China Disconnect Switch Manufacturers Suppliers Factory - Custom Disconnect Switch

Your Professional Disconnect Switch Supplier

Our goal is to become your true partner in the field of disconnect switch China. 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.

600 Amp 3 Phase Fused Disconnect
600 amp 3 phase fused disconnect ensure on-load connection and disconnection of circuits, providing reliable overcurrent and short-circuit protection.
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200 Amp Fused Disconnect
200 amp fused disconnect is suitable for AC 50/60Hz, rated working voltage 400V and below, and rated current up to 630A.
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Hv Disconnect Switch
hv disconnect switches are AC 50Hz outdoor high-voltage electrical equipment with rated voltages of 10kV and 15kV.
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High Voltage Isolator Switch
GN27-40.5(C)(D) type high voltage isolator switch, suitable for indoor installations with a rated voltage of 40.5kV and a three-phase AC frequency of 50Hz. Available current ratings are 400A,...
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Indoor Disconnect
Indoor AC disconnect switches are suitable for AC 50Hz power systems with a rated voltage of 12kV and below. They are equipped with a manual operating mechanism and are used for switching...
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Indoor Disconnect Switch
The GN30-12 series indoor rotary high-voltage disconnecting switch is a new type of rotary contact knife-type disconnecting switch. Its main structure consists of two sets of insulators and...
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Fuse Switch Disconnect
Fuse switch disconnect are suitable for AC 50Hz, rated voltage up to 660V, and DC voltage up to 440V. They are low-voltage power distribution components integrating isolation, switching, and...
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Load Break Isolator
The GRGL series load disconnect switches are suitable for AC 50Hz, rated voltage up to 660V, and DC rated voltage up to 440V, with a rated current range of 125A-1600A.
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High Voltage Disconnect Switch
This GN24-12D high-voltage disconnect switch is an indoor high-voltage disconnect switch with a grounding switch. It is an upgraded version of the GN19 series (with added grounding function).
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Hv Disconnector Switch
hv disconnector switches are switchgear with rated voltages ranging from 12kV to 126kV, suitable for outdoor high-voltage AC circuits.
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Hv Isolator
The GW5 series hv isolators utilize a modular, single-column, telescopic outdoor structure.
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3 Phase Outdoor Disconnect
This series of 3 phase outdoor disconnect is suitable for distribution lines operating at 50Hz AC and rated voltages up to 500V.
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Why Choose Us

Quality control:

We rigorously control every process, ensuring our products comply with relevant standards such as GB7251.1, GBT/23359, and JB/T9661.

Our team:

We have a professional team of over 200 employees, including over 25 professional technicians.

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 Disconnect Switch

01/

Staying within electrical code: Disconnect switches as a critical and required component for your business, making it a matter of legality to install them, if nothing else.

02/

Protecting investments: Disconnect switches prevent many common electrical incidents, including short circuits and surges. These problems can severely harm or even destroy important equipment, costing you a lot in replacement and repair, making installing a safety switch a very smart investment.

03/

Promoting personnel and employee safety: Electrical accidents and failures can generate a massive risk for injury and potentially fatality. Safety switches provide exactly as their name suggests and are vital to ensure your associates avoid a very serious health risk.

04/

Providing a cost-effective solution: Replacing equipment is a huge financial strain many businesses would prefer to avoid or may be unable to handle. Disconnects are highly cost-effective, making them one of the most effective means for ensuring your business and assets are safe and secure.

Specification of Disconnect Switch

Code	GRGL-100/3
Conventional thermal current (A)	100
Rated operating current (A)	100
Rated operating voltage (V)	400
Rated insulation voltage (V)	750
Rated impulse withstand voltage (kV)	6
Rated making capacity (A)	100
Rated breaking capacity (A)	100
Mechanical life (times)	10000
Electrical life (times)	1000
Short-time withstand current (kA/1s)	10
Operating force (N)	≤400
Pollution degree	3
Enclosure protection grade	IP00

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Features of Disconnect Switch

The disconnect switch disconnects the normal operating current, while the fuse interrupts the circuit fault current, thus cutting off the load current. At the same time, the load isolating switch is equipped with an arc extinguishing device to handle overload current.

It is used for infrequent circuit connection and disconnection, as well as for electrical isolation.

Types of Disconnect Switch

Fused disconnect switches:

This type incorporates a fuse inside the switch enclosure. The fuse offers overcurrent protection by opening the circuit upon detecting excess current. The fuse blows in case of excess current and will need replacement to reinstate the power.

Non-fusible disconnect switches:

These are switches without a fuse and their main usage is manual disconnection. On their own, they do not offer protection against overcurrents.

Application of Disconnect Switch

Battery disconnect switches:

Primarily used in vehicles to prevent battery drain and theft.

Electrical disconnect switches:

Used in various electrical systems for maintenance, safety, and emergency purposes. Fusible types are used where overcurrent protection is needed, while non-fusible types are used in systems with existing upstream protection.

Components of Disconnect Switch

Double-break contacts: Enhanced isolation with two break points per pole.

Positive

drivemechanism: Simultaneous operation of all poles.

Contact springs: Maintain proper pressure and low resistance.

Operating linkage: Translates handle motion to contact movement.

Position indicators: Provide visual confirmation of switch state.

Packing and Shipping of Disconnect Switch

Packing	Wooden box
Shipping	Shipped by road, sea, rail

FAQ

Q: What is a disconnect switch used for?

A: A disconnect switch is an electrical device used to de-energize circuits or power supplied to an electrical machine during maintenance.

Q: What is the difference between a breaker and a disconnect switch?

A: Breaker: Manually or automatically operated. It provides overcurrent protection, and it can be reset after tripping. Disconnect switch: Manually operated; indication normally included that shows whether it is open or closed. Not self-protecting; use with caution to avoid operating under load conditions.

Q: What is the difference between an isolator and a disconnect switch?

A: Isolating switches: Primarily used for maintenance and safety isolation in already de-energized circuits. Disconnect switches: Suitable for both operational switching and safety isolation, often found in industrial and commercial power systems.

Q: How to choose a disconnect switch?

A: Determine your power needs. Calculate voltage and current requirements. Consider the application type. Choose your mounting style. Browse disconnect switch handles.

Q: When should a disconnect switch be installed?

A: Home renovations or additions: If you're undertaking home renovations or adding new appliances or circuits, installing a disconnect switch is a wise choice. It allows you to isolate power to specific areas without affecting the entire electrical system.

We're professional disconnect switch manufacturers and suppliers in China, specialized in providing high quality custom service. We warmly welcome you to buy disconnect switch at competitive price from our factory.