1250A Automatic Transfer Switch

SYK1 Series Automatic Transfer Switch 1250A

For more details, please contact us.


Suitable for AC 660V and below, rated frequency 50Hz, whether it is common or not. As long as within the technical parameters of the switch, all can be guaranteed safe ly and reliably operat in the corresponding voltage grades of occasions.

Why Choose Us

Dingbo is original manufacturer of diesel generator set. Factory direct sale, guaranteed quality and affordable price.


Our diesel generator sets are widely used in telecommunications, energy, transportation, real estate, hospital, residential building, data center and other fields, having long-term strategic cooperation with a lot of well-known enterprises. From research and development to production, from raw material procurement, assembly and processing to finished product debugging and testing, each process is strictly implemented, in all aspects meet the national, industry standards and contract provisions of the quality, specifications and performance requirements.


We have a professional and technical team, with an average working experience of more than 10 years in the generator industry. In the spirit of "keep improving", they actively collect and attract advanced technology and products at home and abroad, and constantly update the products, so that our diesel generators have been recognized by the majority of users.


If a customer can not find his supplier to support them when equipment has problem, after sales service is not guaranteed, which is a very helpless thing. While we have perfect after-sales service to support you to solve problem, it's not that you can't find us after you have a problem on your equipment. We will be with you and solve your problems with heart.

Export Case

So far, our diesel genset sold to Ethiopia, Venezuela, Singapore, Nigeria, Thailand, U.S.A etc. all over the world, both having good feedback from customers. 

Diesel generators

Specific Project Cases:



1. Do you have your own factory?

Yes, we have. Welcome to visit our factory.

2. What is the delivery time and do you have product in stock?

Delivery time depends on order quantity. Generally, within 10 days for open genset, 20 days for silent genset. We have some power capacities in stock, if need details, please contact us.

3. What is your warranty period?

Our warranty is 1 year or 1000running hours whichever comes first. But based on some special project, we can extended our warranty period.

4. Does your generator have global warranty?

Yes, We supply the warranty. Also most of our products like Cummins, Volvo, Perkins, Deutz, Doosan, Yuchai, Weichai etc. power generator enjoy the global warranty service. And the alternator we use like Stamford and marathon also enjoy the global warranty service, so you do not need to worry about the after-sales service.

5. What is your payment terms?

We can accept T/T 30% in advance, and the balance 70% shall be paid before shipment or L/C at sight. But based on some special project and special order, we can do something on payment item.

6. Do you provide OEM service?

Yes, we can put your company logo on our diesel genset, just tell us your requirements, then we will do it for you. 

Our Service

Before service

Our professional engineer will give you some consultation of technology and related planning before sale, such as selection of equipment, supporting facilities, the design of equipment room. We can also answer and solve the using problem you faced.


After sale service

1. Free guide to install and debugging

2. Free training and consult

3. Guiding how to protect your equipment

4. We will set up clients' document, tracking service, regular inspection, maintenance for life

5. We offers pure perennial spare parts and maintenance engineers will be ready to provide.

Dingbo Cloud on line service will help you to manage your equipment, save cost and improve efficiency.

  1. Installation performance is good. 

  2. With double row composite contact, horizontal pull-out mechanism micromotor energy storage and microelectronic control technology, the basically zero arcing(no arc clute)

  3. Use reliable mechanical interlock and elctric interlockm ensure higher security.

  4. Using a zero technology, and emergency can be forced to zero at the same time to cut off the two power supplies. 

  5. Has obvious on/off position indicator, padlock, and other functions. Insulate the power and the load reliably. With high reliability and more than 1000 times using life.

  6. Good electromagnetic compatibility, strong anti-interference ability, no interference.

  7. High automaticity.

  8. Switch has multiple input/output interface, easy to implement remote PLC control and system automation. Switch can work without any other controller. 

  9. Beautiful shape, small volume, light weight. The logic control board can control operation of the motor(inside the switch) using different logic to make sure the switch on its position.

BrandYangzhou Suyang Electric Co.,Ltd
Ith A1250A
Rated insulation voltage750V
Rated impulse withstand voltage(Uimp)12KV
Rated working voltage480V
Rated working current1250A
load propertyAC33IB
Rated connection capacity10 Ie
Rated analytical capacity8 Ie
Rated limited short circuit current100KA
Rated short time withstand current50KA
Conversion time≤1.3s
Control supply voltageStandard: AC 220V, Customizable: AC 110V, AC 380V, DC 12V, DC 24V

1250A ATS

Suitable for AC 660V and below, rated frequency 50Hz, whether it is common or not. 

It also can be used for 60Hz diesel generator.

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Contact Us

Mob.: +86 134 8102 4441

Tel.: +86 771 5805 269

Fax: +86 771 5805 259

E-mail: dingbo@dieselgeneratortech.com

Skype: +86 134 8102 4441

Add.: No.2, Gaohua Road, Zhengxin Science and Technology Park, Nanning, Guangxi, China.

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