3RU2126-1GB0
Overload relay 4.5...6.3 A Thermal For motor protection Size S0, 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
£30.50
Est. shipping: December 07 2026
View all options and prices (10)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
|
New Sealed
Full 24 months warranty Est. shipping: December 07 2026 |
WM97-3R | Enquire now | £30.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 22 2026 |
WM92-3R | Enquire now | £32.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 22 2026 |
WM71-3R | Enquire now | £32.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 29 2026 |
WM66-3R | Enquire now | £32.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 22 2026 |
WM94-3R | Enquire now | £35.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 22 2026 |
WM85-3R | Enquire now | £36.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 01 2026 |
WM22-3R | Enquire now | - | Get Quote |
|
New Sealed
Full 24 months warranty Est. shipping: October 05 2026 |
WM59-3R | Enquire now | - | Get Quote |
|
New Sealed
Full 24 months warranty Est. shipping: October 12 2026 |
WM62-3R | Enquire now | - | Get Quote |
|
New Sealed
Full 24 months warranty Est. shipping: October 12 2026 |
WM76-3R | Enquire now | - | Get Quote |
Condition: New
Priced on Request
Est. shipping: September 30 2026
View all options and prices (4)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
|
New In Open Original Box
Full 12 months warranty Est. shipping: September 30 2026 |
WM19-3R | Enquire now | - | Get Quote |
|
New Without Original Box
Full 12 months warranty Est. shipping: October 01 2026 |
WM25-3R | Enquire now | - | Get Quote |
|
New
Full 12 months warranty Est. shipping: October 05 2026 |
WM44-3R | 20+ in stock | - | Get Quote |
|
New
Full 12 months warranty Est. shipping: October 05 2026 |
WM61-3R | Enquire now | - | Get Quote |
Condition: Used
Priced on Request
Est. shipping: October 05 2026
Product Overview:
The 3RU2126-1GB0 is a thermal overload relay designed for motor protection. It features two auxiliary contacts and an adjustable current range of 4.5 to 6.3 amperes. The relay is part of the SIRIUS 3RU2 series and is suitable for use with size S0 contactors, providing reliable overload protection in various industrial applications.
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