Box Type Fixed AC Metal Enclosed Switch Equipment

Box type fixed AC metal enclosed switch equipment, is a kind of intelligent, environmental protection, full working condition equipment, with high reliable operation safety, It is one of the most commonly used devices in urban ring networks. Use in electrical power system with three-phase frequency 50/60 Hz, rated voltage of 12kV. It is used for receiving and distributing electric energy in ring and segmented power supply systems. With full insulation, long life, maintenance free, small space, safe and reliable, not affected by the environment and other characteristics.

  • Item NO.:

    Box Type Fixed
  • Order(MOQ):

  • Payment:

    T/T 30%,LC at sight
  • Product Origin:

  • Shipping Port:

  • Lead Time:

    30 days
  • Product Detail

1. With a fully enclosed structure, all one-time charged bodies are sealed in the same insulated air chamber welded from stainless steel, high Reliability and personal safety,with IP67 protection.

2. Effective protection, remote control, metering and monitoring of circuits, and support the automation of power distribution systems.

3. Achieve distribution line loss collection and management.

4. Solve the compatibility and extensibility of primary and secondary interfaces.

5. Improve the standardization and integration level of primary and secondary power distribution equipment

6. Improve the operation level, operation and maintenance quality and efficiency of distribution equipment.

Box type switchgear can be installed in humid, dust pollution areas, especially suitable for mines, box substation and any place where surface flashes are easily caused by air pollution. Widely used in industrial and civil ring network and terminal power supply.



Type of ring main unit

Breaker cabinet

Load switch cabinet

Combination unit cabinet


Rated Voltage





Rated frequency

50/60 Hz

50/60 Hz

50/60 Hz


Rated current





Rated short-time power frequency withstand voltage

Phase to phaseto earth1min

42 kV

42 kV

42 kV

Isolating distance1min

48 kV

48 kV

48 kV

Secondary circuit to earth1min

2 kV

2 kV

2 kV


Rated lightning impulse withstand voltage

Phase to phaseto earth1min

75 kV

75 kV

75 kV

Isolating distance1min

85 kV

85 kV

85 kV


Main circuit resistance





Rated peak withstand current



Rated short-circuit making currentpeak




Remote control function, remote communication function, telemetry function




1. Altitude: ≤ 4000m (the equipment is fully insulated and sealed, can be used in high-altitude areas. When the equipment operates at high altitude above 1000m, please make special note so that we can adjust the pressure during manufacturing).

2. Surrounding temperature: -25 ~ +40℃ (the highest average daily temperature does not exceed 35℃).

3. Relative humidity: the daily average is no more than 95% and the monthly average is no more than 90%.

4. Wind speed: no more than 35m/s.

5. Earthquake intensity: 8 degrees.

6. the pollution level: 3 level.

7. Installation site: It shall be installed in a place without fire, explosion or violent vibration, good ventilation and corrosive gas.

8. Ground slope: no more than 3°.

Note: The working environment conditions are different from the above, please consult with the manufacturer.

Q: Are you the box type switchgear manufacturer or trader?

A: We are both manufacturer & trader. We have our own manufacturer named TIANYI TONGYI ELECTRIC CO.,LTD, who have 27 years experience in electric industry. It covers an totally area of 117,000 m2 with 300 employees, also is a qualified supplier of China National Nuclear Corporation(CNNC) and main supplier for State Grid & China Southern Power Grid.

Q: What is your after-sales service?

A: We always provide free online service and technical support within 24 hours. 18 months warranty for customers.

Q: What is your delivery time?

A: Normally 25~35days. It depends on the order quantity and season. We have very strong capacity to produce top quality products, please inquiry us if you have any questions.

Q: What is the quality warranty time?

A: We have quality certificate CCC, CQC, ISO9001, CE ... Meanwhile, we can provide 18 months warranty for our products. Free online service and technical support within 24 hours is always provided to our customers.

Q: Do you accept ODM and OEM box type switchgear?

A: Yes. We have professional R & D teams to update and develop the latest technology. We also can support ODM or OEM, please send us details drawing to discuss.

Q: What is your payment terms?

