Complaint
EHD series products are DC load disconnectors. They can ensure the disconnection and connection of DC circuits under load, as well as safety isolation. They are mainly used in the field of photovoltaic systems. The rated voltage can reach 1500VDC and the maximum current can reach 630A.They has two installation methods,Directly operate the handle in the cabinet (DB) and Outside handle (DC).
ONCCY offers a range of load break switches for PV Solar System. Overrated neutral, high short-circuit withstand but also motorised: the devices adapt to all types of cut-off requirements. They can also be adapted to different applications such as earthing, tropical zones or remote control.
Product Benefits
Technical Data
| Rated current Ie | 160A | 250A | 315A | 315H | 400A | 630A | 800A | ||||
| Frame size | EHD-315 | EHD-630 | |||||||||
| Thermal current (Ith) | 160 | 250 | 315 | 400 | 400 | 630 | 800 | ||||
| Rated insulation voltage (Ui) | 1500 | 1500 | 1500 | 1500 | 1500 | 1500 | 1500 | ||||
| Rated impulse withstand voltage Uimp (KV) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | ||||
| Code | Number of poles | Rated voltage | Utilisation category | Ie(A) | Ie(A) | Ie(A) | Ie(A) | Ie(A) | Ie(A) | Ie(A) | |
| EHDN | 2P(1P+,1P-) | 4P(2P+,2P-) | 1000VDC | DC-PV1/DC-21B | 160 | 250 | 315 | 400 | 400 | 630 | 800 |
| EHDT | 2P(1P+,1P-) | 4P(2P+,2P-) | 1500VDC | DC-PV1/DC-21B | 100 | 160 | 250 | 315 | 400 | 630 | 800 |
| EHDT | 3P(2P+,1P-) | 6P(4P+,2P-) | 1500VDC | DC-PV1/DC-21B | - | - | 315 | 400 | - | - | - |
| Number of poles | Rated voltage | Utilisation category | Ie(A) | Ie(A) | Ie(A) | Ie(A) | Ie(A) | Ie(A) | Ie(A) | ||
| EHDN | 2P(1P+,1P-) | 4P(2P+,2P-) | 1000VDC | DC-PV2 | 160 | 250 | 315 | - | 400 | 630 | - |
| EHDT | 2P(1P+,1P-) | 4P(2P+,2P-) | 1500VDC | DC-PV2 | 100 | 160 | 250 | - | 400 | 630 | - |
| EHDT | 3P(2P+,1P-) | 6P(4P+,2P-) | 1500VDC | DC-PV2 | - | - | 315 | - | - | - | - |
| The short-circuit capacity is between 1000 and 1500VDC (no protection) | |||||||||||
| Rated short time withstand current lcw 1s (kAeff) Icw | 5 | 5 | 5 | 5 | 8 | 8 | 8 | ||||
| Rated short-circuit making capacity lcm(kA peak)- 60 ms Icm | 10 | 10 | 10 | 10 | 10 | 10 | 10 | ||||
| Cable | |||||||||||
| Recommended Cu rigid cable cross section(mm) | 70 | 120 | 185 | 185 | 240 | 2×185 | 2×240 | ||||
| Recommended Cu busbar width(mm) | 20 | 20 | 20 | 20 | 25 | 25 | 25 | ||||
| Mechanical characteristics | |||||||||||
| Durability (number of operating cycles) | 8000 | 8000 | 8000 | 8000 | 8000 | 8000 | 8000 | ||||
| Number of cycles of operation with current | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | 1000 | ||||
