Indoor High-Voltage Compressed Gas-Insulated Load Switch

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: FKN12-12
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: SF6
• Installation: Fixed
• Structure: ACB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: ISO9001-2000, CE, CB, CCC
• Transport Package: Export Cartons
• Specification: Customizable
• Trademark: TAILI/OEM
• Origin: Wenzhou, China
• Production Capacity: 3000units/Month

Product Description

Indoor high-voltage compressed gas load switch

Product Overview
The FKN12-12 is an indoor high-voltage gas-insulated load switch designed for 12kV three-phase AC power systems, ideal for power control and protection in industrial and mining enterprises, substations, and similar installations.

Product Features:
1.Core Functions

• Safely switches load currents, closed-loop currents, no-load transformers, and cable charging currents, with short-circuit current closing capability.
• Equipped with an earthing switch to withstand short-circuit current impacts, enhancing system safety.

2.Structural Advantages

• Compact gas-insulated design with high protection grade, adaptable to harsh environments (e.g., humidity, contamination).
• Modular construction compatible with fuse combinations (FKRN12-12 type) for rapid short-circuit interruption and equipment protection.

3.Safety & Reliability

• Excellent insulation: 75kV lightning impulse withstand voltage and 42kV power frequency withstand voltage (1 minute).
• 10,000-operation mechanical lifespan with stable performance and minimal maintenance.

4.Applications

• Ideal for ring main power supply, compact substations, industrial power distribution, and scenarios requiring frequent operations.

5.Customized Solutions

• Tailored to client requirements: Customization options include rated current adjustment, operating power specifications (AC/DC voltage), and installation configurations.
• Extended capabilities: Integration of intelligent monitoring interfaces or additional protective modules based on specific operational needs.

Standard Specification
(It can be customized according to customer's local demand!)

1, Technical parameter table:

project	unit	parameter
		FZN21	FZRN21
Rated voltage	KV	12	12
Rated current	A	630	125
Rated short-circuit colsing current	KA	50	50
Rated short-circuit breaking current(combination electrical appliance)	KA	-	31.5
Rated active load breaking current	A	630	630
4S thermally stable current	KA	20	-
Dynamically stabilize the current	KA	50	-
1min power frequency withstand voltage	KA	42(Break 48)	42(Break 48)
Lightning impulse withstand voltage	KA	75(break 85)	75(break 85)
Mechanical life	times	10000	10000
Rated transfer current (combiner)	A	-	3150
The motor operates the supply voltage	V	AC and DC 110,220	AC and DC 110,220

2.Outline and installation size:

3.Packing and delivery:

  

More Product:
 https://tldq5978.en.made-in-china.com
 

Ex-factory Quality Assurance

1. Routine test:Measurement of winding resistance,Measurement of voltage ratio,Check of vector group,Measurement of impedance voltage and load loss,Measurement of no - load loss and current,Separate-source voltage withstand test,Induced overvoltage withstand test,Dimension checking.
2. Type tests:Lighting impulse test,Temperature rise test.
3. Special tests:The company is accelerating the cultivation and development of productivity, and creating high-level intelligent production.

Know More About Our Company
 

Define-TAILI
Total Solution is how we define "TAILI". From design & customization, engineering, manufacturing, installation, to after - sale service. TAILI provides a Total Solution to our customers, helping and supporting them to gain a competitive advantage in their market.
    TAILI, founded in 1988,is one of the largest and most respected manufacturers of MV power distribution products in Wenzhou, China, the "Electric Industry Center" of China. We have factories for manufacturing, research &development, and distribution of products: Transformers, Indoor&outdoor switches, Switchgears, Power substations, and electric components for transformers and switchgears.
   Our mission at TAILI is to provide the highest - quality products at the best possible price. And by doing so, to provide an unmatched customer experience and actively establish long-term cooperative relationships with our new and old customers.

Our Advantages
Design Ability:Our design team can combine the needs of customers from East Europe, Africa, South America, the Middle East, Southeast Asia and other regions to customize transformers for different local market demands. As a Chinese manufacturer with more than 25 years' experience, we can produce transformers with European quality at a very competitive price, and perfectly replace imported products from Europe, so that users can use high-quality power products at the lowest cost to gain more advantages in their market.
Efficient Service: With 15 years of experience in the electrical line, we are committed to providing comprehensive technical support, design and customized solutions for our partners. And provide timely service for each step within 24 hours from design,production, logistics installation, etc..,to ensure clients an efficient and smooth operation of the projects! Partners' recognition is the motivation and encouragement for us. We attach importance and pursue giving one-stop service!
Certifications


Attention
1. The payment term: We accept TT,30% deposit and 70% balance against copy of BL.
2. The delivery time: Usually it will take about 15-20 days.
3. The standard of package: Usually use strong plywood cases for protection.
4. The material of transformer: We have two types, one is with copper and another one is with aluminum. It depends on your requirement. In fact, there are differences between the two when they work well. Except for the long - life factor, copper is better and also has a higher price.
5. The logo: If you have a good quantity, it is absolutely no problem to do OEM.
6. Our market: Our products are popular in Indonesia, the Philippines, Russia, the USA, the Middle East and so on. Some of them are our regular customers and some are in the process of development. We hope you can join us and make mutual benefits from our cooperation.
7. Warranty: within 12 months since BL date.

FAQ
Q1: Are you a manufacture or trading company?
A1: Yes, we are a manufacturer dedicated to designing customized products according to different country standards and producing a wide range of high - quality transformers, switchgears, and power substations. Meanwhile, we can also provide relevant accessories and components with guaranteed quality from our branch factories.  We improve the design to make our products more competitive in the market while ensuring better quality for long - term performance.
Q2: How does your factory do regarding quality control and after-sales support?
A2: All the products will be 100% checked and tested before delivery. We also have an inspection team to make videos with customers online or via email. All our products comply with strict tests, and easy maintenance is guaranteed. We also offer online after-sale service in case of any further problems.
Q3: When can I get the price?
A3: Usually we quote within 1 hour after we get your inquiry. For customized products that need special design, we will quote within 12 hours with detailed specifications for confirmation.
Q4: Can you manage the delivery directly to our country with DIP term?
A4: Yes, we have our own Logistics company that helps to find a better solution for delivery and that makes the delivery time more punctual and at a lower cost.
Q5: Can I get guarantee of products after delivery?
A5: Yes, every product is 2-3 years' quality - warranted under customers' correct use of the products.
Q6. Do you have any Certificate?
A6: Yes. Each of our products has CE, 3C and CQC certificates. If you need any other certificates, we can help you to apply for them.
Q7: How can I pay you?
A7: The payment by T/T and L/C is acceptable.