Price of PartsINDUSTRIAL PRICE INDEX
Siemens

6ES5-943-7UB21

2 sellers — below our five-seller verification bar

Market snapshot

Prices updated 10 Aug 2026 · next refresh 10 Sep
$199
Low
$725
High
Aeliya Marine — $199PLC Direct — $725Aeliya MarineAeliya Marine$199 · MEDIANPLC DirectPLC Direct$725

Median $462 · 2 sellers · $263 below median at the lowest

$ Compare your quote against 2 current asking prices.

Asking prices for the exact catalog number 6ES5-943-7UB21 currently range from $199 to $725 across 2 sellers, observed 10 Aug 2026. Prices are published seller asking prices; shipping, taxes and negotiated trade pricing are not included.

Current listings

2 SELLERS · SORTED BY PRICE
SellerPricevs medianListing
Aeliya Marine $198.51-57% View offer
PLC Direct $724.62+57% View offer

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Variants and similar numbers

VERIFY BEFORE ORDERING
Catalog numberRelationshipSellersMedianvs this part
6ES5-942-7UB11one character apart9$499+8%
6ES5-941-7UB11one character apart4$747+62%
6ES5-943-7UA11one character apart3$208-55%

These are different products that read almost identically on a purchase order. Google groups them together; we do not. Confirm the exact suffix against the nameplate before ordering.

Frequently asked

How much does a 6ES5-943-7UB21 cost?

As of 10 Aug 2026, the Siemens 6ES5-943-7UB21 is listed from $199 to $725 across 2 sellers. The median asking price is $462. Prices are published seller asking prices and are refreshed monthly.

Who sells the 6ES5-943-7UB21?

2 sellers currently list the 6ES5-943-7UB21, including Aeliya Marine, PLC Direct. 2 of them are specialist industrial distributors. The lowest current asking price is $199 from Aeliya Marine.

Why do 6ES5-943-7UB21 prices vary so much?

The highest asking price for the 6ES5-943-7UB21 is 3.7× 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.