PartHistory
Siemens / PLCs and I/O (SIMATIC)

6ES7421-1EL00-0AA0

PLCs and I/O (SIMATIC) family illustration
Recorded listings
79
Recorded quantity sold
2
Median recorded price
$635.5578 US-dollar records
Recorded price range
$149.99to $1152.19 USD
First listing start: 08 May 2017Last listing start: 11 Sep 2025

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.0.00500.001000.001500.002000.00May 2017Jun 2019Jul 2021Aug 2023Sep 20252017-05-08: US$149.99; no sale recorded2017-06-21: US$979.00; no sale recorded2017-08-07: US$149.99; no sale recorded2017-09-06: US$149.99; no sale recorded2017-10-06: US$149.99; no sale recorded2017-11-03: US$803.26; no sale recorded2018-02-05: US$149.99; no sale recorded2018-03-08: US$149.99; no sale recorded2018-03-20: US$725.64; no sale recorded2018-04-09: US$149.99; no sale recorded2018-05-09: US$149.99; no sale recorded2018-06-20: US$149.99; no sale recorded2018-07-20: US$149.99; no sale recorded2018-09-20: US$149.99; no sale recorded2019-01-08: US$464.98; no sale recorded2019-01-08: US$617.91; no sale recorded2019-01-23: US$689.00; no sale recorded2019-10-18: US$659.67; no sale recorded2019-10-21: US$660.65; no sale recorded2019-10-21: US$662.61; no sale recorded2019-10-23: US$640.00; no sale recorded2019-12-26: US$655.00; no sale recorded2020-01-02: US$575.13; no sale recorded2020-03-23: US$550.00; no sale recorded2020-04-27: US$575.12; no sale recorded2020-04-27: US$575.11; no sale recorded2020-12-25: US$575.11; no sale recorded2020-12-25: US$575.12; no sale recorded2020-12-25: US$575.13; no sale recorded2021-01-02: US$459.59; no sale recorded2021-06-15: US$653.29; no sale recorded2021-06-15: US$653.28; no sale recorded2021-06-15: US$653.27; no sale recorded2022-01-21: US$899.90; no sale recorded2022-01-21: US$654.95; no sale recorded2022-02-17: US$899.52; no sale recorded2022-02-17: US$899.53; no sale recorded2022-03-23: US$449.99; no sale recorded2022-07-11: US$899.61; no sale recorded2022-08-13: US$896.79; no sale recorded2022-08-13: US$899.50; no sale recorded2022-08-13: US$899.96; no sale recorded2022-08-13: US$899.24; no sale recorded2022-08-13: US$899.25; no sale recorded2022-08-13: US$899.92; no sale recorded2022-08-13: US$899.90; no sale recorded2022-08-13: US$899.23; no sale recorded2022-08-13: US$899.26; no sale recorded2023-02-06: US$630.70; no sale recorded2023-04-04: US$635.70; no sale recorded2023-04-04: US$635.30; no sale recorded2023-04-04: US$630.50; no sale recorded2023-04-04: US$630.60; no sale recorded2023-04-04: US$635.20; no sale recorded2023-04-04: US$635.50; no sale recorded2023-04-07: US$375.00; no sale recorded2023-06-29: US$635.60; no sale recorded2023-06-30: US$630.90; no sale recorded2023-07-06: US$635.30; no sale recorded2023-07-06: US$630.10; no sale recorded2023-07-06: US$635.70; no sale recorded2023-10-16: US$635.10; no sale recorded2023-10-23: US$635.20; no sale recorded2023-10-23: US$630.50; no sale recorded2023-10-23: US$635.50; no sale recorded2023-10-23: US$635.30; no sale recorded2024-03-06: US$454.99; no sale recorded2024-06-08: US$1036.83; no sale recorded2024-06-09: US$980.08; no sale recorded2024-06-09: US$959.31; no sale recorded2024-06-09: US$1046.52; no sale recorded2024-08-11: US$969.00; no sale recorded2024-08-19: US$959.31; no sale recorded2024-09-06: US$959.31; no sale recorded2024-10-03: US$1056.99; sold recorded2024-10-15: US$1152.19; no sale recorded2024-10-16: US$1146.46; sold