Siemens, 5SD Surge Protection Device 300 V Maximum Voltage Rating 50kA Maximum Surge Current Surge Protection Device

View all Surge Suppressor Units

Subtotal (1 unit)*

£355.68

(exc. VAT)

£426.82

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 08 December 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£355.68

*price indicative

RS Stock No.:
160-157
Mfr. Part No.:
5SD7443-8KK21
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Suppressor Type

Surge Protection Device

Maximum Voltage Rating

300 V

Mounting Type

Push-Fit

Maximum Surge Current

50kA

Series

5SD

COO (Country of Origin):
DE
The Siemens innovative surge protection device is engineered to shield your electrical systems from transient overvoltage events. Combining advanced technology with a robust design, it is ideal for applications requiring high protection standards. With a three-pole configuration, this device accommodates TNC installations seamlessly on a 40mm busbar. Its compliance with IEC standards ensures reliability and safety, making it perfect for both residential and commercial settings. Built to endure diverse operating conditions, it features a durable enclosure material, extensive humidity tolerance, and a remarkable operational temperature range. This surge protector not only meets but exceeds the stringent requirements for lightning and surge protection, offering peace of mind for your electrical infrastructure.

Designed for TNC distribution systems use
High surge tolerance with up to 20 kA
Durable Durethan enclosure for protection
Remote signalling for effective surge monitoring
Compact dimensions for easy system integration

Related links