Fuse Switch

Your Professional Fuse Switch Supplier

Cowin Electrical Co., Ltd. is a leading enterprise specializing in the export and manufacturing of electrical products. Our comprehensive product range includes distribution switchgear control equipment, high and low voltage electrical appliances and accessories, dropout fuses, surge arresters, disconnectors, insulators, power fittings, hardware tools, wiring terminals, and distribution boxes.

Rich Experience
With over 15 years of extensive experience in production and export, we have established a solid reputation in the industry.

Custom Service
We offer OEM/ODM services to meet your specific requirements, ensuring that the final products align with your expectations.

Professional Team
Our team comprises experienced and skilled designers, including CAD and 3D design specialists, who possess the capability to deliver exceptional designs for your projects.

Quality Control
We have obtained ISO9001 quality management system certification and comply with international standards such as IEC 60099-4, IEC 61643-1, IEC 291, and IEC 282, issued by the International Electrotechnical Commission (IEC).

Specification of Fuse Switch

Type	Spec	Competitor part number	Rated voltage (V)	Class rating (A)	Dimensions (mm)
Type	Spec	Competitor part number	Rated voltage (V)	Class rating (A)	A	B	C	D	E	F	G	H	I	J	K	L
J	82	CECJ	415	32~200	110	82	45.2	40.5	30	14.8	18	6.5	2.4	17.5	9.8	30.8
J	82	CECJ	415	200~400	110	82	44.8	40	30	14.4	18	6.5	2.4	17.5	9.8	38
J	92	CECJ	415	20~315	131	92	46.8	40.5	41	17.4	-	8.7	3.2	20.7	11	30.8
J	92	CECJ	415	355~400	131	92	46.4	40	41	17.4	24	8.1	3.2	20.7	10	38
J	92	CECJ	415	315~500	131	92	-	45	38	16.5	22	8	3.2	20.6	11	50
J	92	CECJ	415	560~630	129	92	44.5	47.8	38	16.5	22	8	3.2	20.6	11	73.3

Voltage	500V
Insulation Level	1000V
Frequency	50/60HZ
Operational current with fuse	630A
Operational current with blades	800A
Installation category	AC22
Short lasting current (1s)	12kA
Dynamic current (crest )	50KA
Interruption capacity	100KA
Minimum mechanical life (operation)	1000
Weight	1.8kg
Protection range	IP23

Types of Fuse Switch

The fuse switches produced by our company mainly include the following types:

High Voltage Transformer Limit Current Fuse

It can be used indoor system of 50/60Hz and rated vol. 3.6, 7.2, 24, 40.5kV, used together with other switch facilities such as loading switches, vacuum contactors, it can protects electrical transformers and other electric facilities against over loading, etc.

630A Fuse Switch Disconnector

The APR630 fuse switch it is used either as an operation or protection device for LV lines. It is designed to be used with NH 1-2or 3 size fuses offering a maximum of 630 Amps of line protection without blades. It is manufactured in reinforced fiberglass polyamide and fulfills all the necessary requirements for outdoor installation and operation.

Low Voltage Electrical Pole Mounted Fuse Cutout

The switch offers a reliable medium for disconnector & protection of fully insulated open wire network. The fuse switch is versatile and is ideally suited for mountion directly to poles, transformer & cross arms.

Applications of Fuse Switch

Motor Protection

Safeguards motors from overloads during startups. Lockable switches ensure safe isolation for maintenance.

HVAC Systems

Protects compressors and ventilation units from electrical faults. Facilitates easy servicing with lockout capabilities.

Industrial Pumps and Compressors

Prevents damage in critical systems with precise overload protection. Allows secure maintenance access.

Control Panels

Shields sensitive electronics from voltage spikes. Simplifies power shutdowns for panel upgrades.

Lighting Circuits

Ensures safe maintenance for streetlights or warehouse fixtures.

Power Sources (Generators and Inverters)

Guards against faults while enabling safe testing and connectivity.

Precautions for the Use of Fuse Switch

The protection characteristics of the fuse should be compatible with the overload characteristics of the protected object. Taking into account the possible short-circuit current, select the fuse with the corresponding breaking capacity.

