PartHistory
Siemens / PLCs and I/O (SIMATIC)

6ES7421-1EL00-0AA0

PLCs and I/O (SIMATIC) family illustration
Recorded listings
124
Recorded quantity sold
7
Median recorded price
$658.49122 US-dollar records
Recorded price range
$251.00to $2157.75 USD
First listing start: 07 Mar 2018Last listing start: 06 Nov 2026

Recorded price history

USD
Recorded US-dollar price historyLinear price scale. Horizontal axis: listing start date. Vertical axis: recorded price in US dollars. Filled dots have recorded sales; open dots have no recorded sales. The oxide step line shows calendar-month medians, with gaps for missing months.0.001000.002000.003000.004000.00Mar 2018May 2020Jul 2022Sep 2024Nov 20262018-03-07: US$520.00; no sale recorded2018-05-17: US$520.00; no sale recorded2018-06-17: US$499.00; no sale recorded2018-07-20: US$499.00; no sale recorded2018-08-21: US$499.00; no sale recorded2018-09-25: US$499.00; no sale recorded2019-12-27: US$555.12; no sale recorded2020-03-20: US$518.68; no sale recorded2020-03-25: US$516.67; no sale recorded2020-05-05: US$796.50; no sale recorded2020-07-01: US$460.00; no sale recorded2020-09-11: US$660.00; no sale recorded2022-05-11: US$734.40; no sale recorded2022-05-12: US$785.03; no sale recorded2022-05-21: US$612.06; no sale recorded2022-07-26: US$324.00; no sale recorded2023-04-04: US$635.80; no sale recorded2023-05-30: US$529.00; sold recorded2023-07-15: US$629.00; no sale recorded2023-07-23: US$567.00; no sale recorded2023-10-16: US$635.90; sold recorded2023-10-23: US$630.20; no sale recorded2024-04-30: US$530.00; no sale recorded2024-07-12: US$635.55; no sale recorded2024-07-31: US$454.70; no sale recorded2024-08-02: US$1109.23; sold recorded2024-08-23: US$2157.75; no sale recorded2024-08-28: US$2157.75; no sale recorded2024-12-20: US$630.82; no sale recorded2024-12-20: US$630.81; sold recorded2025-02-08: US$1099.27; sold recorded2025-02-12: US$671.58; no sale recorded2025-02-20: US$532.33; sold recorded2025-02-27: US$630.80; sold recorded2025-03-31: US$544.77; no sale recorded2025-04-08: US$1074.50; no sale recorded2025-04-18: US$1137.93; no sale recorded2025-05-16: US$1068.76; no sale recorded2025-05-29: US$574.00; no sale recorded2025-06-05: US$1305.42; no sale recorded2025-06-06: US$1220.02; no sale recorded2025-06-10: US$1052.70; no sale recorded2025-07-02: US$1152.58; no sale recorded2025-07-03: US$1106.48; no sale recorded2025-07-05: US$630.77; no sale recorded2025-07-05: US$630.79; no sale recorded2025-07-05: US$630.76; no sale recorded2025-07-15: US$792.94; no sale recorded2025-07-17: US$763.63; no sale recorded2025-07-29: US$545.99; no sale recorded2025-08-04: US$1063.92; no sale recorded2025-08-05: US$1066.42; no sale recorded2025-08-08: US$596.70; no sale recorded2025-08-09: US$597.42; no sale recorded2025-08-11: US$722.90; no sale recorded2025-08-12: US$565.37; no sale recorded2025-08-14: US$453.70; no sale recorded2025-08-27: US$251.00; no sale recorded2025-08-29: US$598.49; no sale recorded2025-08-29: US$597.99; no sale recorded2025-08-30: US$1115.61; no sale recorded2025-09-18: US$597.88; no sale recorded2025-10-01: US$678.78; no sale recorded2025-10-14: US$702.11; no sale recorded2025-10-22: US$928.54; no sale recorded2025-11-05: US$725.49; no sale recorded2025-11-07: US$682.48; no sale recorded2025-11-10: US$1046.71; no sale recorded2025-11-15: US$560.58; no sale recorded2025-11-20: US$716.45; no sale recorded2025-11-25: US$642.60; no sale recorded2025-11-27: US$807.23; no sale recorded2025-11-28: US$660.31; no sale