3RU2146-4KB0
Overload relay 57...75 A Thermal For motor protection Size S3, Class 10 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset
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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
£71.50
Est. shipping: December 07 2026
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| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
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New Sealed
Full 24 months warranty Est. shipping: December 07 2026 |
WM97-3R | Enquire now | £71.50 | Add to Cart |
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New Sealed
Full 24 months warranty Est. shipping: October 22 2026 |
WM92-3R | Enquire now | £74.00 | Add to Cart |
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New Sealed
Full 24 months warranty Est. shipping: October 22 2026 |
WM94-3R | Enquire now | £75.50 | Add to Cart |
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New Sealed
Full 24 months warranty Est. shipping: October 29 2026 |
WM66-3R | Enquire now | £78.00 | Add to Cart |
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New Sealed
Full 24 months warranty Est. shipping: October 22 2026 |
WM71-3R | Enquire now | £78.50 | Add to Cart |
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New Sealed
Full 24 months warranty Est. shipping: October 22 2026 |
WM85-3R | Enquire now | £84.00 | Add to Cart |
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New Sealed
Full 24 months warranty Est. shipping: October 01 2026 |
WM22-3R | Enquire now | - | Get Quote |
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New Sealed
Full 24 months warranty Est. shipping: October 05 2026 |
WM44-3R | 10+ in stock | - | Get Quote |
Condition: New
£130.00
Est. shipping: October 05 2026
View all options and prices (5)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
|
New
Full 12 months warranty Est. shipping: October 05 2026 |
WM89-3R | 5+ in stock | £130.00 | Add to Cart |
|
New
Full 12 months warranty Est. shipping: October 05 2026 |
WM44-3R | 5+ in stock | - | Get Quote |
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New
Full 12 months warranty Est. shipping: October 05 2026 |
WM61-3R | Enquire now | - | Get Quote |
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New
Full 12 months warranty Est. shipping: October 05 2026 |
WM59-3R | Enquire now | - | Get Quote |
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New
Full 12 months warranty Est. shipping: November 09 2026 |
WM74-3R | Enquire now | - | Get Quote |
Condition: Used
Priced on Request
Est. shipping: October 05 2026
Product Overview:
The 3RU2146-4KB0 is a thermal overload relay designed for motor protection. It is suitable for mounting onto contactors and features a screw terminal connection for both the main and auxiliary circuits. This overload relay is rated for currents between 57 and 75 A, classified as Size S3 with a Class 10 protection level. It offers automatic reset functionality and is constructed to withstand shock resistance according to IEC 60068-2-27 standards, with a recovery time of approximately 11 ms after overload trip. The device provides surge voltage resistance up to 8 kV for safe isolation in grounded star point networks.
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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