Siemens 6ES5955-3LC14 – 955-3LC14 135-3UA11 Stromversorgung E09
Siemens 6ES5955-3LC14 – 955-3LC14 135-3UA11 Stromversorgung E09 from the S5-135/155 range. Status: discontinued by the manufacturer, no longer available new; successor 6ES5955-3LC41. Van Haelen supplies it refurbished, with a 24-month warranty.
Also written as: 6ES5 955-3LC14, 6ES59553LC14
The Siemens 6ES5955-3LC14 is a Simatic S5 control component from the Simatic S5 (S5-135/155) range. Manufacturer type designation: 955-3LC14 135-3UA11 Stromversorgung E09. Status: discontinued by the manufacturer, no longer available new; successor according to the manufacturer: 6ES5955-3LC41. Key data: weight 4.44 kg, dimensions 46,00 x 33,7 x 11,1 cm, HS code 85044090. Ask us about exchange, repair and a spare-parts pool for your installation.
Available as
Product data
| Manufacturer | Siemens |
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| Part number | 6ES5955-3LC14 |
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| Type designation | 955-3LC14 135-3UA11 Stromversorgung E09 |
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| Series | S5-135/155 |
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| Manufacturer status | discontinued by the manufacturer, no longer available new |
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| Predecessor | 6ES5955-3LC13 |
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| Successor | 6ES5955-3LC41 |
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| ETIM | EC001419 |
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| HS code | 85044090 |
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| Country of origin | AT |
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| Weight | 4,44 kg |
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| Dimensions | 46,00 x 33,7 x 11,1 cm |
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Documentation from the manufacturer
All products of the S5-135/155 series
Faults and fixes 6ES5955-3LC14
Problems with 6ES5955-3LC14: no 24 V, LED off or flashing
LED off: check the mains voltage and the input fuse. LED flashing or the output coming back briefly again and again: the supply is in overload protection (hiccup), usually because of a short circuit or too heavy a load on the 24 V side. Disconnect the load: if the 24 V returns, the fault is in the installation, not in the supply.
6ES5955-3LC14: output voltage sags or ripple increases
A supply that sags under load after years or shows more ripple usually has aged electrolytic capacitors. This shows as sporadic CPU resets, modules reporting SF or panels restarting. Replacement is then the reliable remedy; a refurbishment replaces these capacitors and tests the supply under load.
Fault not fixed: replace, exchange or repair the 6ES5955-3LC14?
Replacing from stock is the fastest route when a machine is down. Van Haelen supplies the 6ES5955-3LC14 refurbished: tested to this family's test protocol, with a test report per serial number, with a 24-month warranty. The current lead time is shown with the condition on this page. Prefer an exchange: you get a refurbished unit straight away and return the faulty one within 14 days. Repairing your own unit is also possible: diagnosis, then a fixed price.
What information should I send for a quick diagnosis?
A photo of the rating plate (order number, product version, firmware), the exact fault code or LED state, when the fault occurs (at power-up, on enable, under load) and what you have already tried. For PLCs an export of the diagnostic buffer, for drives the parameter set. With that we can usually say the same day whether replacing, exchanging or repairing is best.
Frequently asked questions
Is the 6ES5955-3LC14 still available?
Not new from the manufacturer any more: the 6ES5955-3LC14 was discontinued. Van Haelen supplies it refurbished and tested.
What is the successor of the 6ES5955-3LC14?
According to the manufacturer it is the 6ES5955-3LC41. A successor does not always fit an existing installation without changes; replacing like for like is often the fastest route. If in doubt, ask us.
Does the 6ES5955-3LC14 replace the 6ES5955-3LC13?
Yes. According to the manufacturer the 6ES5955-3LC14 is the successor of the 6ES5955-3LC13. Before replacing, check that the project and the connections match the new version; if in doubt we also supply the 6ES5955-3LC13 itself, refurbished or new, as long as it can be found.
What does refurbished mean?
Cleaned, inspected, aged or critical components replaced and tested to our test protocol for this product family. You get a 24-month warranty, a test report and a serial number label.
Can I exchange or repair my faulty unit?
Yes. With an exchange Van Haelen supplies a refurbished unit straight away and you return the faulty one. With a repair you first get a diagnosis and then a fixed price, with test report and warranty.