recorded2025-12-02: US$741.46; no sale recorded2025-12-10: US$1061.68; no sale recorded2025-12-13: US$453.80; no sale recorded2025-12-18: US$713.57; no sale recorded2025-12-22: US$656.98; no sale recorded2026-01-16: US$771.59; no sale recorded2026-01-23: US$1149.24; no sale recorded2026-01-26: US$480.16; no sale recorded2026-01-27: US$664.00; no sale recorded2026-01-28: US$660.31; no sale recorded2026-02-08: US$694.43; no sale recorded2026-02-09: US$1060.92; no sale recorded2026-02-19: US$500.49; no sale recorded2026-02-23: US$694.43; no sale recorded2026-02-26: US$694.43; no sale recorded2026-02-27: US$694.43; no sale recorded2026-03-02: US$694.43; no sale recorded2026-03-15: US$694.43; no sale recorded2026-03-16: US$694.43; no sale recorded2026-03-18: US$694.43; no sale recorded2026-03-19: US$694.43; no sale recorded2026-03-21: US$634.17; no sale recorded2026-03-27: US$664.00; no sale recorded2026-03-28: US$694.43; no sale recorded2026-04-08: US$694.43; no sale recorded2026-04-09: US$721.59; no sale recorded2026-04-11: US$1127.36; no sale recorded2026-04-13: US$624.99; no sale recorded2026-04-13: US$655.34; no sale recorded2026-04-13: US$1120.86; no sale recorded2026-04-15: US$710.07; no sale recorded2026-04-28: US$454.99; no sale recorded2026-04-29: US$504.90; no sale recorded2026-04-29: US$624.99; no sale recorded2026-05-08: US$689.06; no sale recorded2026-05-11: US$587.83; no sale recorded2026-05-14: US$1105.86; no sale recorded2026-05-20: US$680.09; no sale recorded2026-06-09: US$654.50; no sale recorded2026-06-10: US$655.00; no sale recorded2026-06-13: US$579.00; no sale recorded2026-06-17: US$652.44; no sale recorded2026-06-23: US$663.63; no sale recorded2026-07-10: US$710.07; no sale recorded2026-07-10: US$655.00; no sale recorded2026-09-17: US$652.44; no sale recorded2026-10-10: US$655.00; no sale recorded2026-11-06: US$593.86; no sale recorded2026-11-06: US$600.49; no sale recordedRecorded US-dollar price historyLinear price scale. Horizontal axis: listing start date. Vertical axis: recorded price in US dollars. Filled dots have recorded sales; open dots have no recorded sales. The oxide step line shows calendar-month medians, with gaps for missing months.0.001000.002000.003000.004000.00Mar 2018Jul 2022Nov 20262018-03-07: US$520.00; no sale recorded2018-05-17: US$520.00; no sale recorded2018-06-17: US$499.00; no sale recorded2018-07-20: US$499.00; no sale recorded2018-08-21: US$499.00; no sale recorded2018-09-25: US$499.00; no sale recorded2019-12-27: US$555.12; no sale recorded2020-03-20: US$518.68; no sale recorded2020-03-25: US$516.67; no sale recorded2020-05-05: US$796.50; no sale recorded2020-07-01: US$460.00; no sale recorded2020-09-11: US$660.00; no sale recorded2022-05-11: US$734.40; no sale recorded2022-05-12: US$785.03; no sale recorded2022-05-21: US$612.06; no sale recorded2022-07-26: US$324.00; no sale recorded2023-04-04: US$635.80; no sale recorded2023-05-30: US$529.00; sold recorded2023-07-15: US$629.00; no sale recorded2023-07-23: US$567.00; no sale recorded2023-10-16: US$635.90; sold recorded2023-10-23: US$630.20; no sale recorded2024-04-30: US$530.00; no sale recorded2024-07-12: US$635.55; no sale recorded2024-07-31: US$454.70; no sale recorded2024-08-02: US$1109.23; sold recorded2024-08-23: US$2157.75; no sale recorded2024-08-28: US$2157.75; no sale recorded2024-12-20: US$630.82; no sale recorded2024-12-20: US$630.81; sold recorded2025-02-08: US$1099.27; sold recorded2025-02-12: US$671.58; no sale recorded2025-02-20: US$532.33; sold