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
12 Apr 20261pc new Siemens 6ES7 321-1CH20-0AA0 moduleeBay 397831975166New - Open box$738.700Recorded activeCN
13 Apr 20251PCS New Siemens 6ES7 321-1CH20-0AA0 Digital Module Fast ShipeBay 316644811435New$326.120Recorded activeUS
19 Feb 2025SIEMENS 6ES7 321-1CH20-0AA0 ModuleeBay 186970497644New$242.000Recorded activeCN
13 Feb 20251pc new Siemens 6ES7 321-1CH20-0AA0 moduleeBay 235956129690New - Open box$740.000Recorded activeCN
10 Feb 2025New In Box Siemens 6ES7 321-1CH20-0AA0 6ES7 321-1CH20-0AA0eBay 126933117542New$519.981Sold recordedCN
02 Jan 2025SIEMENS 6ES7 321-1CH20-0AA0 ModuleeBay 405452365203New$443.000Recorded activeCN
06 Dec 2024NEW 1PCS Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0eBay 316029707895New$416.711Sold recordedCN
18 Nov 2024Brand New Siemens 6ES7 321-1CH20-0AA0 / 6ES7321-1CH20-0AA0eBay 135385244210New$520.001Sold recordedCN
12 Nov 2024Simatic S7-300 SM321 6ES7 321-1CH20-0AA0 E-Stand:04 SIEeBay 405347566260Neu: Sonstige (siehe Artikelbeschreibung)524.82 [Germany]1Sold recordedDE
08 Nov 2024New Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0 Fast ShippingeBay 356236890705New$510.001Sold recordedCN
07 Nov 2024Brand New Siemens 6ES7 321-1CH20-0AA0 / 6ES7321-1CH20-0AA0eBay 395875756287New$520.000No sale recordedCN
07 Nov 2024Brand New Siemens 6ES7 321-1CH20-0AA0 / 6ES7321-1CH20-0AA0eBay 135351351793New$520.000No sale recordedCN
25 Oct 20241PCS New Siemens 6ES7 321-1CH20-0AA0 Digital Module Fast ShipeBay 356188938861Neu286.00 [Germany]0Recorded activeCN
13 Oct 20246ES7 321-1CH20-0AA0 NEW SIEMENS 6ES7321-1CH20-0AA0 S7-300 Digital Input ModuleeBay 315844029716New$265.651Sold recordedCN
08 Oct 2024Simatic S7-300 SM321 6ES7 321-1CH20-0AA0 E-Stand:04 SIEeBay 405272940880Neu: Sonstige (siehe Artikelbeschreibung)531.34 [Germany]0No sale recordedDE
27 Sep 20241PCS New Siemens 6ES7 321-1CH20-0AA0 6ES7321-1CH20-0AA0 In Box Expedited ShipeBay 166993654682New$549.000Recorded activeCN
15 Aug 20241PC NEW Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0eBay 305730240182New$416.511Sold recordedCN
19 Jul 2024New In Box Siemens 6ES7 321-1CH20-0AA0 6ES7 321-1CH20-0AA0eBay 126583367338New$858.880No sale recordedCN
18 Jun 20241PC NEW Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0eBay 315447158376New$416.740No sale recordedCN
18 Jun 20241PCS NEW Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0eBay 405044479722New$416.400No sale recordedCN
29 May 2024One NEW Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0eBay 355750921123New$416.780No sale recordedCN
17 May 2024New in box SIEMENS 6ES7 321-1CH20-0AA0 Module 6ES7321-1CH20-0AA0eBay 145781104421New$568.000No sale recordedUS
10 May 2024SIEMENS 6ES7 321-1CH20-0AA0 ModuleeBay 204784291150New$445.000Recorded activeCN
22 Apr 2024NEW 1PCS Siemens 6ES7 321-1CH20-0AA0 Digital Module 6ES7321-1CH20-0AA0eBay 204757457768New$416.800No sale recordedCN
17 Apr 2024NEW SIEMENS 6ES7 321-1CH20-0AA0 Module 6ES7321-1CH20-0AA0eBay 404927961276New$566.000No sale recordedUS
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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