recorded2025-09-11: US$349.99; 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.0.00500.001000.001500.002000.00May 2017Jul 2021Sep 20252017-05-08: US$149.99; no sale recorded2017-06-21: US$979.00; no sale recorded2017-08-07: US$149.99; no sale recorded2017-09-06: US$149.99; no sale recorded2017-10-06: US$149.99; no sale recorded2017-11-03: US$803.26; no sale recorded2018-02-05: US$149.99; no sale recorded2018-03-08: US$149.99; no sale recorded2018-03-20: US$725.64; no sale recorded2018-04-09: US$149.99; no sale recorded2018-05-09: US$149.99; no sale recorded2018-06-20: US$149.99; no sale recorded2018-07-20: US$149.99; no sale recorded2018-09-20: US$149.99; no sale recorded2019-01-08: US$464.98; no sale recorded2019-01-08: US$617.91; no sale recorded2019-01-23: US$689.00; no sale recorded2019-10-18: US$659.67; no sale recorded2019-10-21: US$660.65; no sale recorded2019-10-21: US$662.61; no sale recorded2019-10-23: US$640.00; no sale recorded2019-12-26: US$655.00; no sale recorded2020-01-02: US$575.13; no sale recorded2020-03-23: US$550.00; no sale recorded2020-04-27: US$575.12; no sale recorded2020-04-27: US$575.11; no sale recorded2020-12-25: US$575.11; no sale recorded2020-12-25: US$575.12; no sale recorded2020-12-25: US$575.13; no sale recorded2021-01-02: US$459.59; no sale recorded2021-06-15: US$653.29; no sale recorded2021-06-15: US$653.28; no sale recorded2021-06-15: US$653.27; no sale recorded2022-01-21: US$899.90; no sale recorded2022-01-21: US$654.95; no sale recorded2022-02-17: US$899.52; no sale recorded2022-02-17: US$899.53; no sale recorded2022-03-23: US$449.99; no sale recorded2022-07-11: US$899.61; no sale recorded2022-08-13: US$896.79; no sale recorded2022-08-13: US$899.50; no sale recorded2022-08-13: US$899.96; no sale recorded2022-08-13: US$899.24; no sale recorded2022-08-13: US$899.25; no sale recorded2022-08-13: US$899.92; no sale recorded2022-08-13: US$899.90; no sale recorded2022-08-13: US$899.23; no sale recorded2022-08-13: US$899.26; no sale recorded2023-02-06: US$630.70; no sale recorded2023-04-04: US$635.70; no sale recorded2023-04-04: US$635.30; no sale recorded2023-04-04: US$630.50; no sale recorded2023-04-04: US$630.60; no sale recorded2023-04-04: US$635.20; no sale recorded2023-04-04: US$635.50; no sale recorded2023-04-07: US$375.00; no sale recorded2023-06-29: US$635.60; no sale recorded2023-06-30: US$630.90; no sale recorded2023-07-06: US$635.30; no sale recorded2023-07-06: US$630.10; no sale recorded2023-07-06: US$635.70; no sale recorded2023-10-16: US$635.10; no sale recorded2023-10-23: US$635.20; no sale recorded2023-10-23: US$630.50; no sale recorded2023-10-23: US$635.50; no sale recorded2023-10-23: US$635.30; no sale recorded2024-03-06: US$454.99; no sale recorded2024-06-08: US$1036.83; no sale recorded2024-06-09: US$980.08; no sale recorded2024-06-09: US$959.31; no sale recorded2024-06-09: US$1046.52; no sale recorded2024-08-11: US$969.00; no sale recorded2024-08-19: US$959.31; no sale recorded2024-09-06: US$959.31; no sale recorded2024-10-03: US$1056.99; sold recorded2024-10-15: US$1152.19; no sale recorded2024-10-16: US$1146.46; sold recorded2025-09-11: US$349.99; no sale recorded
Sold recordedNo sale recordedMonthly median

Linear price scale. Dates are listing starts.

Median recorded price, all years$635.55

78 plotted records from 78 US-dollar records in this range. Monthly medians use all records in each calendar month.

