Siemens, 5SD Surge Protection Device 300V Maximum Voltage Rating 50 kA Maximum Surge Current Surge Protection Device
- RS Stock No.:
- 160-157
- Mfr. Part No.:
- 5SD7443-8KK21
- Brand:
- Siemens
Subtotal (1 unit)*
£352.85
(exc. VAT)
£423.42
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 22 June 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £352.85 |
*price indicative
- RS Stock No.:
- 160-157
- Mfr. Part No.:
- 5SD7443-8KK21
- Brand:
- Siemens
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Siemens | |
| Suppressor Type | Surge Protection Device | |
| Product Type | Surge Protection Device | |
| Maximum Voltage | 300V | |
| Mount Type | Push-in | |
| Maximum Surge Current | 50kA | |
| Series | 5SD | |
| Minimum Operating Temperature | -40°C | |
| Maximum Operating Temperature | 85°C | |
| Length | 47mm | |
| Standards/Approvals | ESD S20.20:2021 Electrostatic Control Standard, RoHS, ANSI | |
| Height | 224mm | |
| Depth | 74mm | |
| Hazardous Area Certification | No | |
| Select all | ||
|---|---|---|
Brand Siemens | ||
Suppressor Type Surge Protection Device | ||
Product Type Surge Protection Device | ||
Maximum Voltage 300V | ||
Mount Type Push-in | ||
Maximum Surge Current 50kA | ||
Series 5SD | ||
Minimum Operating Temperature -40°C | ||
Maximum Operating Temperature 85°C | ||
Length 47mm | ||
Standards/Approvals ESD S20.20:2021 Electrostatic Control Standard, RoHS, ANSI | ||
Height 224mm | ||
Depth 74mm | ||
Hazardous Area Certification No | ||
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
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