PartHistory
Siemens / PLCs and I/O (SIMATIC)

6ES7321-1CH20-0AA0

PLCs and I/O (SIMATIC) family illustration
Recorded listings
92
Recorded quantity sold
15
Median recorded price
$401.0087 US-dollar records
Recorded price range
$99.99to $2398.50 USD
First listing start: 19 Jun 2017Last listing start: 12 Apr 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.0.001000.002000.003000.004000.00Jun 2017Aug 2019Nov 2021Jan 2024Apr 20262017-06-19: US$199.00; no sale recorded2017-07-06: US$374.40; no sale recorded2017-07-24: US$199.00; no sale recorded2017-08-02: US$202.11; no sale recorded2017-09-21: US$282.00; no sale recorded2017-09-23: US$354.99; no sale recorded2017-11-05: US$385.00; no sale recorded2018-01-07: US$503.00; no sale recorded2018-02-19: US$550.00; no sale recorded2018-02-22: US$419.00; no sale recorded2018-03-20: US$350.00; no sale recorded2018-04-02: US$384.00; no sale recorded2018-04-09: US$350.00; no sale recorded2018-04-19: US$300.00; no sale recorded2018-04-22: US$472.70; no sale recorded2018-04-24: US$401.00; no sale recorded2018-04-25: US$2398.50; no sale recorded2018-04-30: US$300.00; no sale recorded2018-05-01: US$380.00; no sale recorded2018-05-10: US$275.00; no sale recorded2018-05-21: US$275.00; no sale recorded2018-05-31: US$380.00; no sale recorded2018-05-31: US$225.00; no sale recorded2018-06-25: US$200.00; no sale recorded2018-07-02: US$380.00; no sale recorded2018-08-06: US$150.00; no sale recorded2018-08-16: US$120.00; no sale recorded2018-09-07: US$120.00; no sale recorded2018-10-01: US$120.00; no sale recorded2018-10-17: US$120.00; no sale recorded2019-01-29: US$120.00; no sale recorded2019-10-29: US$358.20; no sale recorded2019-10-29: US$360.19; no sale recorded2019-11-08: US$243.00; no sale recorded2019-11-26: US$296.58; no sale recorded2019-12-15: US$270.41; no sale recorded2020-01-02: US$358.00; no sale recorded2020-01-03: US$360.00; no sale recorded2020-01-11: US$274.80; no sale recorded2020-12-10: US$548.33; no sale recorded2021-01-06: US$450.00; no sale recorded2021-01-13: US$359.00; no sale recorded2021-04-10: US$287.36; no sale recorded2022-01-12: US$199.99; sold recorded2022-01-15: US$99.99; sold recorded2022-04-06: US$623.16; no sale recorded2022-04-25: US$697.96; no sale recorded2022-05-12: US$2384.17; no sale recorded2022-07-28: US$124.99; sold recorded2022-08-10: US$757.38; no sale recorded2022-09-13: US$697.96; no sale recorded2022-11-04: US$256.56; no sale recorded2022-12-17: US$492.99; no sale recorded2022-12-30: US$493.02; no sale recorded2022-12-30: US$493.03; no sale recorded2022-12-30: US$493.04; no sale recorded2022-12-30: US$492.89; no sale recorded2023-05-19: US$858.88; no sale recorded2023-07-25: US$416.75; no sale recorded2023-08-23: US$549.25; no sale recorded2023-09-23: US$529.00; no sale recorded2023-09-23: US$566.00; no sale recorded2023-10-12: US$445.00; sold recorded2023-12-26: US$265.65; no sale recorded2024-03-18: US$568.00; no sale recorded2024-04-17: US$566.00; no sale recorded2024-04-22: US$416.80; no sale recorded2024-05-10: US$445.00; no sale recorded2024-05-17: US$568.00; no sale recorded2024-05-29: US$416.78; no sale recorded2024-06-18: US$416.40; no sale recorded2024-06-18: US$416.74; no sale recorded2024-07-19: US$858.88; no sale recorded2024-08-15: US$416.51; sold recorded2024-09-27: US$549.00; no sale recorded2024-10-13: US$265.65; sold recorded2024-11-07: US$520.00; no sale recorded2024-11-07: US$520.00; no sale recorded2024-11-08: US$510.00; sold recorded2024-11-18: US$520.00; sold recorded2024-12-06: US$416.71; sold recorded2025-01-02: US$443.00; no sale recorded2025-02-10: US$519.98; sold recorded2025-02-13: