5SY4303-7
Miniature circuit breaker 400 V 10 kA, 3-pole, C, 3 A, D=70 mm
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
£33.50
Est. shipping: October 29 2026
View all options and prices (9)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
|
New Sealed
Full 24 months warranty Est. shipping: October 29 2026 |
WM85-5S | Enquire now | £33.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 29 2026 |
WM71-5S | Enquire now | £33.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 29 2026 |
WM92-5S | Enquire now | £36.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 29 2026 |
WM94-5S | Enquire now | £40.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: November 05 2026 |
WM66-5S | Enquire now | £41.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: December 07 2026 |
WM97-5S | Enquire now | £50.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 01 2026 |
WM22-5S | Enquire now | - | Get Quote |
|
New Sealed
Full 24 months warranty Est. shipping: October 05 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 05 2026
View all options and prices (4)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
|
New
Full 12 months warranty Est. shipping: October 05 2026 |
WM44-5S | 20+ in stock | - | Get Quote |
|
New
Full 12 months warranty Est. shipping: October 05 2026 |
WM61-5S | Enquire now | - | Get Quote |
|
New
Full 12 months warranty Est. shipping: October 05 2026 |
WM59-5S | Enquire now | - | Get Quote |
|
New
Full 12 months warranty Est. shipping: November 09 2026 |
WM74-5S | Enquire now | - | Get Quote |
Condition: Used
Priced on Request
Est. shipping: October 05 2026
Product Overview:
The 5SY4303-7 is a three-pole miniature circuit breaker designed for electrical protection applications. It features a rated current of 3A and a breaking capacity of 10 kA, suitable for use in various power distribution systems. The breaker has a compact D=70 mm design, a release characteristic of type C, and is rated for operation at 400 V AC and 60 V DC. Its technical specifications make it an effective component for managing and safeguarding electrical 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.