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EKU5 Class T1+T2 DC Surge Protector for PV System
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A DC isolator switch is an electrical safety device that manually disconnects itself from the modules in a solar PV system. In PV applications, DC isolator switches are used to manually disconnect the solar panels for maintenance, installation or repair purposes.
In most solar PV installations, two DC isolator switches are connected to a single string. Normally, one switch is placed close to the PV array and the other close to the DC end of the inverter. This is to ensure that disconnection can be achieved at ground and roof level. DC isolators can come in polarized or non-polarized configurations. For DC isolator switches that are polarized, they come in two, three and four pole configurations.
Parallel wiring, larger aperture, much easier wiring.
Suitable for distribution box module with lock installation.
Arc extinction time less than 3ms.
Modular design. 2 poles & 4poles optional.
Comply with IEC60947-3(ed.3.2):2015, DC-PV1standard.
|
Utilization category DC-PV1/DC-PV2 |
Series |
No.of Strings |
Part Number |
Contact Configuration |
|||||||
|
500V |
600V |
700V |
800V |
900V |
1000V |
1200V |
1500V |
||||
|
32 |
32 |
32 |
32 |
23 |
16 |
13 |
7 |
2 |
1 |
EKD6-DB32-2 |
|
|
32 |
32 |
32 |
32 |
23 |
16 |
13 |
7 |
2 |
2 |
EKD6-DB32-4 |
|
|
32 |
32 |
32 |
32 |
32 |
32 |
32 |
23 |
4 |
1 |
EKD6-DB32-4S |
|
|
32 |
32 |
32 |
32 |
32 |
32 |
32 |
23 |
4 |
1 |
EKD6-DB32-4B |
|
|
32 |
32 |
32 |
32 |
32 |
32 |
32 |
23 |
4 |
1 |
EKD6-DB32-4T |
|
|
Main Parameters |
DB32 |
|
|
Rated insulation voltage |
1500V |
|
|
Rated thermal current |
32A |
|
|
Rated impulse withstand voltage |
8000V |
|
|
Rated short-circuit making capacity |
2,4 |
1000A |
|
Rated conditional short-circuit current |
5000A |
|
|
Max. fuse size |
80A |
|
| Maximum cable cross sections (incl. jumper) | ||
| Solid or standard | 4-16 mm2 | |
| Flexible | 4-10 mm2 | |
| Flexible (+ multicore cable end) | 4-10 mm2 | |
| Torque | ||
| Tightening torque terminal screws M4. | Nm | 1.2-1.8 |
| Tightening torque knob screws M3. | 0.5-0.7 | |
| Switching on or off torque | 0.9-1.3 | |
| General parameters | ||
| Method of mounting | Single Hole Mounting | |
| Type of knob |  |
|
| Knob positions | OFF at 9 hr, ON at 12 hr | |
| Mechanical life | 1000 | |
| Number of DC poles | 2 or 4 | |
| Operation temperature | -40 to +70℃ | |
| Storage temperature | -40 to +85℃ | |
| Pollution degree | 2 | |
| Overvoltage category | III | |
| IP rating of shafted and mounting nut | IP66 | |
| EKD6-DB32-2 | DC Isolator 2P 32A 2series /1strings Top to Bottom Connection PL60*45mm |
| EKD6-DB32-4 | DC Isolator 4P 32A 4series /2strings PL60*45mm |
| EKD6-DB32-4S | DC Isolator 4P 32A 4series /1(3+1) string Top to Bottom Connection PL60*45mm |
| EKD6-DB32-4B | DC Isolator 4P 32A 4series /1(2+2) string Bottom Connection PL60*45mm |
| EKD6-DB32-4T | DC Isolator 4P 32A 4series /1(2+2) strings Top Connection PL60*45mm |
A DC isolator switch is an electrical safety device that manually disconnects itself from the modules in a solar PV system. In PV applications, DC isolator switches are used to manually disconnect the solar panels for maintenance, installation or repair purposes.
In most solar PV installations, two DC isolator switches are connected to a single string. Normally, one switch is placed close to the PV array and the other close to the DC end of the inverter. This is to ensure that disconnection can be achieved at ground and roof level. DC isolators can come in polarized or non-polarized configurations. For DC isolator switches that are polarized, they come in two, three and four pole configurations.
Parallel wiring, larger aperture, much easier wiring.
Suitable for distribution box module with lock installation.
Arc extinction time less than 3ms.
Modular design. 2 poles & 4poles optional.
Comply with IEC60947-3(ed.3.2):2015, DC-PV1standard.
