Price of PartsINDUSTRIAL PRICE INDEX
Siemens

6SE7021-3TB51

3 sellers — below our five-seller verification bar

Market snapshot

Prices updated 9 Oct 2026 · next refresh 9 Nov
$3,029
Low
$6,171
High
Shop.adegis.com — $3,029MRO Electric — $4,927Radwell.com — $6,171Shop.adegis.comShop.adegis.com$3,029MRO ElectricMRO Electric$4,927 · MEDIANRadwell.comRadwell.com$6,171

Median $4,927 · 3 sellers · $1,898 below median at the lowest

$ Compare your quote against 3 current asking prices.

Asking prices for the exact catalog number 6SE7021-3TB51 currently range from $3,029 to $6,171 across 3 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

3 SELLERS · SORTED BY PRICE
SellerConditionPricevs medianListing
Shop.adegis.comUSED / REFURB $3,029.40-39% View offer
MRO Electricnot stated $4,927.00· View listing
Radwell.comnot stated $6,171.00+25% View offer

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Condition

AS STATED BY SELLERS
Used / refurbished1
Not stated2

Most industrial listings do not state condition — treat unstated as unknown, not as new. Across 864 comparable parts across the index, used and refurbished units are listed at a median 85% of the new price. These are asking prices, not sold prices, and the spread around that median is wide. Ask the seller to state condition in writing before comparing quotes.

Variants and similar numbers

VERIFY BEFORE ORDERING
Catalog numberRelationshipSellersMedianvs this part
6SE7021-8TB61one character apart7$3,883-21%
6SE7021-0TA51one character apart6$2,959-40%
6SE7021-3TB61one character apart6$3,109-37%
6SE7021-8TB51one character apart6$2,180-56%
6SE7021-3TP50one character apart6$1,390-72%
6SE7021-3EB61one character apart3$1,971-60%
6SE7021-3TB21one character apart2$3,824-22%
6SE7021-8TB31one character apart2$3,062-38%

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 6SE7021-3TB51 cost?

As of 9 Oct 2026, the Siemens 6SE7021-3TB51 is listed from $3,029 to $6,171 across 3 sellers. The median asking price is $4,927. Prices are published seller asking prices and are refreshed monthly.

Who sells the 6SE7021-3TB51?

3 sellers currently list the 6SE7021-3TB51, including Shop.adegis.com, MRO Electric, Radwell.com. 3 of them are specialist industrial distributors. The lowest current asking price is $3,029 from Shop.adegis.com.

Why do 6SE7021-3TB51 prices vary so much?

The highest asking price for the 6SE7021-3TB51 is 2.0× 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.