Archived listings

79 recorded listings
Listing startArchived listingConditionRecorded priceQty soldArchive statusCountry
11 Sep 2025Siemens SIMATIC S7 6ES7 421-1EL00-0AA0 Input Module w/ABB Connector (2), NOSeBay 167784816141New - Open box$349.990Recorded activeUS
16 Oct 2024NEW Siemens 6ES7 421-1EL00-0AA0 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 146106018975New$1146.461Sold recordedUS
15 Oct 2024NEW Siemens 6ES7 421-1EL00-0AA0 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 305840272781New$1152.190No sale recordedUS
03 Oct 2024NEW Siemens 6ES7 421-1EL00-0AA0 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 405264172629New$1056.991Sold recordedUS
06 Sep 2024New SIEMENS 6ES7 421-1EL00-0AA0 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 315731352217New$959.310No sale recordedCN
19 Aug 2024New Siemens 6ES7 421-1EL00-0AA0 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 405176845796New$959.310No sale recordedCN
11 Aug 2024New Siemens 6ES7 421-1EL00-0AA0 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 166913909220New$969.000No sale recordedCN
09 Jun 2024NEW Siemens 6ES7 421-1EL00-0AA0 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 405026158421New$1046.520No sale recordedUS
09 Jun 2024New SIEMENS 6ES7 421-1EL00-0AA0 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 315426610491New$959.310No sale recordedCA
09 Jun 2024new Siemens 6ES7 421-1EL00-0AA0 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 355778147308New$980.080No sale recordedUS
08 Jun 2024NEW Siemens 6ES7 421-1EL00-0AA0 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 145821283062New$1036.830No sale recordedUS
06 Mar 20246ES7 421-1EL00-0AA0 NEW SIEMENS 6ES7421-1EL00-0AA0 S7-400, digital input SM 421eBay 126363898060New$454.990Recorded activeCN
23 Oct 20231PCS New Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0eBay 364543118877New$635.300No sale recordedCN
23 Oct 2023ONE Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0 NeweBay 335084091612New$635.500Recorded activeCN
23 Oct 2023ONE New Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0eBay 235265482061New$630.500No sale recordedCN
23 Oct 2023ONE Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0 NeweBay 404566602834New$635.200No sale recordedCN
16 Oct 2023ONE Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0 NeweBay 394939514377New$635.100Recorded activeCN
06 Jul 20231PCS New Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0eBay 314692417033New$635.700No sale recordedCN
06 Jul 20231PCS New Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0eBay 195861558599New$630.100No sale recordedCN
06 Jul 20231PCS New Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0eBay 364336813989New$635.300No sale recordedCN
30 Jun 20231PCS New Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0eBay 185964790061New$630.900No sale recordedCN
29 Jun 20231PCS New Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0eBay 314677349765New$635.600No sale recordedCN
07 Apr 2023NEW OPEN BOX Siemens 6ES7 421-1EL00-0AA0 Input Module - U.S. SELLEReBay 314508572332New - Open box$375.000Recorded activeUS
04 Apr 2023ONE Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0 NeweBay 334818210710New$635.500No sale recordedCN
04 Apr 2023ONE Siemens 6ES7 421-1EL00-0AA0 PLC 6ES7421-1EL00-0AA0 NeweBay 404230247764New$635.200No sale recordedCN
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

421-1BL01-0AA0SIEMENS6ES7421-1BL01-0AB0421-1EA106ES7421-1FH00-0AA0421-1FH00-0AA06ES7421-1FH00-0AA0E:016ES7421-1FH20-0AA0

Related part numbers

6ES7331-7KF02-0AB03VL1725-1EH43-0AA06ES7318-3EL01-0AB06SN1123-1AA00-0CA16ES7141-5BF00-0BA06SN1145-1AA01-0AA16ES7131-6BF00-0CA06SN1118-0AA11-0AA06EP3310-6SB00-0AY06GK7542-1AX00-0XE06SN1123-1AA00-0EA16AU1445-0AA00-0AA16SN1123-1AA00-0DA16SN1123-1AB00-0CA17SR4501-1GB10-1AA0/EE

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