3RT2028-2AC20
power contactor, AC-3e/AC-3, 38 A, 18.5 kW / 400 V, 3-pole, 24 V AC, 50/60 Hz, auxiliary contacts: 1 NO + 1 NC, spring-loaded terminal, size: S0
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
£63.00
Est. shipping: October 21 2026
View all options and prices (8)
| Condition | Warehouse | Stock | Price | |
|---|---|---|---|---|
|
New Sealed
Full 24 months warranty Est. shipping: October 21 2026 |
WM85-3R | Enquire now | £63.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: December 07 2026 |
WM97-3R | Enquire now | £66.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 21 2026 |
WM71-3R | Enquire now | £68.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 28 2026 |
WM66-3R | Enquire now | £69.50 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 21 2026 |
WM92-3R | Enquire now | £70.00 | Add to Cart |
|
New Sealed
Full 24 months warranty Est. shipping: October 21 2026 |
WM94-3R | Enquire now | £73.00 | 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 05 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 3RT2028-2AC20 is a three-pole power contactor designed for industrial electrical applications. It features a coil voltage of 24 V AC and is capable of switching loads up to 18.5 kW at 400 V in the AC-3 category. The contactor includes one normally open (NO) and one normally closed (NC) auxiliary contact, with spring-type terminals for secure connections. It belongs to the SIRIUS 3RT contactor family, suitable for controlling motors up to 250 kW, and is available in size S0.
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