Siemens 5SD7443-8KK21

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Product details

The Siemens 5SD7443-8KK21 is a combined surge arrester designed for use in electrical installations. It meets the requirements of types 1 and 2 and is suitable for demand classes B and C. With an input voltage of 230 volts and a maximum impulse current rating of 12.5 kA, this device provides a reliable protection solution for TNC systems. The 3-pole version with a 3+0 configuration is specifically designed for 40 mm busbar systems, allowing for easy integration into existing systems. Additionally, the combined surge arrester features a remote indication for easy monitoring of the device status. Manufactured in Germany, the 5SD7443-8KK21 is a product designed for quality and durability.

  • Input voltage of 230 volts for versatile applications
  • Maximum impulse current rating of 12.5 kA for high protection
  • 3-pole version with 3+0 configuration for TNC systems
  • Includes remote indication for easy monitoring of device status.

Key specifications

input voltage
230 V
Scope of delivery
Combined arrester type 1 + 2 requirement class B+C, UC 300V Iimp=12.5kA 3-pole, 3+0 circuit for TNC systems for 40mm busbar system with remote display
Item number
31980303

General information

Manufacturer
Siemens
Category
Relays
Manufacturer no.
5SD74438KK21
Release date
24.10.2022

Relay properties

input voltage
230 V
Manufacturer Type
5SD7443-8KK21

Origin

Country of origin
Germany

Sustainability

Manufacturer commitment
RE100, SBTi

Voluntary climate contribution

Manufacturer compensation
According to RE100, the manufacturer Siemens fully compensates for its energy consumption, leading to a reduction in emissions.
CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
Combined arrester type 1 + 2 requirement class B+C, UC 300V Iimp=12.5kA 3-pole, 3+0 circuit for TNC systems for 40mm busbar system with remote display

30-day right of return
24 Months Warranty (Bring-in)

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Relays» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • 3.Eltako
    0.2 %
  • 5.Eaton
    0.3 %
  • 5.Siemens
    0.3 %
  • 7.Schalk
    0.6 %
  • 8.Hager
    0.8 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Siemens
    Not enough data
  • 1.Hager
    0 days
  • 2.Shelly
    2 days
  • ABB
    Not enough data
  • Aqara
    Not enough data

Return rate

How often is a product of this brand in the «Relays» category returned?

Source: Digitec Galaxus
  • 7.Hager
    2.5 %
  • 9.Finder
    3.1 %
  • 10.Siemens
    3.7 %
  • 11.Eltako
    4 %
  • 12.Aqara
    12.4 %
Source: Digitec Galaxus