ETEK EKU4-40Z Plug In Changeable SPD Instruction Manual

ETEK EKU4-40Z Plug In Changeable SPD

Product Information

• Specifications
  • Model: EKU4-40Z Plug-in/changeable SPD
  • Standard: IEC50539-11
• Application
  • The EKU4-40Z is designed for use in electrical systems to provide overvoltage protection.
• Overall and Installation Dimension
  • Dimensions (mm): 72 x 54 x 36 x 18
• Technical Data
  • Rated Voltage (VDC): 500V (EKU4-40Z/500), 800V (EKU4-40Z/800), 1,000V (EKU4-40Z/1000)
  • Continuous Operation Voltage (VDC): 550V (EKU4-40Z/500), 850V (EKU4-40Z/800), 1,100V (EKU4-40Z/1000)
  • Voltage Protection Level of Up: 2.5V (EKU4-40Z/500), 3V (EKU4-40Z/800), 3.6V (EKU4-40Z/1000)
  • Nominal Discharge Current In (8/20s): 20KA
  • Maximum Discharge Current Imax (8/20s): 40KA
  • Reaction Time: 25ns
  • Width/Pole: 18mm
  • Color Mark: PBT -40-80
  • Shell Material: PBT
  • Ambient Temperature: -40°C to 80°C
  • Fuse or Circuit Breaker Matched: 25A
  • Line Terminal Specification: 2.5~35mm2
  • PE Terminal Specification: 2.5~35mm2
  • Signal Terminal Specification: 1.5mm2 (V+/PE/V-)
  • Protection Degree: IP20
  • Mounting: DIN rail 35mm
  • Network System: PV Available
  • Signal Terminal: Yes

Product Usage Instructions

• Installation
  • Select a suitable location for mounting the EKU4-40Z SPD.
  • Ensure the electrical system is de-energized before installation.
  • Mount the EKU4-40Z on a DIN rail using the provided mounting brackets.
  • Connect the line, PE, and signal terminals according to the terminal specifications.
  • Make sure the fuse or circuit breaker matched is correctly installed.
• Operation
  • The EKU4-40Z SPD will continuously monitor the voltage in the electrical system and provide overvoltage protection when necessary. It has a reaction time of 25, ensuring a quick response to voltage surges.
• Maintenance
  • The EKU4-40Z SPD does not require regular maintenance. However, it is recommended to periodically inspect the unit for any signs of damage or wear. If any issues are detected, the unit should be replaced.
• FAQ
  • Q: What is the maximum discharge current of the EKU4-40Z SPD?
  • A: The EKU4-40Z has a maximum discharge current of 40KA (8/20s).
  • Q: Can the EKU4-40Z be used in photovoltaic (PV) systems?
  • A: Yes, the EKU4-40Z is suitable for use in PV systems.

Application

Overall and Installation Dimension(mm)

• The function of lightning and surge protection systems is to protect the devices, functional isolations, and overvoltage-sensitive consumer equipment of energy distribution systems against all lightning and overvoltage damages.
• whole building; the outdoor lightning protection system is generally not sufficient to eliminate such malfunctions.
• In most types, the defected protection device can be made operative again by changing the damaged insert; these variants are also equipped with both an optical operation signal and auxiliary status contact.

Technical Data

Rated Voltage(VDC)

Continuous Operation Voltage(VDC)

| 500V

550V

| 800V

850V

| 1,000V

1,100V

Voltage Protection Level of Up| 2.5| 3| 3.6
Nominal Discharge Current In (8/20μs)| 20KA| 20KA| 20KA
Maximum Discharge Current Imax (8/20μs)| 40KA| 40KA| 40KA
Reaction Time| ＜25ns| ＜25ns| ＜25ns
Width/Pole| 18mm| 18mm| 18mm
Color Mark

Shell Material Ambient Temperature

|  |  |

-40PBT0℃

℃-8

PBT| PBT
-40℃-80℃| -40℃-80℃
Fuse or Circuit Breaker Matched| 25A| 25A| 25A
Line| 2.5~35mm| 2.5~35mm| 2.5~35mm
Terminal Specification

No.of Pole

| PE| 2

2.5~35mm

| 2

2.5~35mm

| 2

2.5~35mm

Signal| 2

1.5mm

| 2

1.5mm

| 2

1.5mm

 | 2

V+/PE/V-

| 2

V+/PE/V-

| 2

V+/PE/V-

Protection Degree| IP20| IP20| IP20
Mounting| DIN rail 35mm| DIN rail 35mm| DIN rail 35mm
Network System| PV| PV| PV
Signal Terminal| Available| Available| Available

• www.etek-china.com.
• Plug-in/changeable SPD: Standard_ IEC50539-11

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