Air Break Switch

Your Leading Air Break Switch Supplier

Baoding Sihedan Electric Technology Co.,Ltd is located at Baoding city Hebei Province China. It is a high-tech enterprise specializing in the design and production of switches. An air break switch is a type of electrical switch which uses air as an insulating medium to ensure safety by preventing arc formation. The air break switch interrupts the flow of electric current when it is required to do so. It is also used as a type of safety switch, in order to prevent electric shock and other accidents.

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Types of Air Break Switch

Single-Pole Air Break Switch

A single-pole air break switch controls electricity through a single conductor. This switch is typically used to isolate one phase of the electrical system. It is often used in low-load applications. It has a simple design and is easy to operate.

Gang-Operated Air Break Switch

A gang-operated air break switch is designed to control multiple conductors at once. These switches are mechanically linked. They open or close all conductors at the same time. Gang-operated switches are common in high-voltage networks. They isolate all three phases for safety and maintenance.

Technical Parameters of Air Break Switch

Parameter name	Unit	Technical requirement
Rated Voltage	kV	33
Rated continuous Current	A	630
Rated Frequency	Hz	50/60
Creepage distance	mm	≥1080
Rated short circuit withstand current	kA	25
Rated short circuit making current(peak)	kA	63
Rated withstand current(peak)	kA	63
Mechanism life	times	1000
Lightning impulse withstand level
Phase-Earth	kV	95
Across interupter	kV	110
1min Power frequency withstand voltage
Phase-Earth	kV	75
Across interupter	kV	80

Functions of Air Break Switch

● It is used where switching or isolating a circuit is required.
● These are generally used in HV electrical devices or connections between cables and transformers, transformers and conductors, power generation lines, etc.
● It provides overcurrent and short-circuit current protection.
● It is more reliable than ordinary switches used in HV devices or distribution networks.
● It is almost maintenance-free and easy to maintain.
● It provides stability to the network by isolating faulty lines in no time.
● Serves as a switching point in distribution networks for making or breaking connections between cables, transformers, and other high-voltage electrical devices.
● Enables the user to isolate a section of the overhead line without disrupting the remainder of the power transmission system.
● These switches can be employed in power generation lines as well.
● Air break switches are used to isolate critical points in certain power distribution systems.
● Protects against overcurrent and short circuit.

Environmental Conditions Suitable for Air Break Switch

Height above sea level	≤3000m
Air temperature	-40℃～+50℃
Maximum diurnal temperature difference	≤25℃
Relative humidity	Daily mean 95% monthly average 90%
Maximum wind speed	≤34m/s
Earthquake intensity	＜8 degree
Icing thickness	＜10mm
Thickness of snow	＜35mm
Irradiance	＜0.1W/cm2
Pollution grade	Ⅱ class
Installation site	No fire disaster, explosion danger, chemical corrosion and frequent strenuous vibration places

Usage of Air Break Switch

Circuit Isolation

Air break switches are used in power distribution systems to isolate specific sections of the network during maintenance, testing, or upgrades. This ensures that electricity does not flow into these parts while also minimizing potential hazards for maintenance crews.

Load Shedding

In situations where the demand for electricity exceeds supply, air break switches can be employed to shed loads selectively. This helps maintain overall balance across the power grid, reducing the possibility of large-scale blackouts.

Disconnecting Transformers

Air break switches are used to disconnect transformers from distribution networks when they need repairs, replacements, or testing without disrupting the rest of the network.

Manual Control

In some cases, operators may need manual intervention in their power systems. Air break switches allow technicians to control connections between circuits when necessary and troubleshoot issues without affecting operations.

Installation of Air Break Switch

Air break switches can be installed in two orientations:

Horizontal Installation

Common in overhead lines, horizontal switches provide a clear visual confirmation of their status.

Vertical Installation

Vertical switches are often used in confined spaces or specific pole-mounted installations.

Ordering Process

Buyer sends inquiry --> Buyer receives quotation --> Order confirmation --> Buyer sends deposit --> Seller prepares

After-Sales Service

Give a clear answer to the user's complaints within 24 hours.

If necessary, we send technicists to the user's site to solve the problem timely.

Return visit at regular intervals.

Establishing the user's record.

Long warranty period, and whole life service and support.

Providing the latest industrial information.

Payment Terms

1:	We are accepting T/T and L/C payment terms. And FOB, CIF, CFR.
2:	Sample order: 100% payment before shipment.
3:	Bulk order: 50% deposit balance before shipment.

FAQ

Q: What is the purpose of the air break switch?

A: Air break switches are critical in modern electrical systems. They ensure the smooth, safe, and efficient operation of transmission and distribution networks. An air break switch isolates a network section for maintenance or fault clearance. These switches use air to extinguish electrical arcs.

Q: What is the working principle of air break switch?

A: The air break switch working principle is; that this switch normally opens the circuit in the load. So, during the switch opening process, the arc gets generated is quenched in several ways by turning the contacts away from each other or by interrupting the supply.

Q: Can an Are air break switches safe?

A: Air break switches are an efficient, durable, and safe solution for controlling electrical devices in both every day and specialised applications. Use of air pressure to activate circuits makes them especially useful in environments where traditional electrical switches might be unsafe or impractical.

Q: Can an air break switch get wet?

A: The wall switch is best mounted off the surface area of a counter or sink (to avoid the wet environment), which can make them an inconvenience. If the switch were installed near the sink, exposure to water and other liquid, with the potential of a shock hazard!

Q: What is the difference between air break switch and circuit breaker?

A: Circuit breakers and air break switches have certain differences in voltage levels, for air switches, its voltage level is generally below 500V, while circuit breakers are above 220V, and the load capacity will be stronger.

Q: How to maintain air break switch?

A: Regular cleaning of internal components, contacts, insulation, and ventilation systems can help prevent these issues and ensure optimal performance. Another best practice for air break switch maintenance is lubrication of moving parts. Over time, moving parts within the air break switch can experience wear and tear due to normal operation.

Baoding Sihedan Electric Technology Co., Ltd. is well-known as one of the leading air break switch manufacturers and suppliers in China. Welcome to buy high quality air break switch at low price from our factory. Contact us for more discount information.

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