The rated voltage of the fuse should be adapted to the line voltage level, and the rated current of the fuse should be greater than or equal to the rated current of the melt.

The rated current of the melt of the fuse at all levels in the line should be matched accordingly, and the rated current of the previous melt must be greater than the rated current of the next melt.

The melt of the fuse should be matched with the melt as required, and it is not allowed to increase the melt at will or use other conductors to replace the melt.

Safety Precautions for Installing Fuse Switches

Turn Off All Power
Before entering the realm of wires and currents, ensuring all power is switched off serves as a vital safeguard against the unseen power of electricity. In the domain of electricians, armed with knowledge and caution, securing the main power source marks the initial triumph in this endeavor.

Wear Protective Gear
In the realm of electrical safety, personal protective equipment (PPE) plays a pivotal role in safeguarding against potential hazards. Standing before the distribution board, professionals recognize the imperative of armored gear to shield against the risks of arc flashes. Hands, crucial tools in this electrical amphitheater, find protection in insulated gloves, a fundamental measure ensuring safety and dexterity in the workspace.

Choose The Proper fuse switch
When embarking on a project involving wiring enhancements or new electrical installations, selecting the right fuse switch is a critical decision. Choosing the correct size and type of fuse switch ensures that your electrical system operates smoothly and safely. Just as selecting the right key opens a treasure trove, matching the breaker size to the electrical load prevents overcapacity issues that could disrupt the system’s performance.

Inspect Tools And New Parts
In the meticulous process of installing fuse switches, one must begin with a critical inspection of the tools at hand—a crucial prelude to ensuring safety and precision throughout the task. Every tool, whether it’s a wire stripper or a pair of pliers, should undergo careful scrutiny for any signs of wear, damage, or corrosion.

Be Aware Of What Is Still Hot
Before delving into the heart of the project, it’s essential for professionals to maintain vigilant energy and a keen awareness of live electrical wiring circuits that may emit an ominous hum, indicating their active status. Clearly marking or tagging these hazardous areas is akin to strategically placing warning signs on a battlefield, preempting the risk of a short circuit.

Inspect Prior To Turning On
With the meticulousness of a master craftsman verifying every component before activating a mechanism, one must thoroughly inspect their work before re-energizing the circuit. Ensure each installation withstands potential faults, meticulously checking for any loose wires or incomplete connections.

Customization Process of Fuse Switch

● Initial Consultation
● Design
● Material Selection
● Manufacturing
●Testing
● Packaging and Shipping
● Post-Sales Support

Packaging and Shipping

Packaging	Export standard package or special package as the requirement of customers.
Shipping	We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc.

FAQ

Q: How does a fuse switch work?

A: Fuse switch disconnectors are much safer than circuit breakers because they contain a fusible element that melts when an overcurrent occurs. This ensures that the electricity supply is cut off in the event of a fault, reducing the risk of fire or damage to your electrical system.

Q: Should the fuse switch be up or down?

A: It's most likely to be the up position for 'on' and the down position if they've tripped. If any switches are down, move them back into the up position to turn them back on.

Q: Can a fuse switch go bad?

A: The simple answer is that, YES, circuit breakers can go bad, so your suspicions may be well-founded. Just like any other essential device in your home (e.g. your water heater, HVAC system, etc.), circuit breakers can quit working properly. That said, don't begin replacing your circuit breaker just yet.

Q: Why does my fuse switch keep tripping?

A: Too many devices being used at once draw more electricity than they can manage safely, and the fuse will trip. If you've been using lots of appliances in one room, you've likely overloaded the circuit. Extension leads are often the source of the problem.

Q: What can I do if a fuse keeps blowing?

A: If fuses are blowing repeatedly, it's best to have an electrician investigate. Damaged outlet or wiring: If something is wrong with the wiring of an outlet, it can create a power surge that will blow a fuse.

Q: Can I replace a fuse myself?

A: Replacing a fuse is a relatively easy, do-it-yourself home task that you can tackle with a little information and some electrical home safety savvy. If your home has a fuse box, the best advice is to plan ahead and become familiar with the electrical panel and with the types of fuses it requires.

We're professional fuse switch manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to buy high-grade fuse switch for sale here from our factory. Contact us for more details.