recorded2025-02-27: US$630.80; sold recorded2025-03-31: US$544.77; no sale recorded2025-04-08: US$1074.50; no sale recorded2025-04-18: US$1137.93; no sale recorded2025-05-16: US$1068.76; no sale recorded2025-05-29: US$574.00; no sale recorded2025-06-05: US$1305.42; no sale recorded2025-06-06: US$1220.02; no sale recorded2025-06-10: US$1052.70; no sale recorded2025-07-02: US$1152.58; no sale recorded2025-07-03: US$1106.48; no sale recorded2025-07-05: US$630.77; no sale recorded2025-07-05: US$630.79; no sale recorded2025-07-05: US$630.76; no sale recorded2025-07-15: US$792.94; no sale recorded2025-07-17: US$763.63; no sale recorded2025-07-29: US$545.99; no sale recorded2025-08-04: US$1063.92; no sale recorded2025-08-05: US$1066.42; no sale recorded2025-08-08: US$596.70; no sale recorded2025-08-09: US$597.42; no sale recorded2025-08-11: US$722.90; no sale recorded2025-08-12: US$565.37; no sale recorded2025-08-14: US$453.70; no sale recorded2025-08-27: US$251.00; no sale recorded2025-08-29: US$598.49; no sale recorded2025-08-29: US$597.99; no sale recorded2025-08-30: US$1115.61; no sale recorded2025-09-18: US$597.88; no sale recorded2025-10-01: US$678.78; no sale recorded2025-10-14: US$702.11; no sale recorded2025-10-22: US$928.54; no sale recorded2025-11-05: US$725.49; no sale recorded2025-11-07: US$682.48; no sale recorded2025-11-10: US$1046.71; no sale recorded2025-11-15: US$560.58; no sale recorded2025-11-20: US$716.45; no sale recorded2025-11-25: US$642.60; no sale recorded2025-11-27: US$807.23; no sale recorded2025-11-28: US$660.31; no sale recorded2025-12-02: US$741.46; no sale recorded2025-12-10: US$1061.68; no sale recorded2025-12-13: US$453.80; no sale recorded2025-12-18: US$713.57; no sale recorded2025-12-22: US$656.98; no sale recorded2026-01-16: US$771.59; no sale recorded2026-01-23: US$1149.24; no sale recorded2026-01-26: US$480.16; no sale recorded2026-01-27: US$664.00; no sale recorded2026-01-28: US$660.31; no sale recorded2026-02-08: US$694.43; no sale recorded2026-02-09: US$1060.92; no sale recorded2026-02-19: US$500.49; no sale recorded2026-02-23: US$694.43; no sale recorded2026-02-26: US$694.43; no sale recorded2026-02-27: US$694.43; no sale recorded2026-03-02: US$694.43; no sale recorded2026-03-15: US$694.43; no sale recorded2026-03-16: US$694.43; no sale recorded2026-03-18: US$694.43; no sale recorded2026-03-19: US$694.43; no sale recorded2026-03-21: US$634.17; no sale recorded2026-03-27: US$664.00; no sale recorded2026-03-28: US$694.43; no sale recorded2026-04-08: US$694.43; no sale recorded2026-04-09: US$721.59; no sale recorded2026-04-11: US$1127.36; no sale recorded2026-04-13: US$624.99; no sale recorded2026-04-13: US$655.34; no sale recorded2026-04-13: US$1120.86; no sale recorded2026-04-15: US$710.07; no sale recorded2026-04-28: US$454.99; no sale recorded2026-04-29: US$504.90; no sale recorded2026-04-29: US$624.99; no sale recorded2026-05-08: US$689.06; no sale recorded2026-05-11: US$587.83; no sale recorded2026-05-14: US$1105.86; no sale recorded2026-05-20: US$680.09; no sale recorded2026-06-09: US$654.50; no sale recorded2026-06-10: US$655.00; no sale recorded2026-06-13: US$579.00; no sale recorded2026-06-17: US$652.44; no sale recorded2026-06-23: US$663.63; no sale recorded2026-07-10: US$710.07; no sale recorded2026-07-10: US$655.00; no sale recorded2026-09-17: US$652.44; no sale recorded2026-10-10: US$655.00; no sale recorded2026-11-06: US$593.86; no sale recorded2026-11-06: US$600.49; no sale recorded
Sold recordedNo sale recordedMonthly median

