Your Professional Earthing Switch Supplier
Our goal is to become your true partner in the field of earthing switch. Granso produces a broad, tailored, comprehensive range of metal parts. 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.
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11kv Earth SwitchThe 11kv earth switch JN15-12/31.5 is a specific model of high-voltage grounding switch designed for indoor installation in 12kV-rated electrical systems. Its primary function is to provide a...view more
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Earth Switch in SwitchgearThe earth switch in switchgear JN22-40.5/31.5 is a specific indoor high-voltage grounding switch designed for use in 40.5kV-rated electrical systems. Its core function is to provide a reliable,...view more
Why Choose Us

Our team:
We have a professional team of over 200 employees, including over 25 professional technicians.
Quality control:
We rigorously control every process, ensuring our products comply with relevant standards such as GB7251.1, GBT/23359, and JB/T9661.
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.
Advantage of Earthing Switch
High safety:
The earth switch can effectively connect the circuit to the ground wire. When leakage or failure occurs in the circuit, the current can be directed to the ground in time to avoid harm to personal safety.
01
Protection equipment:
The earth switch can provide protection for electrical equipment. When the voltage of the equipment is too high or overloaded, the grounding switch will automatically cut off the circuit to avoid equipment damage.
02
Reduce electrical interference:
The earth switch can effectively reduce electrical interference, such as overvoltage, electromagnetic wave interference, etc., and provide a good electrical environment.
03
Energy saving and environmental protection:
The use of earth switch can avoid current leakage and reduce the waste of electric energy, thereby achieving the purpose of energy saving and environmental protection.
04
Easy maintenance:
Earth switch usually have the characteristics of high reliability, long life, easy operation, etc., and maintenance and management are relatively simple.
05
Product Parameters
| No. | Item | Data | |
| 1 | Rated Current | 24kA | |
| 2 | Rated short-time withstand current | 31.5kA | |
| 3 | Rated short-time making current | 80kA | |
| 4 | Rated peak withstand current | 80kA | |
| 5 | Rated short-circuit duration | 4s | |
| 6 | Rated insulation level | 1min power frequency withstand voltage | 65kV |
| Lightning impulse voltage | 125kV | ||
| 7 | Mechanical life | 2000times | |
Types of Earthing Switch
Indoor high voltage grounding switch: It is suitable for indoor 3-12kv three-phase ac 50(60) hz power systems to be used in conjunction with various types of high-voltage switch cabinets. It can also be used as grounding for high-voltage electrical equipment maintenance.
An indoor high voltage electric grounding switch: Consists of a motor, a driving device, an electric air control device, as well as the main shaft of the grounding switch.
Fes fast earthing switch: The earthing switch is divided into two types: The earthing switch for maintenance (es) and the earthing switch for fault fast closing earthing switch(fes).
Application of Earthing Switch
Switchgear panels:
Earthing switches are prominently used in switchgear panels as they help in controlling and protecting circuits. Well, the switch makes it possible for every section under maintenance to be completely grounded so that no electrical shock or system damage is suffered.
Substations:
Substations deal with high-voltage power. In this case, earthing switches are necessary for connecting parts of the systems, such as power lines, before any repair or servicing.
VCB panels:
Earthing switches are a necessity in vacuum circuit breaker (vcb) panels for increased safety. The panels deal with medium-voltage power. So, the earthing switch grounds the system before the panel is opened in order to protect people from potential shock from electricity.
Renewable energy systems:
In solar and wind power systems, earthing switches are used to disconnect circuits that require maintenance. These systems often operate in uninhabited or extreme environments.
Packing and Shipping
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Packing |
Wooden / Catoon / Pallet |
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Shipping |
Express, Air Freight, Sea Freight, LCL/FCL |
FAQ
We're professional earthing switch manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to buy earthing switch at competitive price from our factory.
