6SE6420-2UD21-1AA1
Market snapshot
Prices updated 9 Oct 2026 · next refresh 9 NovMedian $501 · 4 sellers · $226 below median at the lowest
Asking prices for the exact catalog number 6SE6420-2UD21-1AA1 currently range from $275 to $736 across 4 sellers, observed 9 Oct 2026. Prices are published seller asking prices; shipping, taxes and negotiated trade pricing are not included.
Current listings
4 SELLERS · SORTED BY PRICE| Seller | Price | vs median | Listing |
|---|---|---|---|
| Great American Equipment Company | $275.00 | -45% | View offer |
| PLCHardware.com | $442.00 | -12% | View offer |
| CirEle | $559.26 | +12% | View offer |
| PLC Direct | $735.88 | +47% | View offer |
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Variants and similar numbers
VERIFY BEFORE ORDERING| Catalog number | Relationship | Sellers | Median | vs this part |
|---|---|---|---|---|
| 6SE6420-2UD21-5AA1 | one character apart | 4 | $576 | +15% |
| 6SE6420-2UC21-1BA1 | one character apart | 3 | $501 | +0% |
| 6SE6420-2UD31-1CA1 | one character apart | 2 | $954 | +91% |
| 6SE6420-2UD21-5AA0 | one character apart | 2 | $552 | +10% |
Frequently asked
How much does a 6SE6420-2UD21-1AA1 cost?
As of 9 Oct 2026, the Siemens 6SE6420-2UD21-1AA1 is listed from $275 to $736 across 4 sellers. The median asking price is $501. Prices are published seller asking prices and are refreshed monthly.
Who sells the 6SE6420-2UD21-1AA1?
4 sellers currently list the 6SE6420-2UD21-1AA1, including Great American Equipment Company, PLCHardware.com, CirEle. 4 of them are specialist industrial distributors. The lowest current asking price is $275 from Great American Equipment Company.
Why do 6SE6420-2UD21-1AA1 prices vary so much?
The highest asking price for the 6SE6420-2UD21-1AA1 is 2.7× 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.
