3RU2136-4BB0
Overload relay 14...20 A Thermal For motor protection Size S2, Class 10 Contactor mounting Main circuit: Screw Auxiliary circuit: Screw Manual-Automatic-Reset
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
£36.00
Est. shipping: December 08 2026
View all options and prices (8)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
|
New Sealed
Full 24 months warranty Est. shipping: December 08 2026 |
WM97-3R | Enquire now | £36.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 23 2026 |
WM71-3R | Enquire now | £40.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 30 2026 |
WM66-3R | Enquire now | £41.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 23 2026 |
WM92-3R | Enquire now | £42.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 23 2026 |
WM94-3R | Enquire now | £43.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 23 2026 |
WM85-3R | Enquire now | £43.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 05 2026 |
WM44-3R | 10+ in stock | - | Get Quote |
|
New Sealed
Full 24 months warranty Est. shipping: October 06 2026 |
WM59-3R | Enquire now | - | Get Quote |
Condition: New
Priced on Request
Est. shipping: October 05 2026
Condition: Used
Priced on Request
Est. shipping: October 05 2026
Product Overview:
The 3RU2136-4BB0 is a thermal overload relay designed for mounting onto contactors. It features a screw terminal connection and provides overload protection for motors, with an adjustable current range from 14A to 20A. The relay is classified as size S2 with a contact rating of 3A and is suitable for motor applications up to 7.5 kW. It offers shock resistance according to IEC standards and typically includes automatic reset functionality.
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