PartHistory
Siemens / PLCs and I/O (SIMATIC)

6ES7321-1EH01-0AA0

PLCs and I/O (SIMATIC) family illustration
Recorded listings
139
Recorded quantity sold
15
Median recorded price
$44.49136 US-dollar records
Recorded price range
$1.00to $1940.00 USD
First listing start: 04 Apr 2017Last listing start: 06 Jul 2026

Recorded price history

USD
Recorded US-dollar price historyLogarithmic price scale (price + 1). 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.01101001000Apr 2017Jul 2019Nov 2021Mar 2024Jul 20262017-04-04: US$49.99; no sale recorded2017-04-09: US$30.00; no sale recorded2017-05-04: US$49.99; no sale recorded2017-05-09: US$30.00; no sale recorded2017-06-03: US$49.99; no sale recorded2017-06-28: US$20.00; no sale recorded2017-07-05: US$20.00; no sale recorded2017-07-13: US$20.00; no sale recorded2017-07-19: US$20.00; no sale recorded2017-07-24: US$20.00; no sale recorded2017-07-30: US$20.00; no sale recorded2017-08-02: US$49.99; no sale recorded2017-08-07: US$30.00; no sale recorded2017-08-14: US$20.00; no sale recorded2017-09-01: US$49.99; no sale recorded2017-09-06: US$30.00; no sale recorded2017-09-15: US$24.95; no sale recorded2017-09-18: US$20.00; no sale recorded2017-09-26: US$20.00; no sale recorded2017-09-29: US$23.95; no sale recorded2017-10-01: US$49.99; no sale recorded2017-10-03: US$20.00; no sale recorded2017-10-06: US$23.95; no sale recorded2017-10-06: US$30.00; no sale recorded2017-10-11: US$22.00; sold recorded2017-10-14: US$20.00; no sale recorded2017-10-16: US$23.95; no sale recorded2017-10-21: US$20.00; no sale recorded2017-10-27: US$20.00; no sale recorded2017-10-27: US$21.95; no sale recorded2017-10-31: US$49.99; no sale recorded2017-11-01: US$20.00; no sale recorded2017-11-05: US$30.00; no sale recorded2017-11-06: US$29.95; no sale recorded2017-11-08: US$20.00; no sale recorded2017-12-09: US$19.75; no sale recorded2017-12-30: US$49.99; no sale recorded2018-01-02: US$16.95; no sale recorded2018-01-09: US$14.95; no sale recorded2018-01-15: US$20.00; no sale recorded2018-01-17: US$13.45; no sale recorded2018-01-21: US$13.95; no sale recorded2018-01-26: US$13.95; no sale recorded2018-01-29: US$49.99; no sale recorded2018-01-31: US$12.55; no sale recorded2018-02-07: US$14.95; no sale recorded2018-02-16: US$20.00; no sale recorded2018-02-28: US$49.99; no sale recorded2018-03-05: US$30.00; no sale recorded2018-03-18: US$20.00; no sale recorded2018-03-30: US$49.99; no sale recorded2018-04-17: US$20.00; no sale recorded2018-04-29: US$49.99; no sale recorded2018-05-04: US$30.00; no sale recorded2018-05-18: US$20.00; no sale recorded2018-06-03: US$30.00; no sale recorded2018-06-18: US$20.00; no sale recorded2018-06-28: US$49.99; no sale recorded2018-07-03: US$30.00; no sale recorded2018-08-23: US$9.95; no sale recorded2018-08-28: US$7.95; no sale recorded2018-09-01: US$30.00; no sale recorded2018-09-04: US$7.95; no sale recorded2018-09-11: US$7.95; no sale recorded2018-09-19: US$20.00; no sale recorded2018-09-19: US$7.95; no sale recorded2018-09-26: US$7.95; no sale recorded2018-09-26: US$49.99; no sale recorded2018-10-01: US$30.00; no sale recorded2018-10-03: US$7.95; no sale recorded2018-10-10: US$7.95; no sale recorded2018-10-21: US$20.00; no sale recorded2020-07-07: US$29.68; no sale recorded2021-03-07: US$25.00; no sale recorded2021-04-13: US$35.00; no sale recorded2022-06-18: US$138.53; no sale recorded2022-07-11: US$74.99; no sale recorded2022-07-15: US$144.99; no sale recorded2023-03-04: US$402.00; no sale recorded2023-03-15: US$143.95; no sale recorded2023-04-25: US$1.00; no sale recorded2023-06-05: US$404.00; no sale recorded2023-11-02: US$1940.00; no sale recorded2023-11-02: US$453.33; no sale