6SE6440-2UD21-5AA1
Market snapshot
Prices updated 9 Oct 2026 · next refresh 9 NovMedian $418 · 19 sellers · $219 below median at the lowest
Asking prices for the exact catalog number 6SE6440-2UD21-5AA1 currently range from $199 to $880 across 19 sellers, observed 9 Oct 2026. Distributor product page: nexinstrument.com. Prices are published seller asking prices; shipping, taxes and negotiated trade pricing are not included.
Current listings
19 SELLERS · SORTED BY PRICE| Seller | Condition | Price | vs median | Listing |
|---|---|---|---|---|
| inprosols | not stated | $199.00 | -52% | View offer |
| eBay - yulidosajkhdkh | NEW | $215.82 | -48% | View offer |
| eBay - youcu-plasma-partner | NEW | $224.31 | -46% | View offer |
| eBay - yaotaicnc78 | NEW | $226.00 | -46% | View offer |
| eBay - autocore-66 | not stated | $247.06 | -41% | View offer |
| eBay | not stated | $294.99 | -29% | View offer |
| eBay - eeautohh | not stated | $303.85 | -27% | View offer |
| eBay - superautotech | NEW | $339.34 | -19% | View offer |
| Standard Exchange Industry | not stated | $358.64 | -14% | View offer |
| Bonanza - MI Focus' booth | not stated | $418.31 | · | View offer |
| ddpartssolution.com | not stated | $441.00 | +5% | View offer |
| PLCpartssolution | not stated | $450.00 | +8% | View offer |
| eBay - radcncplcsolutions | not stated | $468.12 | +12% | View offer |
| KOEED | not stated | $482.49 | +15% | View offer |
| Williams Automation | not stated | $570.00 | +36% | View offer |
| cnctoolsllc.com | NEW | $600.00 | +43% | View offer |
| Cyrus Industrial | not stated | $695.00 | +66% | View offer |
| Superior Lighting | not stated | $756.58 | +81% | View offer |
| Automation Pioneer | not stated | $880.00 | +110% | View offer |
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Condition
AS STATED BY SELLERS| New | 5 |
| Not stated | 14 |
Variants and similar numbers
VERIFY BEFORE ORDERING| Catalog number | Relationship | Sellers | Median | vs this part |
|---|---|---|---|---|
| 6SE6440-2UD25-5CA1 | one character apart | 19 | $415 | -1% |
| 6SE6440-2UD17-5AA1 | one character apart | 12 | $461 | +10% |
| 6SE6440-2UD21-1AA1 | one character apart | 6 | $281 | -33% |
| 6SE6440-2UD31-5DA1 | one character apart | 6 | $2,535 | +506% |
| 6SE6440-2UD15-5AA1 | one character apart | 3 | $711 | +70% |
| 6SE6440-2UD27-5CA1 | one character apart | 3 | $840 | +101% |
| 6SE6440-2UE21-5CA1 | one character apart | 2 | $2,054 | +391% |
Frequently asked
How much does a 6SE6440-2UD21-5AA1 cost?
As of 9 Oct 2026, the Siemens 6SE6440-2UD21-5AA1 is listed from $199 to $880 across 19 sellers. The median asking price is $418. Prices are published seller asking prices and are refreshed monthly.
Who sells the 6SE6440-2UD21-5AA1?
19 sellers currently list the 6SE6440-2UD21-5AA1, including inprosols, eBay - yulidosajkhdkh, eBay - youcu-plasma-partner. 11 of them are specialist industrial distributors. The lowest current asking price is $199 from inprosols.
Why do 6SE6440-2UD21-5AA1 prices vary so much?
The highest asking price for the 6SE6440-2UD21-5AA1 is 4.4× the lowest. Industrial parts trade in a market where new surplus, refurbished stock and list-price sellers coexist without a shared price reference, so identical catalog numbers are listed at very different prices.
