3RV2142-4KA10
circuit breaker size S3 for motor protection Class 10 with overload relay function thermal release 57...75 A short-circuit release 975 A screw terminal increased switching capacity 100 kA
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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
£222.50
Est. shipping: October 21 2026
View all options and prices (8)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
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New Sealed
Full 24 months warranty Est. shipping: October 21 2026 |
WM71-3R | Enquire now | £222.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 21 2026 |
WM92-3R | Enquire now | £233.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 21 2026 |
WM85-3R | Enquire now | £236.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 28 2026 |
WM66-3R | Enquire now | £240.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: December 07 2026 |
WM97-3R | Enquire now | £244.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 21 2026 |
WM94-3R | Enquire now | £250.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 02 2026 |
WM44-3R | 10+ in stock | - | Get Quote |
|
New Sealed
Full 24 months warranty Est. shipping: October 05 2026 |
WM59-3R | 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 3RV2142-4KA10 is a motor protection circuit breaker designed for motor protection applications. It features a size S3 configuration with overload relay functionality, suitable for currents between 57 and 75 A, and provides a rated short-circuit breaking capacity of up to 975 A at 400 V. The breaker is equipped with screw terminals and is compatible with grounded parts at voltages up to 690 V. It offers multiple pole options (typically three poles) and is suitable for use in various industrial motor protection setups, ensuring reliable overload and short-circuit protection.
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***
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