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NDQ3H Series Automatic Transfer Switching Equipment (ATSE)
Updated:August 13,2020 12:16PM

Rated current: 16A 25A 32A 40A 50A 63A 80A 100A 125A 160A 180A 200A 225A 250A 315A 350A 400A 500A 630A 700A 800A 1000A、1250A 1600A、2000A、2500A、3150A 4000A、5000A; Rated working voltage Ue: 230VAC/400VAC; Number of poles have 2Poles 3Poles 4Poles is available; Rated limited short-circuit current Iq: from 32kA to 120 kA.
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Description of NDQ3H Series

The NDQ3H PC-grade automatic transfer switching equipment (ATSE) are applicable for sites with the AC voltage below 400V and the rated frequency of 50/60Hz. for Fire Protection of High-rise Civil Buildings, Code of Design on Building, Design Guidelines on Emergency Lighting and Code for Electrical Design of Civil Buildings, etc. This product mainly applies to the compulsory level I load which is widely used in important places that require the continuous power supply, such as fire protection, telecommunications, hospitals, hotels, urban rail transits, high-rise buildings, industrial assembly lines and TV stations. It adopts the network source, self-starting generator set and battery set as the main and standby power supplies.



Features of NDQ3H Series

  • PC grade conventional products are available with the two-segment and three-segment. With the adoption of the integrated design, it features simple and reliable structure as well as fast switching speed.
  • Using the PIC single chip as the control core, the intelligent controller is powerful and easy to expand with the strong anti-interference ability.
  • Reliable mechanical interlocking device and electric interlocking protection are provided between mechanisms so as to prevent the occurrence of simultaneous closing.
  • The product has a complete range and provides the two-segment and three-segment, simple, intelligent and other types so as to meet a variety of design applications.



Questions & Answers for NDQ3H Series

  • What are the two types of automatic transfer switches?
    There are two basic types of automatic transfer switches, circuit breaker and contactor. The circuit breaker type has two interlocked circuit breakers, so only one breaker can be closed at any anytime. The contactor type is a simpler design that is electrically operated and mechanically held.
  • How do automatic transfer switches work?
    How Does an Automatic Transfer Switch Work? An automatic transfer switch, or ATS switch, connects your standby generator to your home. ... When the transfer switch detects a power outage, it switches your home to generator power. Afterward, it detects when the power is restored and switches your home back to utility power.
  • What is Auto Transfer Switch?
    A transfer switch is an electrical switch that switches a load between two sources. ... An Automatic Transfer Switch (ATS) is often installed where a backup generator is located, so that the generator may provide temporary electrical power if the utility source fails.
  • Do I need a permit to install a generator transfer switch?
    Technically yes, you need a permit from the local authorities whenever you install any permanent additions to your house. Generator transfer switches are no exception. However, if you hire a certified electrician for the installation, they will usually be able to sort out the permits on your behalf.
  • Which is better transfer switch or interlock?
    Interlock switches are usually less sophisticated and therefore less expensive than automatic transfer switches. They require training and an understanding of the building's electrical system for safe use.
  • Can you run a generator without a transfer switch?
    It's not only less safe to run a generator without a transfer switch, but you'll limit the devices that your generator can power,” says Dave Trezza, who oversees generator testing for Consumer Reports.