EKDS7 Modular Multi-String 1500V DC Disconnector

Non-polarity DC Isolator Switch

Up to 55A.

Modular design, available 2 up to 10 levels.

Dynamic sealing design and materials for an IP66 protection.

DC 1500V insulation voltage and operation.

Mounting Type: DIN Rail (DB), Panel Mounting (PM), Door Interlock (DC), Hole Mounting (HM).

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Product Introduction

ETEK Solar’s EKDS7 modular DC multi-string switch-disconnectors, specifically engineered for advanced photovoltaic installations requiring multiple string configurations.

Designed with versatility in mind, these switch-disconnectors offer exceptional customization options to meet diverse installation requirements. The series supports current ratings from 13A to 55A and operates at voltages up to 1500 Vdc, available in configurations ranging from 2P to 10P versions.

 

Installation flexibility is ensured through four distinct mounting options:

DIN Rail mounting (DB)

Panel mounting (PM)

Door interlock (DC)

Hole mounting (HM)

The series features various handle configurations to suit different operational needs, including direct and external options, with or without locking mechanisms, available in standard black or emergency color variants.

These switch-disconnectors are engineered to meet DC-PV1 and DC-PV2 usage categories, fully complying with IEC/EN60947-3 standards for reliable and safe operation in photovoltaic applications.

Product Parameters

Rated operating current at 1000V (In)

13A

20A

25A

40A

50A

Rated insulation voltage (Ui)

1500V

Rated thermal current (Ith)

32A

40A

55A

55A

63A

Rated impulse withstand voltage (Uimp)

8kV

Rated short-time withstand current (1s) (Icw)

780A

Rated short-time making capacity (Icm)

1200A

Maximum cable cross sections

4~16mm²

Knob positions

OFF at 9hr, ON at 12hr; OFF at 12hr, ON at 3hr

Number of operating cycles with load

3000 Cycles

Number of operating cycles without load

10000 Cycles

Distance of contacts (per pole)

8mm

Operation temperature

-40℃ to +85℃

Store temperature

-40℃ to +85℃

Pollution degree

3

Overvoltage category

II

IP rating (PM, DC)

IP66

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Strategic Vision for a Sustainable Future
Looking ahead, ETEK Electric remains committed to becoming a globally renowned manufacturer in the new energy and electrical protection industry. We continue to focus on:
Developing innovative green energy solutions
Enhancing product safety and reliability
Expanding our sustainable technology portfolio
Supporting global energy transformation
Contributing to a low-carbon future

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