PC Class Automatic Transfer Switching Equipment Disconnector Power Supply 3P 4P Up To 1600A

NH40SZ Automatic Changeover Switch disconnector

Integrates electrical and mechanical interlocking systems to guarantee safe transfer operation.

It is applicable for the three-phase four-wire power supply system of AC 50Hz, rated voltage AC 380V, rated current up to 3150A.

It can realize automatic and manual changeover between normal and back up power supply power, and stop power supplying to load when changeover process of power supply is carried out.

The switch is applicable for two circuits power supply and in the condition which requires high quality power supply.

Standard: IEC 60947-6-1

Control characteristics:

There are two types of switch products, three-pole and four-pole (three poles + switchable neutral pole). Four control types (common type, I, Ⅱ,Ⅲ),usually it is common type.

Control characteristics of common type switch:

1. This switch applies to the automatic change and automatic recovery of main power supply-standby power supply (including manual oil generator; Note: Manual oil generator does not have to be used with type Ⅲ switches) systems. Power supply I precedes. When power supply I is normal, it is switched on; when power supply I fails and power supply Ⅱ is normal, the switch changes to power supply ; when power supply I resumes, the switch automatically changes to power supply I.

Control characteristics of type I switch:

a. This switch applies to the mutual standby of mains supply systems. When the switch is in the “0” position, power supply I precedes. When power supply I fails and power supply Ⅱ is normal, the switch changes to power supply Ⅱ; when power supply Ⅱ is on and power supply I resumes, the switch does not automatically change to power supply I, it will change to power supply I only when power supply II fails. The main power supply changes to the standby power supply (the delay continuously adjustable between 1～999s), the standby power supply changes to the main power supply (the delay continuously adjustble between 1～999s).

b. Phase loss detection protection function, overvoltage, undervoltage protection fuctions.

Control characteristics of type II switch:

a. This switch applies to the automatic change and automatic recovery of mains supply-mains supply systems. Power supply I precedes. When power supply I is normal, it is switched on; when power supply I fails and power supply II is normal, the switch changes to power supply II; when power supply I resumes, the switch automatically changes to power supply I. The main power supply changes to the standby power supply (the delay continuously adjustable between 1～999s), the standby power supply changes to the main power supply (the delay continuously adjustable between 1～999s).

b. Three-phase overvoltage, undervoltage and phase loss detection protection functions.

Control characteristics of type III switch:

a. This switch applies to the mutual standby or automatic change and automatic recovery of mains supply-oil generator (automatic oil generator with signals) systems. Power supply I (the mains supply) precedes. When power supply I fails, the switch gives a signal to start the oil generator. The oil generator has warm-up delay (continuously adjustable between 0～180s) function. After the oil generator has started, the switch changes to power supply II (the oil generator). When power supply I resumes, the switch automatically changes to power supply I, the oil generator automatically stops after a cooling delay (continuously adjustable between 0～180s).

b. Three-phase overvoltage and undervoltage protection functions for mains supply and oil generator.

Type I, type II and type III switches have:

1) Automatic, remote and manual control functions

2) A 0.5s delay of the detection signal, to prevent misoperation.

3) A remote control “0” position in automatic state.

4) A key switch for the selection of operation mode

Wuxi Fenigal Science and Technology Co. ,Ltd. is a high-tech enterprise specialized in reseach and developement of products on latest Electrical Distribution and Industrial Control & Automation, as well as special Lighting technology and products on Film & Media, Event, Industrial and Domestic use etc.  

Through years of effort, we are aiming to build a large range of lineup coverage and service capability for the sectors we serve. We promise to provide our clients best products with most reasonable prices in most cases of no M.O.Q. (Minimum Order Quantity) requirement. Our team work with from raw materials, parts, elements, design and developement, engineering to purchase, assembly, test, logistics, deliver and after sales service, in short, to earn the client's satisfaction and create customer values.

Each year, we export many special products to panel builders, system integrators, event planners and event management companies, project owners, engineers or their teamsin many corners of the world.

Working together with us, you can find blow benefits.

Our Advantages

1) We are manufacturer and have factory facility for many of our unique products

2) Integrating flexible resources that could enable our fast response to client's demand on regular or customized 

3) No M.O.Q. and very low M.O.Q.

4) Leatime period is short 1-3 days or 5-7 days normally, special order or bulk order to be negotiated

5) Private label or OEM business is provided

6) We have plenty of channels that enbles us to supply world best brands of authnentic materials originally made in China, quicker and efficient than anyone else.

7) We are able to deliver to you through international courier service by Air, like FedEx, DHL, TNT, UPS etc. to most parts of the world very soon in best condition. (Bulk order is still suggested to be delivered by Sea)

8) Our in-depth expertise and know-how of the industries and product knowledge stored in our mind and team work.

OUR MISSION

To be a powerful company and efficient supplier of first class electrical distribution and control and featured lighting products and solutions.

OUR VISION

To be a first class and trustworthy supplier in both civil and industrial market like commercials, event, green building, 

Electrical Division

Not only do we manufacture a good range of electrical products like lighting distribution boxes & enclosures, circuit protection, electrical control and automation products, but also have we established solid partnership with OEM factories located in Shanghai, Zhejiang, Jiangsu, Guangdong provinces which enable us to provide from element to products and project solution.  

Our electrical division covers below core product sectors - distribution boxes & enclosure system, circuit protection devices, automatic transfer switches, industrial electrical control elements like contactors, relays, sensors, switches, fuses. We are also supplying lineup from Schneider Electric, ABB, SIEMENS, LS etc. made in China, as well as top famous Chinese national electrical brands. 

Lighting Division

Over 90% of lighting products are tailored products for our clients. We are the best manufacturer for unique balloon lighting products inn China.

We mainly serve for 4 big market segment - Film & Media, Event, Industrial and Safety and Domestic featured. 

Our lighting products concerns with LED, HID and Tungsten Halogen, from components, parts, electricals, control to ready-made products.

Our lighting division covers below core product sectors - cinematography lighting, studio lighting, photography lighting, safety lighting, industrial general purpose lighting, special industrial lighting, event lighting, stage lighting, architectural, landscape, indoor, outdoor.

Our Philosophy

No pains, no gains, while only those responsible ones achieved further and final.

Hope to find a chance being a friend or partner of you or your business soon!