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KYN28A-12(Z) (NB) AC Metal-enclosed Switchgear Panel, Withdrawable Type

KYN28A-12(Z) (NB) AC Metal-enclosed Switchgear Panel, Withdrawable Type
KYN28A-12(Z) (NB) AC Metal-enclosed Switchgear Panel, Withdrawable Type
  • Stock: In Stock
  • Model: KYN28A-12(Z)(NB)
This product is customized according to User Requirement , the above price is for reference, please contact us.



Ratings: system voltage 3.612kV, rated current up to 3150A, AC 50/60Hz.

Application: applicable for power receiving and distribution and for control, protection and measurement of circuit.

Standards: IEC 62271-200

Type Designation

Working Condition

Ambient air temperature:-15℃+40℃(-25℃+45℃ available as customized products)

Altitude: ≤4000m

Relative humidity:

Daily average ≤95%, daily average water vapor pressure ≤2.2kPaMonthly average ≤90%, monthly average water vapor pressure ≤1.8kPa

Earthquake intensity: ≤ magnitude 8

Applicable in places without corrosive, flammable gas and steam and places no regular severe shock.

※ Note: Customized products available.


KYN28A-12(Z)(NB) available.

Reliable "anti-5" mechanical latch, convenient and safe maintenance,

Both VCB of ZN63□ -12 developed by our company and VD4, VB2 AND 3AH manufactured by other companies around the world can be matched with the switchgear.

Main Technical Parameter

Item Unit Data
Rated voltage kV 3.6,7.2, 12
Rated frequency Hz 50
Rated current of circuit breaker A 630,1250,1600,2000,2500,3150,4000,5000
Rated current of switchgear A 630,1250,1600,2000,2500,3150,4000,5000
Rated short time withstand current (4s) kA 16,20,25,31.5, 40,50
Rated withstand current (peak) kA 40, 50, 63,80,100,125
Rated short circuit breaking current kA 16, 20,25, 31.5,40,50
Rated short circuit closing current (peak)  kA 40,50,63,80,100,125
Rated insulation level 1min power frequency withstand voltage Beween poles,pole to eath kV 24,32,42
Beween open contacts kV 24,32,48
Lightning impulse withstand voltage(peak)  Beween poles,pole to eath kV 40,60,75
Beween open contacts kV 46,70,85
Protection level Shell: IP4X; IP2X when the CPT and CB doors are open.

※Note: 1. The short circuit capacity of the current transformer should be separately considered.

2. See technical parameters of ZN63A-12 in related catalogues of our company.


The switchgear is composed of panel body and middle-mounted removable part.

The panel body is divided into four separate compartments.

Overhead incoming and outgoing feeder, cable incoming and outgoing feeder, and combining schemes. Installation and maintenance can be operated at the front of the switchgear, so it can be double arranged back to back and can be installed against the wall, which improves the product's safety, flexibility and saves space

KYN28A-12(Z)(NB) Switchgear Panel


Rated current ≤5000A, altitude ≤1000m.

Switchgear for rated current 4000A~5000A;layout dimension 1000 X 1550(1660) X 2300

(flat top switchgeaer)


Ordering Information

Please specify the following information when ordering:

Main circuit program number and single line system diagram, allocation diagram and layout diagram should be supplied.

Main circuit diagram, busbar bar diagram for main circuit, allocation diagram should be supplied.

Secondary wiring diagram and terminals allocation diagram should be supplied.

Electrical equipments list.

Span an height dimension should be supplied if bus bridge needed.

Spare parts and their quantity.

Customized products are available.

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Quality Assurance Period (QAP) Explanation

1.    The Quality Assurance Period (QAP) is an important aspect of our commitment to ensuring the quality and reliability of our products. We understand that customers rely on our goods to function properly and meet their expectations. To demonstrate our confidence in our offerings, we provide a warranty period during which we take responsibility for any quality issues that may arise.
2.    The length of the warranty period varies depending on the type of product. Generally, for consumable components subject to wear and tear, such as abrasion parts, the warranty period is three months. For smaller components, the warranty period is typically extended to six months. As for major equipment and machinery, we offer a one-year warranty period.
3.    We also recognize that each customer's requirements may differ, and we are open to negotiation regarding the warranty period. If the buyer requests a specific warranty duration that differs from our standard policy, we are willing to discuss and accommodate their needs accordingly.
4.    During the warranty period, we take full responsibility for any quality-related issues that arise. If a product is found to be defective or malfunctions due to manufacturing or material faults, we are committed to providing a resolution. This includes either replacing the faulty component or conducting necessary repairs to restore the product to its intended functionality. Our aim is to minimize any inconvenience caused to our customers and ensure their satisfaction.
5.    It is important to note that the warranty does not cover damages resulting from improper use, mishandling, or normal wear and tear. Additionally, if any modifications or repairs are carried out by unauthorized personnel during the warranty period, the warranty may become void.
6.    At our company, customer satisfaction is our top priority. We strive to provide high-quality products that meet and exceed expectations. The Quality Assurance Period serves as a testament to our commitment to delivering reliable solutions and ensuring that our customers have peace of mind when choosing our products.


1.    We offer various trade methods, including EXW, FOB, CIF, DDU, DDP, etc., allowing customers to choose the most suitable option based on their requirements.
2.    We consider the proximity to the factory where the goods are located when selecting the appropriate port of departure.
Customers can provide the destination port where the consignee is located or choose a designated port for delivery.
3.    Our transportation methods encompass a wide range of options, including waterway transportation, air transportation, and courier services such as DHL, FedEx, EMS, UPS, TNT, etc.
For waterway transportation, we work with reputable shipping companies such as APL, CMA, CNC, COSCO, EMC, EVERGREEN, HMM, KMTC, MCC, MSC, MSK, ONE, SITC, YML, etc.
Air transportation is available through airlines such as (Air China): CA; (China Southern Airlines): CZ; (China Eastern Airlines): MU; (Garuda Indonesia): GA; (Cathay Pacific Airways): CX; (Cathay Dragon): KA; (Korean Air): (Japan Airlines): JL;  (Singapore Airlines): SQ; (Thai Airways International): TG, and more.
4.    The transportation time will vary depending on the destination and the chosen transportation method. We will communicate and confirm the estimated time of arrival with the customer prior to shipping.
5.    Shipping costs are influenced by factors such as transportation method, weight, size, and destination. We provide shipping cost estimation services to assist customers in budgeting.
6.    Once the goods are shipped, we offer order tracking services to provide customers with detailed information about the whereabouts of their shipment. Additionally, based on the selected trade method, we can arrange cargo insurance to provide compensation in the event of loss or damage during transportation.
7.    The specific transportation arrangements mentioned above will be coordinated by dedicated personnel, taking into account the actual situation and policies. We strive to tailor the optimal and most cost-effective shipping plan based on the information provided by the customer.

Please note that we are committed to ensuring the smooth transportation of goods and will work closely with customers to address any specific requirements or concerns they may have regarding transportation.