Linear price scale. Dates are listing starts.

Median recorded price, all years$658.49

122 plotted records from 122 US-dollar records in this range. Monthly medians use all records in each calendar month.

Archived listings

124 recorded listings
Listing startArchived listingConditionRecorded priceQty soldArchive statusCountry
21 Mar 20266ES7421-1EL00-0AA0 NEW SIEMENS S7-400, digital input SM 421 6ES7421-1EL00-0AA0eBay 377051605816New$634.170Recorded activeUS
19 Mar 2026SIEMENS 6ES7421-1EL00-0AA0 / 6ES74211EL000AA0 (USED)eBay 397733810007Used$694.430Recorded activeUS
18 Mar 2026SIEMENS 6ES7421-1EL00-0AA0 / 6ES74211EL000AA0 (USED)eBay 318021677088Used$694.430Recorded activeUS
16 Mar 2026SIEMENS 6ES7421-1EL00-0AA0 / 6ES74211EL000AA0 (USED)eBay 236691227256Used$694.430Recorded activeUS
15 Mar 2026SIEMENS 6ES7421-1EL00-0AA0 / 6ES74211EL000AA0 (USED)eBay 236689918606Used$694.430Recorded activeUS
02 Mar 2026SIEMENS 6ES7421-1EL00-0AA0 / 6ES74211EL000AA0 (USED)eBay 397665802228Used$694.430Recorded activeUS
27 Feb 2026SIEMENS 6ES7421-1EL00-0AA0 / 6ES74211EL000AA0 (USED)eBay 397655679896Used$694.430Recorded activeUS
26 Feb 2026SIEMENS 6ES7421-1EL00-0AA0 / 6ES74211EL000AA0 (USED)eBay 236655958666Used$694.430Recorded activeUS
23 Feb 2026SIEMENS 6ES7421-1EL00-0AA0 / 6ES74211EL000AA0 (USED)eBay 236650731256Used$694.430Recorded activeUS
19 Feb 2026NEW Siemens 6ES7421-1EL00-0AA0 6ES7 421-1EL00-0AA0 S7-400, digital input SM 421eBay 188074699407New$500.490Recorded activeCN
09 Feb 2026NEW SIEMENS 6ES7421-1EL00-0AA0 6ES7 421-1EL00-0AA0 In Box Expedited ShippingeBay 206059059478New$1060.920Recorded activeUS
08 Feb 2026SIEMENS 6ES7421-1EL00-0AA0 / 6ES74211EL000AA0 (USED)eBay 397584514487Used$694.430Recorded activeUS
28 Jan 2026New Siemens 6SL32105FB108UF0 Servo Drive 6ES7421-1EL00-0AA0 one year warrantyeBay 317813684769New$660.310Recorded activeCN
27 Jan 2026New SIEMENS 6SL32105FB108UF0 Servo Drive 6ES7421-1EL00-0AA0 1 year warrantyeBay 317809260248New$664.000Recorded activeCN
26 Jan 20266ES7421-1EL00-0AA0 NEW SIEMENS S7-400, digital input SM 421 6ES7421-1EL00-0AA0eBay 227189372239New$480.160Recorded activeCN
23 Jan 2026New Siemens 6ES7 421-1EL00-0AA0 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 376887746958New$1149.240Recorded activeUS
16 Jan 2026SIEMENS 6ES7421-1EL00-0AA0 / 6ES74211EL000AA0 (USED)eBay 317769249196Used$771.590Recorded activeUS
22 Dec 2025New Siemens 6SL32105FB108UF0 Servo Drive 6ES7421-1EL00-0AA0 1 year warrantyeBay 197969660682New$656.980Recorded activeCN
18 Dec 2025Siemens 6ES7 421-1EL00-0AA0 New PLC 6ES7421-1EL00-0AA0eBay 157550857197New$713.570Recorded activeUS
13 Dec 20256ES7 421-1EL00-0AA0 NEW SIEMENS 6ES7421-1EL00-0AA0 S7-400, digital input SM 421/eBay 197945528269New$453.800Recorded activeCN
10 Dec 2025ONE New Siemens 6ES7 421-1EL00-0AA0 / 6ES7421-1EL00-0AA0 Module Fast ShipeBay 366049545738New$1061.680Recorded activeCN
02 Dec 2025Siemens 6ES7 421-1EL00-0AA0 New PLC 6ES7421-1EL00-0AA0eBay 236503064702New$741.460Recorded activeUS
28 Nov 2025New Siemens 6SL32105FB108UF0 Servo Drive 6ES7421-1EL00-0AA0 one year warrantyeBay 317598120697New$660.310Recorded activeCN
27 Nov 2025Siemens 6ES7 421-1EL00-0AA0 New PLC 6ES7421-1EL00-0AA0eBay 406426713376New$807.230Recorded activeUS
25 Nov 2025New Siemens 6SL32105FB108UF0 Servo Drive 6ES7421-1EL00-0AA0 quality assuranceeBay 389287029364New$642.600Recorded activeCN
How to read these records

Dollar amounts are recorded US-dollar prices. Bracketed labels identify other marketplaces, whose currency was not recorded. Recorded quantities sold indicate marketplace activity. Recorded active is the status retained in the archive.

Browse neighboring part numbers by prefix

Neighboring part numbers

6ES7421-1BL01-0AA0/VERSE6ES7421-1BL01-0AA0 6ES7421-1BL01-0AAO6ES7421-1FH00-0AA06ES7421-1FH20-0AA06ES7421-1LB01-0AA0

Related part numbers

6ES7141-5BF00-0BA06ES7131-6BF00-0CA06ES7318-3EL01-0AB06ES7550-1AA01-0AB06ES7334-0KE00-0AB06GK7542-1AX00-0XE06SN1123-1AA00-0CA13VL1725-1EH43-0AA06EP3310-6SB00-0AY06SN1113-1AB01-0BA16SN1145-1AA01-0AA16SN1118-0AA11-0AA06SN1121-0BA11-0AA16GK7243-2AX01-0XA07SR4501-1GB10-1AA0/EE

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