recorded2023-11-02: US$117.73; no sale recorded2024-05-24: US$16.72; sold recorded2024-06-08: US$373.43; no sale recorded2024-06-09: US$352.99; no sale recorded2024-06-09: US$345.51; sold recorded2024-06-09: US$376.92; no sale recorded2024-06-24: US$345.00; no sale recorded2024-06-27: US$335.51; no sale recorded2024-06-28: US$333.51; sold recorded2024-07-01: US$335.51; no sale recorded2024-07-01: US$354.24; no sale recorded2024-07-02: US$335.51; no sale recorded2024-08-07: US$89.99; no sale recorded2024-08-11: US$349.00; no sale recorded2024-08-26: US$375.41; no sale recorded2024-09-06: US$345.51; no sale recorded2024-09-19: US$347.01; no sale recorded2024-10-05: US$416.58; no sale recorded2024-10-05: US$453.33; no sale recorded2024-10-05: US$117.73; no sale recorded2024-10-15: US$111.48; no sale recorded2024-10-16: US$403.83; no sale recorded2024-10-29: US$29.99; no sale recorded2024-11-07: US$320.00; no sale recorded2024-11-07: US$320.00; no sale recorded2025-01-09: US$327.00; sold recorded2025-01-22: US$17.99; no sale recorded2025-01-26: US$327.00; sold recorded2025-02-03: US$119.08; sold recorded2025-02-10: US$319.98; sold recorded2025-03-27: US$320.00; sold recorded2025-04-09: US$327.00; no sale recorded2025-04-26: US$320.00; sold recorded2025-05-02: US$550.00; no sale recorded2025-05-15: US$897.00; no sale recorded2025-05-26: US$337.93; no sale recorded2025-05-26: US$337.35; no sale recorded2025-07-27: US$30.00; no sale recorded2025-09-08: US$77.88; no sale recorded2025-09-08: US$79.96; no sale recorded2025-10-07: US$394.99; no sale recorded2025-10-15: US$350.40; no sale recorded2025-10-20: US$38.99; no sale recorded2025-10-31: US$255.00; no sale recorded2025-12-07: US$394.99; no sale recorded2026-01-02: US$134.99; no sale recorded2026-01-15: US$280.00; no sale recorded2026-03-01: US$28.12; no sale recorded2026-03-07: US$394.99; no sale recorded2026-05-13: US$294.99; no sale recorded2026-06-01: US$1940.00; no sale recorded2026-07-01: US$1940.00; no sale recordedRecorded US-dollar price historyLogarithmic price scale (price + 1). 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.01101001000Apr 2017Nov 2021Jul 20262017-04-04: US$49.99; no sale recorded2017-04-09: US$30.00; no sale recorded2017-05-04: US$49.99; no sale recorded2017-05-09: US$30.00; no sale recorded2017-06-03: US$49.99; no sale recorded2017-06-28: US$20.00; no sale recorded2017-07-05: US$20.00; no sale recorded2017-07-13: US$20.00; no sale recorded2017-07-19: US$20.00; no sale recorded2017-07-24: US$20.00; no sale recorded2017-07-30: US$20.00; no sale recorded2017-08-02: US$49.99; no sale recorded2017-08-07: US$30.00; no sale recorded2017-08-14: US$20.00; no sale recorded2017-09-01: US$49.99; no sale recorded2017-09-06: US$30.00; no sale recorded2017-09-15: US$24.95; no sale recorded2017-09-18: US$20.00; no sale recorded2017-09-26: US$20.00; no sale recorded2017-09-29: US$23.95; no sale recorded2017-10-01: US$49.99; no sale recorded2017-10-03: US$20.00; no sale recorded2017-10-06: US$23.95; no sale recorded2017-10-06: US$30.00; no sale recorded2017-10-11: US$22.00; sold recorded2017-10-14: US$20.00; no sale recorded2017-10-16: US$23.95; no sale recorded2017-10-21: US$20.00; no sale recorded2017-10-27: US$20.00; no sale recorded2017-10-27: US$21.95; no sale recorded2017-10-31: US$49.99; no sale recorded2017-11-01: US$20.00; no sale recorded2017-11-05: US$30.00; no sale recorded2017-11-06: US$29.95; no sale recorded2017-11-08: US$20.00; no sale recorded2017-12-09: US$19.75; no sale recorded2017-12-30: US$49.99; no sale recorded2018-01-02: US$16.95; no sale recorded2018-01-09: US$14.95; no sale recorded2018-01-15: US$20.00; no sale recorded2018-01-17: