PartHistory
Siemens / PLCs and I/O (SIMATIC)

6ES5951-7NB21

PLCs and I/O (SIMATIC) family illustration
Recorded listings
136
Recorded quantity sold
11
Median recorded price
$337.5089 US-dollar records
Recorded price range
$46.22to $5274.00 USD
First listing start: 07 Apr 2017Last listing start: 19 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 2021Feb 2024Jun 20262017-04-07: US$507.99; no sale recorded2017-04-13: US$480.07; no sale recorded2017-05-06: US$441.26; no sale recorded2017-07-18: US$328.09; no sale recorded2017-08-20: US$337.50; no sale recorded2017-09-26: US$337.50; no sale recorded2018-01-04: US$275.87; no sale recorded2018-01-10: US$331.74; no sale recorded2018-01-14: US$307.68; no sale recorded2018-01-25: US$337.00; no sale recorded2018-04-25: US$337.50; no sale recorded2018-05-29: US$788.00; no sale recorded2018-08-09: US$5274.00; no sale recorded2018-08-09: US$425.10; no sale recorded2018-09-27: US$299.00; no sale recorded2019-09-24: US$436.87; no sale recorded2019-09-24: US$46.22; no sale recorded2019-10-04: US$421.29; no sale recorded2019-10-29: US$444.12; no sale recorded2019-12-02: US$202.05; no sale recorded2019-12-16: US$335.00; no sale recorded2019-12-17: US$335.00; no sale recorded2020-02-10: US$310.00; no sale recorded2020-12-15: US$786.04; no sale recorded2021-06-17: US$182.00; no sale recorded2022-04-12: US$859.77; no sale recorded2022-05-03: US$1221.30; no sale recorded2022-06-01: US$891.57; no sale recorded2022-09-04: US$429.89; no sale recorded2022-11-02: US$334.33; no sale recorded2022-12-05: US$779.00; no sale recorded2023-03-04: US$1403.00; no sale recorded2023-03-06: US$779.00; no sale recorded2023-04-14: US$594.98; no sale recorded2023-05-16: US$275.48; no sale recorded2023-05-16: US$273.96; no sale recorded2024-02-03: US$271.57; no sale recorded2024-03-04: US$272.58; no sale recorded2024-04-03: US$321.59; no sale recorded2024-04-11: US$588.96; sold recorded2024-04-17: US$597.96; no sale recorded2024-04-17: US$251.00; no sale recorded2024-05-03: US$325.97; no sale recorded2024-06-01: US$325.55; no sale recorded2024-06-03: US$588.96; no sale recorded2024-06-17: US$229.00; no sale recorded2024-07-01: US$322.34; no sale recorded2024-07-01: US$178.20; no sale recorded2024-07-16: US$287.24; no sale recorded2024-07-17: US$399.00; no sale recorded2024-08-30: US$2624.33; sold recorded2024-09-29: US$327.95; no sale recorded2024-10-29: US$317.48; no sale recorded2024-11-29: US$316.25; sold recorded2024-12-29: US$313.04; sold recorded2025-01-28: US$315.89; sold recorded2025-02-13: US$460.00; no sale recorded2025-02-18: US$190.00; no sale recorded2025-02-27: US$314.60; sold recorded2025-03-02: US$207.18; sold recorded2025-03-25: US$598.96; no sale recorded2025-03-29: US$323.90; sold recorded2025-03-30: US$133.33; no sale recorded2025-04-13: US$332.77; no sale recorded2025-04-16: US$642.57; no sale recorded2025-04-18: US$759.88; no sale recorded2025-05-02: US$187.16; no sale recorded2025-05-28: US$340.67; no sale recorded2025-07-02: US$170.00; no sale recorded2025-07-22: US$5274.00; no sale recorded2025-09-05: US$349.40; no sale recorded2025-10-06: US$350.33; no sale recorded2025-10-07: US$891.57; no sale recorded2025-10-07: US$277.31; no sale recorded2025-11-05: US$344.72; no sale recorded2025-11-28: US$173.11; no sale recorded2025-12-15: US$566.02; no sale recorded2025-12-17: US$530.56; no sale recorded2026-01-03: US$154.59; no sale recorded2026-01-03: US$386.78; no sale recorded2026-01-14: US$293.74; no sale recorded2026-01-23: US$293.74; no sale recorded2026-01-25: US$293.74; no sale recorded2026-03-13: US$798.96; no sale recorded2026-03-17: US$378.76; no sale recorded2026-03-30: