Siemens

6SE7021-3TB51

Name: 6SE7021-3TB51
Brand: Siemens

3 sellers — below our five-seller verification bar

Market snapshot

Prices updated 20 Sep 2026 · next refresh 21 Oct

$2,887

Low

$3,137

High

Median $2,970 · 3 sellers · $82.50 below median at the lowest

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$ Compare your quote against 3 current asking prices.

Asking prices for the exact catalog number 6SE7021-3TB51 currently range from $2,887 to $3,137 across 3 sellers, observed 20 Sep 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

Seller	Condition	Price	vs median	Listing
Shop.adegis.com	USED / REFURB	$2,887.22	-3%	View offer
Automation Warehouse	NEW	$2,969.72	·	View offer
CJS Automation	not stated	$3,136.58	+6%	View offer

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Condition

AS STATED BY SELLERS

New	1
Used / refurbished	1
Not stated	1

Most industrial listings do not state condition — treat unstated as unknown, not as new. Across 666 comparable parts across the index, used and refurbished units are listed at a median 83% 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 number	Relationship	Sellers	Median	vs this part
6SE7021-3TP50	one character apart	10	$1,888	-36%
6SE7021-3TB61	one character apart	9	$2,406	-19%
6SE7021-0TA51	one character apart	6	$2,401	-19%
6SE7021-8TB61	one character apart	5	$4,031	+36%
6SE7021-3EB61	one character apart	3	$3,224	+9%
6SE7021-8TB51	one character apart	2	$3,710	+25%
6SE7021-8TB31	one character apart	2	$3,023	+2%

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 20 Sep 2026, the Siemens 6SE7021-3TB51 is listed from $2,887 to $3,137 across 3 sellers. The median asking price is $2,970. 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, Automation Warehouse, CJS Automation. 3 of them are specialist industrial distributors. The lowest current asking price is $2,887 from Shop.adegis.com.