Price of PartsINDUSTRIAL PRICE INDEX
Siemens

6ES5-951-7LB21

3 sellers — below our five-seller verification bar

Market snapshot

Prices updated 10 Aug 2026 · next refresh 10 Sep
$299
Low
$463
High
Standard Exchange Industry — $299PLC Direct — $352Radwell.com — $463Standard Exchange IndustryStandard Excha…$299PLC DirectPLC Direct$352 · MEDIANRadwell.comRadwell.com$463

Median $352 · 3 sellers · $52.68 below median at the lowest

$ Compare your quote against 3 current asking prices.

Asking prices for the exact catalog number 6ES5-951-7LB21 currently range from $299 to $463 across 3 sellers, observed 10 Aug 2026. Prices are published seller asking prices; shipping, taxes and negotiated trade pricing are not included.

Current listings

3 SELLERS · SORTED BY PRICE
SellerPricevs medianListing
Standard Exchange Industry $299.32-15% View offer
PLC Direct $352.00· View offer
Radwell.com $462.56+31% View offer

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Variants and similar numbers

VERIFY BEFORE ORDERING
Catalog numberRelationshipSellersMedianvs this part
6ES5-951-7LD21one character apart3$618+76%

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 6ES5-951-7LB21 cost?

As of 10 Aug 2026, the Siemens 6ES5-951-7LB21 is listed from $299 to $463 across 3 sellers. The median asking price is $352. Prices are published seller asking prices and are refreshed monthly.

Who sells the 6ES5-951-7LB21?

3 sellers currently list the 6ES5-951-7LB21, including Standard Exchange Industry, PLC Direct, Radwell.com. 3 of them are specialist industrial distributors. The lowest current asking price is $299 from Standard Exchange Industry.

Why do 6ES5-951-7LB21 prices vary so much?

The highest asking price for the 6ES5-951-7LB21 is 1.5× 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.