Siemens 6ES5525-3UA21 – CP 525 Communications Processor
Siemens 6ES5525-3UA21 – CP 525 Communications Processor from the Siemens SIMATIC S5 plc parts (gebruikt) range. Status: discontinued by the manufacturer, no longer available new since March 2010. Van Haelen supplies it refurbished or new in sealed factory packaging, with a 24-month warranty.
Also written as: 6ES5 525-3UA21, 6ES55253UA21
The Siemens 6ES5525-3UA21 is a Simatic S5 control component from the Siemens Simatic S5 plc parts (gebruikt) range. Manufacturer type designation: CP 525 Communications Processor. Status: discontinued by the manufacturer, no longer available new since March 2010. Key data: weight 0.519 kg, HS code 85389091. 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 | 6ES5525-3UA21 |
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| Type designation | CP 525 Communications Processor |
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| Series | Siemens SIMATIC S5 plc parts (gebruikt) |
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| Manufacturer status | discontinued by the manufacturer, no longer available new since March 2010 |
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| ETIM | EC001423 |
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| HS code | 85389091 |
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| Weight | 0,519 kg |
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Documentation from the manufacturer
All products of the Siemens SIMATIC S5 plc parts (gebruikt) series
All Communication and network modules
Faults and fixes 6ES5525-3UA21
Is the 6ES5525-3UA21 discontinued or in phase-out?
Siemens has published a product note on this (27-08-1996): "CP 525 to Be Discontinued". Phase-out or discontinued means new units get scarce or stop; we supply the 6ES5525-3UA21 refurbished and tested from stock, with a 24-month warranty.
Source: Siemens Industry Online Support, 27-08-1996
Where do I find the manual of the 6ES5525-3UA21?
From the manufacturer, free of charge: COM 525 Programming Package for the Communication Processors CP 524 and CP525 (S5-DOS) Volume 1/2 (link below). They contain the wiring diagram, LED meanings and the technical data. With every refurbished unit we supply the test report per serial number.
Source: Siemens Industry Online Support, 04-06-2003
Frequently asked questions
Is the 6ES5525-3UA21 still available?
Not new from the manufacturer any more: the 6ES5525-3UA21 was discontinued since March 2010. Van Haelen supplies it refurbished and tested.
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.