3RW4038-1TB04
SIRIUS soft starter S2 72 A, 37 kW/400 V, 40 °C 200-480 V AC, 24 V AC/DC Screw terminals Thermistor motor protection
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
£725.50
Est. shipping: October 20 2026
View all options and prices (12)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
|
New Sealed
Full 24 months warranty Est. shipping: October 20 2026 |
WM92-3R | Enquire now | £725.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 20 2026 |
WM94-3R | Enquire now | £780.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 27 2026 |
WM66-3R | Enquire now | £780.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: December 07 2026 |
WM97-3R | Enquire now | £814.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 20 2026 |
WM71-3R | Enquire now | £846.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 20 2026 |
WM85-3R | Enquire now | £848.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: September 29 2026 |
WM5-3R | Enquire now | - | Get Quote |
|
New Sealed
Full 24 months warranty Est. shipping: September 29 2026 |
WM22-3R | Enquire now | - | Get Quote |
|
New Sealed
Full 24 months warranty Est. shipping: September 29 2026 |
WM69-3R | Enquire now | - | Get Quote |
|
New Sealed
Full 24 months warranty Est. shipping: September 29 2026 |
WM75-3R | Enquire now | - | Get Quote |
|
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
View all options and prices (3)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
|
New
Full 12 months warranty Est. shipping: October 02 2026 |
WM44-3R | 10+ in stock | - | Get Quote |
|
New
Full 12 months warranty Est. shipping: October 01 2026 |
WM61-3R | Enquire now | - | Get Quote |
|
New
Full 12 months warranty Est. shipping: October 06 2026 |
WM74-3R | Enquire now | - | Get Quote |
Condition: Used
Priced on Request
Est. shipping: October 02 2026
Product Overview:
The 3RW4038-1TB04 is a soft starter designed for three-phase applications with a voltage rating of 400V and a power capacity of 37 kW. It features integrated bypass contactors and thyristor technology to facilitate smooth motor startup and protection. Suitable for controlling motor operations in various industrial settings, this device provides reliable soft starting capabilities to enhance equipment longevity and operational efficiency.
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.