5SY4303-5
Miniature circuit breaker 400 V 10kA, 3-pole, A, 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
£52.00
Est. shipping: October 27 2026
View all options and prices (8)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
|
New Sealed
Full 24 months warranty Est. shipping: October 27 2026 |
WM92-5S | Enquire now | £52.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: December 07 2026 |
WM97-5S | Enquire now | £56.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 27 2026 |
WM71-5S | Enquire now | £59.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 27 2026 |
WM85-5S | Enquire now | £63.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: November 03 2026 |
WM66-5S | Enquire now | £63.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 27 2026 |
WM94-5S | Enquire now | £66.00 | 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 5SY4303-5 is a miniature circuit breaker designed for electrical systems operating at 230/400VAC. It features a three-pole configuration with a rated current of 3A and a breaking capacity of 10kA. The circuit breaker is suitable for DIN rail mounting and has a depth of approximately 70 mm. It provides reliable protection for electrical circuits by automatically disconnecting power in case of overloads or short circuits.
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