A: Generally there are two payment terms:

a) 30% advance payment via T/T as a deposit, balance 70% against the shipping documents

b) Irrevocable L/C at sight

Q: If I want to visit you, how to go?

A: Our factory is located in Luoyuan County, Fuzhou City. Details address is Songshan Area, Taiwan Investment Zone, Luoyuan County, Fuzhou City, Fujian Province,China.

a) The nearest airport is Fuzhou Airport, if you come by air, please arrive in Fuzhou Airport, it takes 1 hour from the airport to our factory

b) The nearest train station is Luoyuan Station, if you come by train, please arrive in Luoyuan Station, it takes only 5 minutes to our factory.

Anyway, please contact us in advance, we will send the car to the airport or train station to pick you up.Sincerely welcome you to come and visit us.

Q: Do you need agents?

A: Yes, we welcome you to be a partner. Welcome to contact us for more information.

Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
# Related Products
High voltage switchgear manufacturer
KYN44-12 High Voltage Switchgear
KYN44-12 type armored removable indoor AC metal-enclosed switchgear and control equipment are suitable for three-phase AC 50Hz/60Hz, rated voltage 12kV and below single bus and single bus section system, as receiving and distributing electric energy to control, protect, monitor and measure power circuits.
SF6 Ring Main Unit manufacturer
Fit(XGN86)-12 SF6 Ring Main Unit
Fit(XGN86)-12 SF6 ring main unit use SF6 as the insulating medium, a fully insulated and fully enclosed ring main unit. All high-voltage charged parts are fully insulated and sealed. From the outside of the switch cabinet, the safety performance is higher, with compact structure, small size, maintenance-free, not affected by high altitude, pollution, small animals and chemical substances and other external environment. Strong insulation performance and arc extinguishing ability, with reliable structure and excellent performance. Also known as SF6 inflatable cabinet, C-GIS and so on.
High voltage switchgear manufacturer
KYN44A-40.5 high voltage switchgear
KYN44A-40.5 armored removable AC metal-enclosed switchgear is suitable for three-phase AC 50Hz/60Hz, 40.5kV single bus and single bus segmented power system, mainly used in power plants, substations, industrial and mining enterprises, high-rise buildings, etc. It is used for receiving and distributing 35kV network electric energy in power transformation and distribution, and controls, protects and monitors the circuit. It meets the requirements of IEC60298, GB3906, DL404 and other standards, and has a complete "five prevention" function.
Custom electrical switchgear cabinet,High voltage electric switchgear
Metal-enclosed Switchgear KYN44-12
Metal-enclosed Switchgear KYN44-12 comply with the international standard IEC62271-200, Chinese National Standard GB3906 and Electric Power Industry standard DL/T404 and other relevant standards.
arc resistant 10kv RMU
SF6 Arc Resistant 10kV RMU
SF6 Arc Resistant 10kv RMU can be equipped with SF6 ring main unit, environmental gas (N2) ring main unit, solid insulation ring main unit, and atmospheric air ring main unit. Automatic laser welding and helium leak detection equipment are used to ensure that the gas cabinet protection level reaches IP67.
Fit-Series GIS 12kV Outdoor
Fit-Series GIS 12kV Outdoor are widely used in urban ring network power supply systems due to their small space occupation, long life, maintenance-free, safe and reliable characteristics.
control and switchgear
Green Outdoor Gas Insulated SF6 Switchgear
Green Outdoor Gas Insulated SF6uses sulfur hexafluoride as the insulating medium, and is fully insulated and fully enclosed in a common box type. All high-voltage live parts are fully insulated and sealed, and the safety performance is higher from the outside of the switch cabinet. It has a compact structure, small size, maintenance-free, and is not affected by high altitude, pollution, small animals, chemical substances and other external environments.
11kv 33kv electrical switchgear manufacturer
Metal clad switchgear 11kv 33kv electrical switchgear
This KYN44A type switchgear cabinet can be designed as 1) Incoming cabinet 2) Feeder cabinet 3) Voltage transformer cabinet (PT cabinet) 4) Sectional isolation cabinet 5) Sectional circuit breaker cabinet 6) Station changing cabinet
Leave a message
Leave A Message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.