5SY4503-8
Miniature circuit breaker 230 V 10 kA, 1+N-pole, D, 3 A, D=70 mm
Image for illustration purposes only.
If you're unsure whether this part is a perfect match, please contact us.
New Sealed — New and unused, supplied in original manufacturer packaging.
New — New and unused. Original manufacturer packaging may be opened, missing or replaced.
Refurbished — Professionally inspected, tested and restored to full working condition.
Used — Previously used, inspected and tested as fully operational.
Condition: New Sealed
£26.50
Est. shipping: November 24 2026
View all options and prices (8)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
|
New Sealed
Full 24 months warranty Est. shipping: November 24 2026 |
WM92-5S | Enquire now | £26.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: December 07 2026 |
WM97-5S | Enquire now | £26.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: November 24 2026 |
WM71-5S | Enquire now | £28.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: November 24 2026 |
WM85-5S | Enquire now | £29.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: December 01 2026 |
WM66-5S | Enquire now | £30.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: November 24 2026 |
WM94-5S | Enquire now | £30.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 02 2026 |
WM44-5S | 10+ in stock | - | Get Quote |
|
New Sealed
Full 24 months warranty Est. shipping: October 05 2026 |
WM59-5S | Enquire now | - | Get Quote |
Condition: New
Priced on Request
Est. shipping: October 02 2026
Condition: Used
Priced on Request
Est. shipping: October 02 2026
Product Overview:
The 5SY4503-8 is a miniature circuit breaker designed for both AC and DC applications, rated at 230 V AC and 72 V DC. It features a single-pole plus neutral (1+N) configuration with a current rating of 3 A and a D-type trip characteristic. The device provides a breaking capacity of 10 kA and is suitable for use on DIN rails. It is engineered to protect electrical circuits by automatically disconnecting power in case of overloads or short circuits, ensuring reliable circuit protection in various electrical systems.
Full 12 months warranty
Siemens is a global leader in industrial automation, digitalisation, and electrification, offering products such as PLCs, drives, industrial robots, and process control systems. Known for innovation and sustainability, Siemens’ technologies enhance efficiency, safety, and performance across industries like manufacturing, energy, and healthcare.
***CJS Automation is NOT an authorised distributor of Siemens***
Other Siemens Parts
Closest part codes available to buy online.
GB 
US 
DE 
DK 
ES 
FI 
FR 
IT 
NL 
NO 
PT 
SE