US$594.88; no sale recorded2026-04-17: US$389.29; no sale recorded2026-05-24: US$382.62; no sale recorded2026-06-09: US$808.60; 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 2021Jun 20262017-04-07: US$507.99; no sale recorded2017-04-13: US$480.07; no sale recorded2017-05-06: US$441.26; no sale recorded2017-07-18: US$328.09; no sale recorded2017-08-20: US$337.50; no sale recorded2017-09-26: US$337.50; no sale recorded2018-01-04: US$275.87; no sale recorded2018-01-10: US$331.74; no sale recorded2018-01-14: US$307.68; no sale recorded2018-01-25: US$337.00; no sale recorded2018-04-25: US$337.50; no sale recorded2018-05-29: US$788.00; no sale recorded2018-08-09: US$5274.00; no sale recorded2018-08-09: US$425.10; no sale recorded2018-09-27: US$299.00; no sale recorded2019-09-24: US$436.87; no sale recorded2019-09-24: US$46.22; no sale recorded2019-10-04: US$421.29; no sale recorded2019-10-29: US$444.12; no sale recorded2019-12-02: US$202.05; no sale recorded2019-12-16: US$335.00; no sale recorded2019-12-17: US$335.00; no sale recorded2020-02-10: US$310.00; no sale recorded2020-12-15: US$786.04; no sale recorded2021-06-17: US$182.00; no sale recorded2022-04-12: US$859.77; no sale recorded2022-05-03: US$1221.30; no sale recorded2022-06-01: US$891.57; no sale recorded2022-09-04: US$429.89; no sale recorded2022-11-02: US$334.33; no sale recorded2022-12-05: US$779.00; no sale recorded2023-03-04: US$1403.00; no sale recorded2023-03-06: US$779.00; no sale recorded2023-04-14: US$594.98; no sale recorded2023-05-16: US$275.48; no sale recorded2023-05-16: US$273.96; no sale recorded2024-02-03: US$271.57; no sale recorded2024-03-04: US$272.58; no sale recorded2024-04-03: US$321.59; no sale recorded2024-04-11: US$588.96; sold recorded2024-04-17: US$597.96; no sale recorded2024-04-17: US$251.00; no sale recorded2024-05-03: US$325.97; no sale recorded2024-06-01: US$325.55; no sale recorded2024-06-03: US$588.96; no sale recorded2024-06-17: US$229.00; no sale recorded2024-07-01: US$322.34; no sale recorded2024-07-01: US$178.20; no sale recorded2024-07-16: US$287.24; no sale recorded2024-07-17: US$399.00; no sale recorded2024-08-30: US$2624.33; sold recorded2024-09-29: US$327.95; no sale recorded2024-10-29: US$317.48; no sale recorded2024-11-29: US$316.25; sold recorded2024-12-29: US$313.04; sold recorded2025-01-28: US$315.89; sold recorded2025-02-13: US$460.00; no sale recorded2025-02-18: US$190.00; no sale recorded2025-02-27: US$314.60; sold recorded2025-03-02: US$207.18; sold recorded2025-03-25: US$598.96; no sale recorded2025-03-29: US$323.90; sold recorded2025-03-30: US$133.33; no sale recorded2025-04-13: US$332.77; no sale recorded2025-04-16: US$642.57; no sale recorded2025-04-18: US$759.88; no sale recorded2025-05-02: US$187.16; no sale recorded2025-05-28: US$340.67; no sale recorded2025-07-02: US$170.00; no sale recorded2025-07-22: US$5274.00; no sale recorded2025-09-05: US$349.40; no sale recorded2025-10-06: US$350.33; no sale recorded2025-10-07: US$891.57; no sale recorded2025-10-07: US$277.31; no sale recorded2025-11-05: US$344.72; no sale recorded2025-11-28: US$173.11; no sale recorded2025-12-15: US$566.02; no sale recorded2025-12-17: US$530.56; no sale recorded2026-01-03: US$154.59; no sale recorded2026-01-03: US$386.78; no sale recorded2026-01-14: US$293.74; no sale recorded2026-01-23: US$293.74; no sale recorded2026-01-25: US$293.74; no sale recorded2026-03-13: US$798.96; no sale recorded2026-03-17: US$378.76; no sale recorded2026-03-30: US$594.88; no sale recorded2026-04-17: US$389.29; no sale recorded2026-05-24: US$382.62; no sale recorded2026-06-09: US$808.60; no sale recorded
Sold recordedNo sale recordedMonthly median