US$740.00; no sale recorded2025-02-19: US$242.00; no sale recorded2025-04-13: US$326.12; no sale recorded2026-04-12: US$738.70; 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.0.001000.002000.003000.004000.00Jun 2017Nov 2021Apr 20262017-06-19: US$199.00; no sale recorded2017-07-06: US$374.40; no sale recorded2017-07-24: US$199.00; no sale recorded2017-08-02: US$202.11; no sale recorded2017-09-21: US$282.00; no sale recorded2017-09-23: US$354.99; no sale recorded2017-11-05: US$385.00; no sale recorded2018-01-07: US$503.00; no sale recorded2018-02-19: US$550.00; no sale recorded2018-02-22: US$419.00; no sale recorded2018-03-20: US$350.00; no sale recorded2018-04-02: US$384.00; no sale recorded2018-04-09: US$350.00; no sale recorded2018-04-19: US$300.00; no sale recorded2018-04-22: US$472.70; no sale recorded2018-04-24: US$401.00; no sale recorded2018-04-25: US$2398.50; no sale recorded2018-04-30: US$300.00; no sale recorded2018-05-01: US$380.00; no sale recorded2018-05-10: US$275.00; no sale recorded2018-05-21: US$275.00; no sale recorded2018-05-31: US$380.00; no sale recorded2018-05-31: US$225.00; no sale recorded2018-06-25: US$200.00; no sale recorded2018-07-02: US$380.00; no sale recorded2018-08-06: US$150.00; no sale recorded2018-08-16: US$120.00; no sale recorded2018-09-07: US$120.00; no sale recorded2018-10-01: US$120.00; no sale recorded2018-10-17: US$120.00; no sale recorded2019-01-29: US$120.00; no sale recorded2019-10-29: US$358.20; no sale recorded2019-10-29: US$360.19; no sale recorded2019-11-08: US$243.00; no sale recorded2019-11-26: US$296.58; no sale recorded2019-12-15: US$270.41; no sale recorded2020-01-02: US$358.00; no sale recorded2020-01-03: US$360.00; no sale recorded2020-01-11: US$274.80; no sale recorded2020-12-10: US$548.33; no sale recorded2021-01-06: US$450.00; no sale recorded2021-01-13: US$359.00; no sale recorded2021-04-10: US$287.36; no sale recorded2022-01-12: US$199.99; sold recorded2022-01-15: US$99.99; sold recorded2022-04-06: US$623.16; no sale recorded2022-04-25: US$697.96; no sale recorded2022-05-12: US$2384.17; no sale recorded2022-07-28: US$124.99; sold recorded2022-08-10: US$757.38; no sale recorded2022-09-13: US$697.96; no sale recorded2022-11-04: US$256.56; no sale recorded2022-12-17: US$492.99; no sale recorded2022-12-30: US$493.02; no sale recorded2022-12-30: US$493.03; no sale recorded2022-12-30: US$493.04; no sale recorded2022-12-30: US$492.89; no sale recorded2023-05-19: US$858.88; no sale recorded2023-07-25: US$416.75; no sale recorded2023-08-23: US$549.25; no sale recorded2023-09-23: US$529.00; no sale recorded2023-09-23: US$566.00; no sale recorded2023-10-12: US$445.00; sold recorded2023-12-26: US$265.65; no sale recorded2024-03-18: US$568.00; no sale recorded2024-04-17: US$566.00; no sale recorded2024-04-22: US$416.80; no sale recorded2024-05-10: US$445.00; no sale recorded2024-05-17: US$568.00; no sale recorded2024-05-29: US$416.78; no sale recorded2024-06-18: US$416.40; no sale recorded2024-06-18: US$416.74; no sale recorded2024-07-19: US$858.88; no sale recorded2024-08-15: US$416.51; sold recorded2024-09-27: US$549.00; no sale recorded2024-10-13: US$265.65; sold recorded2024-11-07: US$520.00; no sale recorded2024-11-07: US$520.00; no sale recorded2024-11-08: US$510.00; sold recorded2024-11-18: US$520.00; sold recorded2024-12-06: US$416.71; sold recorded2025-01-02: US$443.00; no sale recorded2025-02-10: US$519.98; sold recorded2025-02-13: US$740.00; no sale recorded2025-02-19: US$242.00; no sale recorded2025-04-13: US$326.12; no sale recorded2026-04-12: US$738.70; no sale recorded
Sold recordedNo sale recordedMonthly median

