| Customization: | Available |
|---|---|
| Type: | Low-voltage |
| Structure: | 35mm DIN-Rail |
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ONCCY DC Isolator is Designed for solar inverter DC side disconnect, Combined with other components, our switches can guarantee complete protection from any form of over-voltage and overloading. With a special instruction for arc extinguishing, we offer increased safety, reliability and longer life.
This is an essential safety switch and is mandated in each photovoltaic power system according to IEC 60364-7-712. The corresponding British requirement comes from BS7671 - Part 712.537.2.1.1, which states "To allow maintenance of the PV convertor, means of isolating the PV convertor from the DC side and the AC side must be provided".
Product Benefits
Product Benefits
Technical Data
| Main Parameters | 13 | 20 | 25 | 40 | 50 | ||
| Rated insulation voltage | Ui | V | 1500 | 1500 | 1500 | 1500 | 1500 |
| Rated thermal current | Ith | A | 32 | 40 | 55 | 55 | 55 |
| Rated impulse withstand voltage | Uimp | V | 8000 | ||||
| Rated short-time withstand current (1s) | Icm | A | 780 | ||||
| Rated short-time making capacity | Icm | 1200A | |||||
| Maximum cable cross sections (incl. jumper) | |||||||
| Solid or standard | mm² | 4-16 | |||||
| Flexible | mm² | 4-16 | |||||
| Flexible (+ multicore cable end) | mm² | 4-16 | |||||
| Torque | |||||||
| Tightening torque terminal screws M4. | Nm | 1.2-1.8 | |||||
| Tightening torque single hole mounting nut M16 | Nm | 2.0-2.3 | |||||
| Tightening torque knob screws M3 | Nm | 0.5-0.7 | |||||
| Switching on or off torque | Nm | 0.9-1.9 | |||||
| General parameters | |||||||
| Knob positions | 9 o'clock OFF, 12 o'clock, ON | ||||||
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Electrical Life |
Actual | 3000 Cycles | |||||
| Standard | 300 Cycles | ||||||
|
Mechanical Life |
Actual | 10000 Cycles | |||||
| Standard | 10000 Cycles | ||||||
| Number of DC poles | 2 or 4 (6/8 geek choice) | ||||||
| Distance of contacts (per pole) | mm | 8 | |||||
| Operation temperature | ºC | -40 to +85 | |||||
| Store temperature | ºC | -40 to +85 | |||||
| Pollution degree | 3 | ||||||
| Overvoltage category | III | ||||||
| IP rating of shafte and mounting nut | IP66 | ||||||
| Number of layers | Voltage/Current (DC-PV1) | ||||
|
2/4 |
600Vdc | 800Vdc | 1000Vdc | 1200Vdc | 1500Vdc |
| 32 | 26 | 13 | 10 | 5 | |
| 40 | 30 | 20 | 12 | 6 | |
| 55 | 45 | 25 | 15 | 8 | |
| / | 50 | 40 | 30 | 20 | |
| / | 55 | 50 | 40 | 30 | |
|
4T/B/S |
/ | / | 32 | 26 | 13 |
| / | / | 40 | 30 | 20 | |
| / | / | 55 | 40 | 30 | |
| / | / | / | / | 45 | |
| / | / | / | / | 50 | |
FAQ
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