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

Median recorded price, all years$337.50

89 plotted records from 89 US-dollar records in this range. Monthly medians use all records in each calendar month.

Archived listings

136 recorded listings
Listing startArchived listingConditionRecorded priceQty soldArchive statusCountry
19 Jul 2026Siemens Simatic S5 Power Supply 6ES5951-7NB21 6ES5 951-7NB21eBay 198508632193Gebraucht34.31 [DE]0Recorded activeDE
01 Jul 2026Siemens Simatic 6ES5951-7NB21eBay 168507321443D'occasion188.19 [CA]0Recorded activeDE
20 Jun 2026Siemens Simatic S5 6ES5951-7NB21 / 6ES5 951-7NB21 / New Original PackagingeBay 127932335552Neu: Sonstige (siehe Artikelbeschreibung)687.11 [DE]0Recorded activeDE
09 Jun 2026SIEMENS NEW 6ES5951-7NB21 PLC Simatic S5 Power Supply DC 24V, 3AeBay 236866829456New$808.600Recorded activeUS
24 May 2026Siemens Power Supply 6ES5951-7NB21 / *E: 01eBay 178159911284New$382.620Recorded activeDE
18 May 2026Siemens Simatic S5 6ES5951-7NB21 / 6ES5 951-7NB21 / New Original PackagingeBay 406935369604Neu: Sonstige (siehe Artikelbeschreibung)696.34 [DE]0Recorded activeDE
17 Apr 2026Siemens Power Supply 6ES5951-7NB21 / *E: 01eBay 178056973199New$389.290Recorded activeDE
16 Apr 2026Siemens Simatic S5 6ES5951-7NB21 / 6ES5 951-7NB21 / New Original PackagingeBay 127813840703Neu: Sonstige (siehe Artikelbeschreibung)706.76 [DE]0Recorded activeDE
14 Apr 2026Siemens Simatic S5 6ES5 951-7NB21 6ES5951-7NB21 E-Stand: 01 -Unused/Original Packaging-eBay 406857313069Neu: Sonstige (siehe Artikelbeschreibung)469.18 [DE]0Recorded activeDE
30 Mar 2026 SIEMENS 6ES5951-7NB21 POWER SUPPLY MODULE_6ES59517NB21_SIMATIC S5eBay 168272873400New$594.880Recorded activeCN
17 Mar 2026Siemens Power Supply 6ES5951-7NB21 / *E: 01eBay 177967528786New$378.760Recorded activeDE
13 Mar 2026SIEMENS NEW 6ES5951-7NB21 PLC Simatic S5 Power Supply DC 24V, 3AeBay 317995794163New$798.960Recorded activeUS
01 Mar 2026Siemens Simatic S5 6ES5951-7NB21 / 6ES5 951-7NB21 / New Original PackagingeBay 406729711867Neu: Sonstige (siehe Artikelbeschreibung)707.54 [DE]0Recorded activeDE
07 Feb 2026Siemens Simatic S5 6ES5 951-7NB21 6ES5951-7NB21 E-Stand: 01 -Unused/Original Packaging-eBay 406679112245Neu: Sonstige (siehe Artikelbeschreibung)471.42 [DE]0Recorded activeDE
25 Jan 2026SIEMENS 6ES5951-7NB21 / 6ES59517NB21 (USED)eBay 317799387188Used$293.740Recorded activeUS
23 Jan 2026SIEMENS 6ES5951-7NB21 / 6ES59517NB21 (USED)eBay 397526130733Used$293.740Recorded activeUS
14 Jan 2026SIEMENS 6ES5951-7NB21 / 6ES59517NB21 (USED)eBay 236581022038Used$293.740Recorded activeUS
11 Jan 2026Siemens Simatic S5 6ES5951-7NB21 / 6ES5 951-7NB21 / New Original PackagingeBay 127616263814Neu: Sonstige (siehe Artikelbeschreibung)697.06 [DE]0Recorded activeDE
03 Jan 2026Siemens Power Supply 6ES5951-7NB21 / *E: 01eBay 177740307636New$386.780Recorded activeDE
03 Jan 2026New, Siemens 6ES5951-7NB21 [24 Months Warranty]eBay 177738295237New - Open box$154.590Recorded activeCZ
17 Dec 2025SIEMENS NEW 6ES5951-7NB21 PLC Simatic S5 Power Supply DC 24V, 3AeBay 168010623669New$530.560Recorded activeCN
15 Dec 2025SIEMENS NEW 6ES5951-7NB21 PLC Simatic S5 Power Supply DC 24V, 3AeBay 317660262291New$566.020Recorded activeCN
28 Nov 2025SIEMENS SIMATIC S5 6ES5951-7NB21 E1 6ES5 951-7NB21eBay 317597884234Used$173.110Recorded activeDE
06 Nov 2025Siemens Simatic S5 6ES5951-7NB21 / 6ES5 951-7NB21 / New Original PackagingeBay 406354946423Neu: Sonstige (siehe Artikelbeschreibung)687.77 [DE]0Recorded activeDE
05 Nov 2025Siemens Power Supply 6ES5951-7NB21 / *E: 01eBay 177549418594New$344.720Recorded activeDE
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

6ES5951-7NB126ES5951-7NB136ES5951-7NB13POWER6ES5951-7ND116ES5951-7ND126ES5951-7ND12HP

Related part numbers

6ES5458-7LA116ES5924-3SA116ES5923-3UA116ES5095-8MA016ES5458-7LA126ES5752-0AA226ES5955-3LC146ES5922-3UA116ES5441-8MA116ES5431-4UA126ES5700-8MA116ES5095-8MA036ES5760-1AA116ES5752-0AA126ES7151-8AB01-0AB0

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