Professional Solar DC Isolator Manufacture
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".
EDS7 DC Isolator Switch
Product Profile
PV Isolator Switches are ON-OFF Switches to isolate the power to a particular area of operation. The Isolator Switches are offered in a wide range from 1 Pole to 10 Poles. Isolators with spring return upto 4 Poles are available to energise circuits. Isolators with pre-close contacts are used for safety circuits and for connecting neutral and earth lines.
Isolators are generally rated for AC1/AC21 while for motor applications they need to be rated for AC3/AC23A duty.
Applications: Switching of main/control and instrumentation circuits motor ON-OFF and other special application circuits.
Product Benefits
- Non-polarity DC Isolator Switch
- Modular design, available 2-10 levels.
- Single Hole Mounting, Panel Mounting, Distribution Board, Door Clutch or Enclosure available.
- Dynamic sealing design
- IP66 protection rate.
- DC 1500V insulation voltage design, passed IEC/EN60947-3, AS60947.3, UL508i,GB/T14048.3 test, TUV, CE, CB, SAA, UL, CCC available.
- Impact resistance: IK08
- Rated current: 13A, 20A, 25A, 40A, 50A
Technical Data
According to IEC/EN60947-3,AS60947.3:2018, UL508i, GB/T14048.3,Utilization category DC-PV1/DC-PV2.
Model | A | 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 (1ms) | Icw | A | 780 | |||||
Rated short-time making capacity | Icm | A | 1200 | |||||
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. | N·m | 1.2-1.8 | ||||||
Tightening torque single hole mounting nut M16 | N·m | 2.0-2.3 | ||||||
Tightening torque knob screws M3 | N·m | 0.5-0.7 | ||||||
Switching on or off torque | N·m | 0.9-1.3 | ||||||
General parameters | ||||||||
Knob positions | 9 o'clock,OFF | 12 o'clock,ON / 12 o'clock,OFF 3 o'clock,ON | ||||||
Electrical Life | Actual | 3000 Cycles | ||||||
Standard | 300 Cycles | |||||||
Mechanical Life | Actual | 10000 Cycles | ||||||
Standard | 10000 Cycles | |||||||
Distance of contacts (per pole) | 8mm | |||||||
Operation temperature | -40ºC to +85ºC | |||||||
Store temperature | -40ºC to +85ºC | |||||||
Pollution degree | 3 | |||||||
Overvoltage category | II | |||||||
IP rating of shafte and mounting nut | IP66 |
Product selection form
Layers | EDS7 Voltage / current (DC-PV1) | |||||
2/3/4/6/8/10 | 600Vdc | 800Vdc | 1000Vdc | 1200Vdc | 1500Vdc | Model |
32 | 26 | 13 | 10 | 5 | EDS7XX/13/ZY | |
40 | 30 | 20 | 12 | 6 | EDS7XX/20/ZY | |
55 | 45 | 25 | 15 | 8 | EDS7XX/25/ZY | |
/ | 50 | 40 | 30 | 20 | EDS7XX/40/ZY | |
/ | 55 | 50 | 40 | 30 | EDS7XX/50/ZY | |
4T/B/S | / | / | 32 | 26 | 13 | EDS7XX/13/ZY |
/ | / | 40 | 30 | 20 | EDS7XX/20/ZY | |
/ | / | 55 | 40 | 30 | EDS7XX/25/ZY | |
/ | / | / | / | 45 | EDS7XX/40/ZY | |
/ | / | / | / | 50 | EDS7XX/50/ZY | |
3T/6T/9T | / | / | 32 | 23 | 10 | EDS7XX/13/ZY |
/ | / | 40 | 30 | 13 | EDS7XX/20/ZY | |
/ | / | 55 | 40 | 20 | EDS7XX/25/ZY | |
/ | / | / | 45 | 30 | EDS7XX/40/ZY | |
