Siemens SENTRON 5SY8 MCB, 4P, 40A Curve C, 400V AC, 60V DC, 25 kA Breaking Capacity

Subtotal (1 unit)*

£284.99

(exc. VAT)

£341.99

(inc. VAT)

Add to Basket
Select or type quantity
Temporarily out of stock
  • 999,999,999 unit(s) shipping from 22 December 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per unit
1 +£284.99

*price indicative

RS Stock No.:
610-568
Mfr. Part No.:
5SY8640-7
Brand:
Siemens
Find similar products by selecting one or more attributes.
Select all

Brand

Siemens

Number of Poles

4

Current Rating

40A

Tripping Characteristics

Type C

Rated AC Voltage

400V

Rated DC Voltage

60V

Breaking Capacity at Maximum Voltage Rating

25 kA

Range

SENTRON

Series

5SY8

COO (Country of Origin):
DE
The Siemens Miniature Circuit Breaker is designed for high-efficiency operation in various applications, accommodating a three-phase plus neutral system. This advanced model assures superior protection with its C40 tripping characteristic, ideal for managing electrical loads with precision. Built to withstand challenging environments, the device features a robust mechanical design and a broad operational temperature range, ensuring reliability in both commercial and industrial settings. The circuit breaker not only meets stringent international standards but also excels in providing touch protection and ease of installation. Its versatile connectivity options enhance flexibility and usability, making this product a cornerstone of modern electrical infrastructure.

Offers exceptional overvoltage protection suited for industrial environments
Designed for easy installation on standard DIN rails
Boasts a mechanical service life of up to 10000 operating cycles
Features halogen-free and silicon-free construction materials for added safety
Includes properties that comply with EN 60204-1 for main switch applications
Equipped with neutral conductor switching for enhanced functionality
Supports a wide range of conductor cross-sections for versatile connections
Engineered to maintain high operational performance in extreme temperatures
Provides a reliable breaking capacity that meets rigorous international standards

Related links