Linear price scale. Dates are listing starts.

Median recorded price, all years$401.00

87 plotted records from 87 US-dollar records in this range. Monthly medians use all records in each calendar month.

Archived listings

92 recorded listings
Listing startArchived listingConditionRecorded priceQty soldArchive statusCountry
18 Mar 2024New in box SIEMENS 6ES7 321-1CH20-0AA0 Module 6ES7321-1CH20-0AA0eBay 145673451847New$568.000No sale recordedUS
27 Dec 20236ES7 321-1CH20-0AA0 NEU SIEMENS 6ES7321-1CH20-0AA0 S7-300 Digital Input ModuleeBay 355320429315Neu283.23 [Germany]0Recorded activeCN
26 Dec 20236ES7 321-1CH20-0AA0 NEW SIEMENS 6ES7321-1CH20-0AA0 S7-300 Digital Input ModuleeBay 126253096975New$265.650Recorded activeCN
12 Oct 2023SIEMENS 6ES7 321-1CH20-0AA0 ModuleeBay 314883440194New$445.001Sold recordedCN
23 Sep 2023NEW SIEMENS 6ES7 321-1CH20-0AA0 Module 6ES7321-1CH20-0AA0eBay 404509698655New$566.000No sale recordedUS
23 Sep 20231PCS New Siemens 6ES7 321-1CH20-0AA0 Digital Module Fast ShipeBay 166344565427New$529.000No sale recordedUS
23 Aug 2023NEW SIEMENS 6ES7 321-1CH20-0AA0 Module 6ES7321-1CH20-0AA0eBay 386022670399New$549.250No sale recordedUS
25 Jul 2023NEW One Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0eBay 364373304789New$416.750No sale recordedCN
19 May 2023New In Box Siemens 6ES7 321-1CH20-0AA0 6ES7 321-1CH20-0AA0eBay 125940834080New$858.880No sale recordedCN
30 Dec 20221PCS New Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0eBay 364094515048New$492.890No sale recordedCN
30 Dec 20221PCS New Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0eBay 195538115323New$493.040No sale recordedCN
30 Dec 20221PCS Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0 NeweBay 234839807363New$493.030No sale recordedCN
30 Dec 2022one Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0 NeweBay 314297046303New$493.020No sale recordedCN
17 Dec 20221PCS New Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0eBay 185701909952New$492.990No sale recordedCN
04 Nov 20221PCS New Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0eBay 285026136947New$256.560No sale recordedCN
13 Sep 2022Digital Module 1Pc Siemens 6ES7 321-1CH20-0AA0 ygeBay 385114390931New$697.960No sale recordedCN
10 Aug 20221PCS - New Siemens 6ES7 321-1CH20-0AA0 Digital ModuleeBay 354216156388New$757.380No sale recordedCN
28 Jul 2022SIEMENS 6ES7 321-1CH20-0AA0 321-1CH20-0AA0 SIMATIC S7-300 DIGITAL INPUT MODULEeBay 144661502177Used$124.992Sold recordedUS
12 May 20226ES7 321-1CH20-0AA0 6ES7321-1CH20-0AA0 1PC NEW Siemens free shippingeBay 363836020886New$2384.170Recorded activeCN
25 Apr 2022Digital Module 1Pc Siemens 6ES7 321-1CH20-0AA0 ieeBay 255506427088New$697.960No sale recordedCN
07 Apr 2022Siemens 6ES7 321-1CH20-0AA0eBay 255476022722Gebraucht140.27 [Germany]0No sale recordedDE
06 Apr 20221PC New 6ES7 321-1CH20-0AA0 Quality assurance fast delivery SM9TeBay 275255910409New$623.160No sale recordedCN
15 Jan 2022SIEMENS SIMATIC S7 PLC MODULE 6ES7 321-1CH20-0AA0 6ES73211CH200AA0 USEDeBay 265502988955Used$99.994Sold recordedUS
12 Jan 2022SIEMENS SIMATIC S7-300 PLC MODULE 6ES7 321-1CH20-0AA0 SEALED BOXeBay 265496494812New - Open box$199.991Sold recordedUS
10 Apr 20211PC Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0 New In BoxeBay 402786526773New$287.360No 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

321-1BP00-0AA0321-1C20-0AA06ES7321-1CH00-0AA0321-1CH20-2AA06ES7321-1CH80-0AA06ES7321-1EH01-0AA0

Related part numbers

6ES7321-1BL00-0AA0331-1KF02-0AB03VL1725-1EH43-0AA06ES7322-1BL00-0AA06ES7322-1FL00-0AA06ES7331-7KF02-0AB06ES7194-4GB60-0AA0910-1AA30-1AA03VA2340-6HN32-0AA03VA2463-6HN32-0AA06EP3310-6SB00-0AY06SL3040-0LA00-0AA06SL3120-1TE13-0AA36ES7216-2AD23-0XB0972-0BA50-0XA0

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