●DC Power Isolation Switch
●For photovoltaic system protection
●PC material V-0 flame retardant insulation
●Waterproof dustproof and impact resistant
●Cut off the voltage direct current to the solar panel.
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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