motors

Rated operation current Ie(NO)





Rated operation current Ie(NC)



Rated operation power(NO)

230V Single-phase





230V Three-phase




400V Three-phase




Working Principle.

The working principle of the contactor: Upon energization, the circuit with current will create a magnetic field and generate sufficient magnetic adhesion to overcome counterforce, close armature and connect the contacts. When the coil voltage dies out or reduces to a certain value(i.e. at the state of voltage release), for the flux generated at the end face of the armature decreases, the magnetic adhesion becomes weaker than the counterforce generated by the reaction spring, contact spring, etc. Under the counterforce, the armature will be released and free from the field yoke, and then the contacts will be disconnected.




About us

Yueqing Winston Electric Co., Ltd. is not only an exporting company, but also a professional manufacturer in China. We have our own production base. The products we professionally deal with are switching power supplies, sensors, relays, voltage stabilizers, AC contactors, circuit breakers, distribution boxes, industrial plugs & sockets and others.



We are committed to achieving the highest levels of customer satisfaction. Our customers are not just names and numbers. For us, they are faces and relationships. We believes that all customers deserve prompt and courteous service, a phone call answered by a person, and product support after the sale. Our superior customer-service focus and relationship-based execution has been recognized repeatedly by our customers.



1. We can use the customer's packaging requirements, please contact us for more information

2. Each product is filled with thick boxes, the transport process completely protect the goods

3. Use standard thick cardboard packaging

Shipping and payments:

1. According to customer requirements choose to transport or air.

2. FAST SHIPPING from our Wenzhou China Factory.

3. Item shipped in 3-15 working days after payment is received depends on the quantity of the order.

4. Item shipped by FedEX,TNT,DHL and others, depending on size and weight of total order.

5. Items are only sent to the addresses listed on the invoice; they are not responsible for shipping to other addresses.

6. We always put the customer's needs in the first place.

7. On call,24 hours a day,7 days a week.

Yueqing Winston Electrical Co.,Ltd produce several series products for you choose, if you are interesting in any of our product, please feel free to contact us or E-mail us,we are happy to give you more details. 



Q:Are you factory?

A:Yes ,our factory is located in Wenzhou,two hours to Ningbo,four hours to Shanghai and two hours to Yiwu by train.Only 40 minutes to Wenzhou international Airport by car.

Q:Do you offer OEM service?

A:Yes,we have been providing OEM/ODM service to global manufacturers and suppliers for many years.

Q:Haw many employees do you have?

A:We have more than 4000 employees now,with in-house R&D teem.

Q:What′s your guarantee?

A:We offer 2 years guarantee.

Q:What′s your quality standard?

A:Our products are complied to CE,ROHS,CB,IEC,VDE,TUV,SEMKO.

Q:What′s your payment term?

A:Our regular payment term is 30% in advance, the rest 70% against copy of B/L or L/C at sight. Other payment terms is acceptable case-by-case.

Q:Are samples available before order?And do you charge samples?

A:Yes ,samples are normally available in 7-10 days after the receipt of sample payment.But the sample payment will be retuened to you once place an order.

Q:How long is the delivery time?

A:Depends on your quantity,but our regular delivery time is 25-30 days.

Q:What′ s material of your product?

A:We ues fire-proof plastic for the frame,red copper and silver for inside compoents.

Q:Why choose us?

A:We serve our customers with our expertise , enthusiasm and customer-oriented attitude. We always put employees and customers at first and try to improve the lives of the people we employ and exceed customers′ expectation. Mutual benefit and shared growth is what we want to achieve.

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