US$13.45; no sale recorded2018-01-21: US$13.95; no sale recorded2018-01-26: US$13.95; no sale recorded2018-01-29: US$49.99; no sale recorded2018-01-31: US$12.55; no sale recorded2018-02-07: US$14.95; no sale recorded2018-02-16: US$20.00; no sale recorded2018-02-28: US$49.99; no sale recorded2018-03-05: US$30.00; no sale recorded2018-03-18: US$20.00; no sale recorded2018-03-30: US$49.99; no sale recorded2018-04-17: US$20.00; no sale recorded2018-04-29: US$49.99; no sale recorded2018-05-04: US$30.00; no sale recorded2018-05-18: US$20.00; no sale recorded2018-06-03: US$30.00; no sale recorded2018-06-18: US$20.00; no sale recorded2018-06-28: US$49.99; no sale recorded2018-07-03: US$30.00; no sale recorded2018-08-23: US$9.95; no sale recorded2018-08-28: US$7.95; no sale recorded2018-09-01: US$30.00; no sale recorded2018-09-04: US$7.95; no sale recorded2018-09-11: US$7.95; no sale recorded2018-09-19: US$20.00; no sale recorded2018-09-19: US$7.95; no sale recorded2018-09-26: US$7.95; no sale recorded2018-09-26: US$49.99; no sale recorded2018-10-01: US$30.00; no sale recorded2018-10-03: US$7.95; no sale recorded2018-10-10: US$7.95; no sale recorded2018-10-21: US$20.00; no sale recorded2020-07-07: US$29.68; no sale recorded2021-03-07: US$25.00; no sale recorded2021-04-13: US$35.00; no sale recorded2022-06-18: US$138.53; no sale recorded2022-07-11: US$74.99; no sale recorded2022-07-15: US$144.99; no sale recorded2023-03-04: US$402.00; no sale recorded2023-03-15: US$143.95; no sale recorded2023-04-25: US$1.00; no sale recorded2023-06-05: US$404.00; no sale recorded2023-11-02: US$1940.00; no sale recorded2023-11-02: US$453.33; no sale recorded2023-11-02: US$117.73; no sale recorded2024-05-24: US$16.72; sold recorded2024-06-08: US$373.43; no sale recorded2024-06-09: US$352.99; no sale recorded2024-06-09: US$345.51; sold recorded2024-06-09: US$376.92; no sale recorded2024-06-24: US$345.00; no sale recorded2024-06-27: US$335.51; no sale recorded2024-06-28: US$333.51; sold recorded2024-07-01: US$335.51; no sale recorded2024-07-01: US$354.24; no sale recorded2024-07-02: US$335.51; no sale recorded2024-08-07: US$89.99; no sale recorded2024-08-11: US$349.00; no sale recorded2024-08-26: US$375.41; no sale recorded2024-09-06: US$345.51; no sale recorded2024-09-19: US$347.01; no sale recorded2024-10-05: US$416.58; no sale recorded2024-10-05: US$453.33; no sale recorded2024-10-05: US$117.73; no sale recorded2024-10-15: US$111.48; no sale recorded2024-10-16: US$403.83; no sale recorded2024-10-29: US$29.99; no sale recorded2024-11-07: US$320.00; no sale recorded2024-11-07: US$320.00; no sale recorded2025-01-09: US$327.00; sold recorded2025-01-22: US$17.99; no sale recorded2025-01-26: US$327.00; sold recorded2025-02-03: US$119.08; sold recorded2025-02-10: US$319.98; sold recorded2025-03-27: US$320.00; sold recorded2025-04-09: US$327.00; no sale recorded2025-04-26: US$320.00; sold recorded2025-05-02: US$550.00; no sale recorded2025-05-15: US$897.00; no sale recorded2025-05-26: US$337.93; no sale recorded2025-05-26: US$337.35; no sale recorded2025-07-27: US$30.00; no sale recorded2025-09-08: US$77.88; no sale recorded2025-09-08: US$79.96; no sale recorded2025-10-07: US$394.99; no sale recorded2025-10-15: US$350.40; no sale recorded2025-10-20: US$38.99; no sale recorded2025-10-31: US$255.00; no sale recorded2025-12-07: US$394.99; no sale recorded2026-01-02: US$134.99; no sale recorded2026-01-15: US$280.00; no sale recorded2026-03-01: US$28.12; no sale recorded2026-03-07: US$394.99; no sale recorded2026-05-13: US$294.99; no sale recorded2026-06-01: US$1940.00; no sale recorded2026-07-01: US$1940.00; no sale recorded
Sold recordedNo sale recordedMonthly median

