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Outdoor HV AC Circuit Breaker

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Your Professional Outdoor HV AC Circuit Breaker Supplier

 

 

Our goal is to become your true partner in the field of chassis truck for vcb in China. Shaanxi West Power Tongzhong Electrical Co., Ltd. is a leading manufacturer with over 20 years of experience, specializing in high quality vacuum circuit breakers, switchgears, and a wide range of electrical products. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

 

 
 
Why Choose Us
 

Our R&D: Our R&D team consists of senior technical experts with decades of experience in the design and manufacture of high and low voltage electrical equipment. Their expertise, combined with our advanced facilities, enables us to always lead industry trends and continuously optimize our product portfolio.

 

Quality control: We are able to accurately and efficiently produce a wide range of high-quality electrical products that comply with GB 1984-2024 and GB/T11022-2020 standards to ensure the highest quality.

 

Customization requirements: We know that our customers' needs are different, so each product can be designed according to the specific needs of the customer.

 

Our services: In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

 

Advantages of Outdoor HV AC Circuit Breaker

 
 
01
 

Superior breaking capacity

When the excitation current is cut, the overvoltage is less than 2 times the operating voltage, and when the charging current is cut, there is no re-breakdown and re-ignition phenomenon.

 
02
 

Reliable insulation

The characteristics of SF6 gas do not change over time, and at the same time, the insulating parts and conductive parts in the gas are protected from oxidation, ensuring the temperature operation of the product.

LW25-126 Outdoor High Voltage Porcelain SF6 Circuit Breaker

 

Specification of Outdoor HV AC Circuit Breaker

 

 

No.

Name

Unit

Data

1

Rated Voltage

KV

72.5

2

Rated Frequency

Hz

50

3

Rated Current

A

3150/4000

4

Rated Short-Circuit Breaking Current

KA

31.5

5

Rated Short-Circuit Making Current (Peak)

KA

80

6

Rated Peak Withstand Current

KA

80

7

Rated Duration of Short-Circuit

S

4

8

 

Rated Power Frequency Withstand Voltage (Dry Test)

KV

160+42(Across the contact gaps)

/

160(To Ground)

9

Creepage Distance Ratio

CM/kV

3.1

10

 

Rated Power Frequency Withstand Voltage (Wet Test)

KV

160+42(Across the contact gaps)

/

160(To Ground)

11

 

Rated Lightning Impulse Withstand Voltage

KV

410(Across the contact gaps)

/

350(To Ground)

12

5-Minute Power Frequency Withstand Voltage

kV

1.3×72.5√3

13

Closing Time

Ms

≤150

14

Opening Time

Ms

≤30

15

Breaking Time

Ms

≤60

16

Making Time

Ms

40-60

17

No-Simultaneity of Opening Operations of 3-Phase

Ms

≤2

18

No-Simultaneity of Closing Operations of 3-Phase

KA

≤4

19

Rated Reclosing Operation

  

O-0.3s-CO-180s-CO

20

Rated SF6 Gas Pressure

MPa

0.5, 0.4

21

SF6 Gas Alarm/Locking Pressure

MPa

0.45/0.40, 0.35/0.3

22

SF6 Gas Annual Leakage Rate

%

≤0.5

23

Number of Interrupting Chambers per Pole

  

1

24

Mechanical Endurance

Times

3000

25

Terminal Horizontal Longitudinal Pulling Force

N

790

26

Terminal Horizontal Transverse Pulling Force

N

750

27

Terminal Vertical Pulling Force

N

750

28

Main Circuit Resistance

  

≤50

29

Operating Mechanism

  

Spring Mechanism

30

SF6 Gas Filling Mass

Kg

 

 

LW9-72.5 Outdoor High Voltage Porcelain SF6 Circuit Breaker

 

Features of Outdoor HV AC Circuit Breaker

When interrupting magnetizing current, the overvoltage is less than twice the operating voltage. Additionally, when interrupting charging current, there is no re-striking or re-ignition occurs.

 

The properties of SF6 gas remain stable over time, protecting the insulating and conductive components from oxidation and ensuring stable temperature operation.

 

The circuit breaker features a modular structure with advanced technology, reduced components, and excellent mechanical performance, and requires almost no maintenance.

 

Application of Outdoor HV AC Circuit Breaker

 

 

If a wire becomes damaged or shorts out, the circuit breaker will instantly trip, preventing a potentially dangerous situation. Outdoor units, like the condenser, often have their own dedicated circuit breaker, sometimes located in a separate outdoor box. Having a dedicated circuit breaker allows for safe maintenance of the HVAC unit. It can be switched off to isolate the unit from the electrical supply, allowing technicians to work safely.

 

Components of Outdoor HV AC Circuit Breaker
 
 

Enclosure

The protective housing that shields the breaker from weather and debris.

 
 
 

Breaker switch or pull-out handle

The mechanism that enables the disconnection and reconnection of power.

 
 

Fuses (in some models)

Components that blow or melt to interrupt the electrical circuit in case of a fault.

 

 

Packing and Shipping of Outdoor HV AC Circuit Breaker

 

 

Packing

Box

Shipping

Shipped by road, sea, rail

 

FAQ

 

Q: Is there a breaker on my outside AC unit?

A: Yes, there is generally a breaker on the outside AC unit, and usually another one inside. These breakers act as safety switches, protecting the AC unit from overloads and power surges by cutting off the power.

Q: How do I stop my AC from tripping the breaker outside?

A: If your air conditioner's circuit breaker is tripping, the first thing you should check is the filter and install a new AC filter if needed.

Q: How do I turn off power to an outside AC unit?

A: To turn off power to an outside AC unit, locate the disconnect switch, usually near the unit, and flip it to the "off" position. This switch is often found under a flip-up cap. Alternatively, you can turn off the circuit breaker dedicated to the AC unit in your electrical panel.

Q: Where is the AC circuit breaker located?

A: The AC circuit breaker is typically located within your home's main electrical panel, often found in the garage, basement, or a utility room.

Q: Why does my outside breaker keep tripping?

A: An outside breaker tripping frequently can be due to several reasons, including circuit overload, short circuits, or a faulty breaker. It's important to troubleshoot the issue by first identifying which devices are connected to that circuit and then testing them individually.

Q: Is it safe to turn off an AC circuit breaker?

A: Yes, it is generally safe to turn off the circuit breaker for your air conditioner. It's a standard safety measure for maintenance, repairs, or when the unit is not in use for extended periods.

We're professional outdoor hv ac circuit breaker manufacturers and suppliers in China, specialized in providing high quality products and service. If you're going to buy customized outdoor hv ac circuit breaker, welcome to get more information from our factory.

LW9 72 5 Outdoor High Voltage Porcelain SF6 Circuit Breaker, outdoor hv ac circuit breaker, high voltage switch equipment

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