Siemens 1 Phase Surge Arrester, 40kA, 3.7kV, DIN Rail Mount

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£174.28

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£209.14

(inc. VAT)

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RS Stock No.:
269-9752
Mfr. Part No.:
5SD7483-0KK02
Brand:
Siemens
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Brand

Siemens

Device Type

Surge Arrestor

Voltage Protection Rating

3.7kV

Maximum Surge Current

40kA

Series

5SD7483

Electrical Phase

1

Mounting Style

DIN Rail

Length

90mm

Width

53mm

Depth

66mm

Dimensions

90 x 53 x 66mm

Minimum Operating Temperature

-40°C

Maximum Operating Temperature

+80°C

Operating Temperature Range

-40 → +80 °C

COO (Country of Origin):
DE

Siemens 5SD7483 Series Surge Arrester, 40kA Maximum Surge Current, 3.7kV Voltage Protection Rating - 5SD7483-0KK02


This surge arrestor is a vital surge protection device designed for use in electrical installations, particularly with isolated and earthed PV systems. It features compact dimensions of 90mm x 53mm x 66mm, making it suitable for DIN rail mounting. This device operates effectively within a temperature range of -40°C to +80°C, ensuring reliability in diverse environments.

Features & Benefits


• Achieves a maximum surge current of 40 kA for robust protection
• Offers a voltage protection rating of 3.7 kV against overvoltages
• Designed for single-phase systems to enhance compatibility
• Utilises a durable PA 6.6 enclosure for longevity
• Compatible with a variety of conductor sizes for flexible installation
• Supports discharge currents of 15 kA at 8/20 μs to manage surges effectively

Applications


• Utilised in electrical installations for effective indoor lightning protection
• Suitable for PV systems where electrical surge protection is critical
• Ideal for use in automation and industrial requiring robust surge arrestor specifications
• Used with installations requiring compliance with IEC 61643-31 standards

What is the importance of the maximum surge current rating?


The maximum surge current rating of 40 kA is essential as it determines the device's ability to handle high surge events, protecting sensitive electrical equipment from damage caused by voltage spikes.

How does the voltage protection rating contribute to safety?


With a voltage protection rating of 3.7 kV, it safeguards downstream electrical systems from overvoltages, reducing the risk of failures and extending equipment life in the installation.

What types of conductors can be used with this device?


The device accepts a wide range of conductor sizes, including finely stranded conductors from 1.5mm² to 25mm² and rigid conductors up to 35mm², allowing for flexible installation options to meet specific electrical requirements.

How is the device mounted, and what installation considerations are there?


This system is designed for DIN rail mounting, which simplifies installation in control panels and ensures it occupies minimal space. It's crucial to adhere to the tightening torque specifications of 3 to 4.5 N·m for secure connections.

What are the implications of the operating temperature range?


The operating temperature range of -40°C to +80°C indicates its capability to function in extreme conditions, ensuring consistent performance and reliability in various environmental settings.

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