/ | / | / | 50 | 40 | EDS7XX/50/ZY | |
2H | 50 | 26 | 13 | 10 | 5 | EDS7XX/13/ZY |
64 | 30 | 20 | 12 | 6 | EDS7XX/20/ZY | |
80 | 45 | 25 | 15 | 8 | EDS7XX/25/ZY | |
90 | 50 | 40 | 30 | 20 | EDS7XX/40/ZY | |
100 | 55 | 50 | 40 | 30 | EDS7XX/50/ZY | |
3H | / | 50 | 13 | 10 | 5 | EDS7XX/13/ZY |
/ | 64 | 20 | 12 | 6 | EDS7XX/20/ZY | |
/ | 80 | 25 | 15 | 8 | EDS7XX/25/ZY | |
/ | 90 | 40 | 30 | 20 | EDS7XX/40/ZY | |
/ | 100 | 50 | 40 | 30 | EDS7XX/50/ZY | |
4H | / | / | 50 | 10 | 5 | EDS7XX/13/ZY |
/ | / | 64 | 12 | 6 | EDS7XX/20/ZY | |
/ | / | 80 | 15 | 8 | EDS7XX/25/ZY | |
/ | / | 90 | 30 | 20 | EDS7XX/40/ZY | |
/ | / | 100 | 40 | 30 | EDS7XX/50/ZY |
Layers | EDS7 Voltage / current (DC-PV2) | ||||||
2/3/4/6/8/10 | 600Vdc | 800Vdc | 1000Vdc | 1200Vdc | 1500Vdc | Model | |
13 | 13 | 6 | 4 | 3 | EDS7XX/13/ZY | ||
20 | 15 | 8 | 6 | 4 | EDS7XX/20/ZY | ||
25 | 23 | 10 | 8 | 5 | EDS7XX/25/ZY | ||
40 | 30 | 20 | 15 | 8 | EDS7XX/40/ZY | ||
50 | 40 | 25 | 18 | 10 | EDS7XX/50/ZY | ||
4T/B/S/3T/6T/9T | / | / | 12 | / | / | EDS7XX/13/ZY | |
/ | / | 18 | / | / | EDS7XX/20/ZY | ||
/ | / | 20 | / | / | EDS7XX/25/ZY | ||
/ | / | 40 | / | / | EDS7XX/40/ZY | ||
/ | / | 50 | / | / | EDS7XX/50/ZY |
According to UL 508
Layers | EDS7 Voltage / current(UL 508i) | ||||
2/3/4/6/8/10 | 600VDC | 800VDC | 1000VDC | Model | |
30 | 30 | 13 | EDS7XX/13/ZY | ||
30 | 30 | 20 | EDS7XX/20/ZY | ||
30 | 30 | 25 | EDS7XX/25/ZY | ||
30 | 30 | 30 | EDS7XX/30/ZY |
EXPERIENCED PV PROTECTIVE PRODUCT AND EV CHARGING STATION MANUFACTURER

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Q: Are you trading company or manufacturer ?
A: We are manufacturer. We have 30,000 square meters of self-owned plant.Q: Do you have any certificates?
A: Yes,we have UL, TUV, CB, SAA, CCC, CE and other certifications.
Q: How do we make a quick response to customer , 5 inquiry ?
A: Our professional team will reply you online or by email,Skype, whatsApp and so on.
Q: Do you have any exporting experience?Which countries did you export to before?
A: We have lots of exporting experience and customers in many countries,such as America, Japan,Australia,UAE,Canada,Vietnam,Turkey,Thailand,Russia,UK,etc.
Q:Can you supply samples for checking ?
A: Yes, we can supply samples, pls contact for detailed required.
Q:How long is your delivery time?
A: Generally it is within 3days for small qty. Or it is around 15-20 days to a general order.
Q: What is the standard of package of your goods?
A: Export standard package or special package according to customer requirement.
Q:How about inspection?
A: We have the whole inspection system from raw material to end products include transient test, delay test,mechanical life test and so on.Q:What is the service offered by company?
A: We have the professional engineer team which can design and develop the mould to arrive different customer requirements. We also have the professional sales team to offer good service from pre-sale to after-sale.