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DC Switch Disconnector Rotary Switch For Isolation

YRHD-DB250R-02 it’s a solar disconnect isolating switch, also known as a solar disconnect switch or solar isolator switch, is an important component in a solar power system. Used to safely

DC Switch Disconnector Rotary Switch For Isolation

●Protect circuits from overcurrent.

●Overload protection and short-circuit protection.

●Widely used in solar PV photovoltaic systems.

●Structure, small size and convenient use.

●Passed KEMA, CE, TUV certification.

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YRHD-DB250R-02 it’s a solar disconnect isolating switch, also known as a solar disconnect switch or solar isolator switch, is an important component in a solar power system. 

Used to safely disconnect the solar panels or arrays from the rest of the system, including the inverter and the electrical grid.

The main purpose of a solar disconnect isolating switch is to ensure the safety of people and equipment during installation, maintenance, or in case of emergencies. It allows for easy isolation of the solar panels, preventing any current flow and ensuring that the system is not energized while work is being done.

In addition to safety, a solar disconnect isolating switch also helps with system maintenance and troubleshooting. By disconnecting the solar panels from the rest of the system, it allows for easy inspection, repair, or replacement of components without the risk of electrical shock or damage.

 

Easy to install
Wiring: Since the switch is non-polarized, all types of wiring and connections are possible. Easy access without tools, and auxiliary contacts can be integrated without tools. The mechanical device can be centered to meet the installation requirements.

 

Safe reliable operation
Reliable position indication through visible contacts.
The opening and closing of the switch is fully independent from the speed of operation, ensuring safe operation under all conditions.
High temperature withstand: no derating up to 55 C(131F),functional from-40to+122F(-40to+50°℃).

 

Designed for harsh environments
Vibration testing(from 13.2 to 100 Hzat0.7 g) Choc testing (15 g during three cycles).
Humid temperature testing(2 cycles,55C/131F with 95% humidity level)
Salt mist testing(3 cycles with humidity storage40C/104F,93% humidity after each cycle).

 

Technial Data

Ratedcurrent le 160A 250A 315A 400A 630A 800A
Frame size YRHD-DB250R-02
Thermal current at 40℃(A) 160 250 315 400 630 800
Thermal current at 50℃(A) 160 250 315 400 630 760
Thermal current at 60℃(A) 160 250 315 400 570 685
Rated insulation voltage(Ui) 1500 1500 1500 1500 1500 1500

Rated impulse withstand

12 12 12 12 12 12

The short -circuit capacityis between 1000 and 1500VDC(no protection)

Rated short time Withstand current lcw 1s (kAeff)

5 5 5 8 8 8

Rated short-circuit makeing capacity icm(kA peak)-60ms

10 10 10 10 10 10

Connection

Recommended Cu rigid cable

aross-section(mm2)

70 120 185 240 2*185 2*240
Recommended Cu busbar width(mm2) 20 20 20 25 25 25

Mechanical characteristics

Durability(number of operating cycles)

8000 8000 8000 8000 8000 8000
Number of tripping operations 1000 1000 1000 1000 1000 1000
power loss/pole(W/Pole) 4.5 11.2 13 13 30.2 50

 

 

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FAQ

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What is the main business of YRO Company?
What is the main business of YRO Company?

YRO is mainly engaged in the research and development, production and sales of low voltage components and photovoltaic related products.

Do YRO's products comply with international quality standards such as CE and UL certifications?
Do YRO's products comply with international quality standards such as CE and UL certifications?

YRO’s products strictly adhere to international quality standards. Low voltage components like automatic transfer switches for dual power supplies and circuit breakers have passed CE, UL and other certifications. These certifications indicate that our products have reached the internationally recognized level in terms of electrical safety and performance stability. In the production process, we adopt an advanced quality management system, and every link from raw material procurement to finished product delivery is strictly inspected to ensure reliable product quality.

How about the product prices and cost performance ratio?
How about the product prices and cost performance ratio?

We offer competitive prices. In terms of cost performance ratio, YRO’s products are based on high quality materials and advanced technologies. While ensuring long term stable operation, they can save customers a lot of later maintenance costs and potential losses caused by equipment failures. Compared with similar products of other brands, our products have price advantages under the same quality, or provide more functions and better performance within the same price range.

What is the after sales service system like and what is the response time?
What is the after sales service system like and what is the response time?

YRO has a complete after sales service system. In case of product failures, we will respond within 24 hours after receiving the notice.

Can products be customized according to requirements?
Can products be customized according to requirements?

YRO has a powerful product customization ability. We can customize the production of low voltage components and photovoltaic products according to customers’ special requirements, such as specific voltage and current specifications, as well as personalized functional requirements.

What technical support and services does YRO provide?
What technical support and services does YRO provide?

YRO provides customers with comprehensive technical support, including product selection guidance, recommending the most suitable low voltage components or photovoltaic products according to customers’ electrical equipment and usage scenarios; providing installation and commissioning technical support to ensure the correct installation and operation of products; and also providing technical consultation during the use process to answer customers’ questions about product performance, maintenance and other aspects.

How about the inventory situation and can timely delivery be guaranteed?
How about the inventory situation and can timely delivery be guaranteed?

YRO maintains a reasonable inventory level. For commonly used specifications of low voltage components and photovoltaic products, a certain quantity of inventory is kept to ensure that customer orders can be met in a timely manner. Meanwhile, we have established close cooperative relationships with suppliers and can quickly obtain raw materials for production to replenish inventory, so as to ensure the stability of supply even when the market demand fluctuates greatly.

How is the company's reputation and qualifications?How is the company's reputation and qualifications?
How is the company's reputation and qualifications?How is the company's reputation and qualifications?

YRO is an enterprise with a good reputation. It has been operating in the industry for many years without any bad records. We have complete production qualifications, including relevant production licenses and quality system certifications. Meanwhile, we actively participate in the formulation of industry standards and activities of industry associations.

What are the main types of YRO's low voltage components?
What are the main types of YRO's low voltage components?

YRO’s low voltage components include but are not limited to circuit breakers, isolation switches, dual power transfer switches, surge protection devices, voltage protectors and fuses.

What are the functions of YRO's photovoltaic combiner boxes?
What are the functions of YRO's photovoltaic combiner boxes?

YRO’s combiner boxes gather the outputs of multiple photovoltaic modules together, provide over current protection through fuses or circuit breakers, and have built in lightning protection modules to effectively resist the impact of lightning strikes or surge voltages. In addition, the combiner boxes optimize the wiring structure of the system, reduce the number of cables, and lower construction and maintenance costs.

In which scenarios are YRO's circuit breakers applicable?
In which scenarios are YRO's circuit breakers applicable?

They are applicable to the protection and control of low voltage distribution systems, industrial control systems and photovoltaic grid connected systems.

Are YRO's products waterproof and dustproof?
Are YRO's products waterproof and dustproof?

The protection level of YRO’s combiner boxes and some products reaches IP65 and above, which can be used in outdoor environments.

How to download YRO's product technical manuals?
How to download YRO's product technical manuals?

You can visit the download page on YRO’s official website or directly send an email to obtain the files.

Which countries and regions does YRO's market cover?
Which countries and regions does YRO's market cover?

The products are sold to Europe, North America, Asia, the Middle East and Africa and other regions.

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