Logarithmic price scale (price + 1). Dates are listing starts.

Median recorded price, all years$44.49

136 plotted records from 136 US-dollar records in this range. Monthly medians use all records in each calendar month.

Archived listings

139 recorded listings
Listing startArchived listingConditionRecorded priceQty soldArchive statusCountry
06 Jul 2026Siemens SM321 6ES7 321-1EH01-0AA0 S7 Digital PLC Input Module ✅eBay 178289330386Used45.07 [CA]0Recorded activeCA
01 Jul 2026SIEMENS 6ES7 321-1EH01-0AA0 MODULE NSMPeBay 366515376031New$1940.000Recorded activeUS
01 Jun 2026SIEMENS 6ES7 321-1EH01-0AA0 MODULE NSMPeBay 157958899751New$1940.000Recorded activeUS
13 May 2026Siemens Input Module 6ES7 321-1EH01-0AA0 Simatic S7. SET OF3 UNITS.eBay 157907649980Used$294.990Recorded activeUS
07 Mar 2026Siemens Input Module 6ES7 321-1EH01-0AA0 Simatic S7. SET OF3 UNITS.eBay 157733547185Used$394.990Recorded activeUS
01 Mar 2026Siemens SM321 6ES7 321-1EH01-0AA0 S7 Digital PLC Input ModuleeBay 389684645996Used$28.120Recorded activeUS
15 Jan 2026Siemens SIMATIC S7 SM321 Digital PLC Input Module 6ES7 321-1EH01-0AA0eBay 177781465790New$280.000Recorded activeUS
02 Jan 2026Siemens 6ES7 321-1EH01-0AA0 Digital Input Module 79-132VAC 3.4-7.6MAeBay 389444062908Used$134.990Recorded activeIN
07 Dec 2025Siemens Input Module 6ES7 321-1EH01-0AA0 Simatic S7. SET OF3 UNITS.eBay 157528997592Used$394.990Recorded activeUS
31 Oct 2025Siemens New In Box 6ES7 321-1EH01-0AA0 / 6ES7 321-1EH01-0AA0 PLC ModuleeBay 317484707299New$255.000Recorded activeCN
20 Oct 2025SIEMENS 6ES7 321-1EH01-0AA0 INPUT MODULE TERMINAL BLOCKeBay 236402613309Used$38.990Recorded activeUS
15 Oct 20256ES7 321-1EH01-0AA0 SIEMENS NEW6ES7321-1EH01-0AA0 S7-300 DIGITAL INPUT MODULEeBay 286878520643New$350.400Recorded activeCN
07 Oct 2025Siemens Input Module 6ES7 321-1EH01-0AA0 Simatic S7. SET OF3 UNITS.eBay 157373696509Used$394.990Recorded activeUS
08 Sep 2025Siemens 6ES7 321-1EH01-0AA0 Input ModuleeBay 127359066927Used$79.960Recorded activeUS
08 Sep 2025Siemens Input Module 6ES7 321-1EH01-0AA0eBay 116770800079Used$77.880Recorded activeUS
27 Jul 2025SIEMENS 6ES7 321-1EH01-0AA0 INPUT MODULE (AS PICTURED) UNMPeBay 157202616057Used$30.000Recorded activeUS
26 May 20251P 6ES7 321-1EH01-0AA0 Siemens Accept counteroffereBay 157028169690Used$337.350Recorded activeCN
26 May 2025one 6ES7 321-1EH01-0AA0 Siemens Welcome counteroffereBay 286598854309Used$337.930Recorded activeCN
15 May 2025SIEMENS 6ES7 321-1EH01-0AA0 120VAC NSNPeBay 156990787677New - Open box$897.000Recorded activeUS
02 May 2025Siemens 6ES7 321-1EH01-0AA0 SM321 Digital Input ModuleeBay 326561113115Used$550.000Recorded activeUS
26 Apr 2025Siemens New In Box 6ES7 321-1EH01-0AA0 / 6ES7 321-1EH01-0AA0 PLC ModuleeBay 388324089923New$320.001Sold recordedCN
09 Apr 2025Siemens New In Box 6ES7 321-1EH01-0AA0 / 6ES7 321-1EH01-0AA0 PLC ModuleeBay 316624514826New$327.000Recorded activeCN
27 Mar 2025Siemens New In Box 6ES7 321-1EH01-0AA0 / 6ES7 321-1EH01-0AA0 PLC ModuleeBay 388156077536New$320.001Sold recordedCN
10 Feb 2025New In Box Siemens 6ES7 321-1EH01-0AA0 / 6ES7 321-1EH01-0AA0 PLC ModuleeBay 126933117522New$319.981Sold recordedCN
03 Feb 2025Siemens 6es7 321-1eh01-0aa0 input moduleeBay 405518146855Used$119.081Sold recordedIN
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

6ES7321-1CH20-0AA0321-1CH20-2AA06ES7321-1CH80-0AA06ES7321-1EL00-0AA0321-1EL00-0AA0.NEW321-1FF0-0AA0

Related part numbers

3VL1725-1EH43-0AA06ES7331-7KF02-0AB06SN1145-1AA01-0AA16SN1118-0AA11-0AA06ES7318-3EL01-0AB06SN1113-1AB01-0BA16ES7550-1AA01-0AB03VA2340-6HN32-0AA03VA2463-6HN32-0AA06EP3310-6SB00-0AY06SN1121-0BA11-0AA16GK7243-2AX01-0XA06SN1118-0AA11-0AA16ES7414-2XG01-0AB06ES7194-4GB60-0AA0

Search current eBay listings