Siemens 6ES5451-7LA12 – SIMATIC S5 digital output 451, 32 DO 24 V DC, 0.5 A, isolated
Siemens 6ES5 451-7LA12 – 451-7 Dig. Output 32DO DC24V/0.5A from the S5-115 range. Status: discontinued by the manufacturer, no longer available new since October 2022. Van Haelen supplies it refurbished or new in sealed factory packaging, with a 24-month warranty.
Also written as: 6ES5451-7LA12, 6ES54517LA12
The Siemens 6ES5451-7LA12 is the SIMATIC S5 digital output module 451 with 32 outputs 24 V DC, 0.5 A. The outputs are isolated. Its predecessor was the 6ES5451-7LA11. SIMATIC S5 is the earlier Siemens controller generation; replacement modules keep existing installations running without converting to a new controller. EAN 4025515053880. Siemens keeps this type as a spare part, reports it as no longer available and discontinued it on 1 October 2022; no successor is specified. When replacing, switch off the supply of the S5 system, plug the module in at the same position, carry over the wiring or the front connector of the old module and after switching on check the channels.
Available as
Product data
| Manufacturer | Siemens |
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| Part number | 6ES5 451-7LA12 |
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| Type designation | 451-7 Dig. Output 32DO DC24V/0.5A |
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| Series | S5-115 |
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| Manufacturer status | discontinued by the manufacturer, no longer available new since October 2022 |
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| Predecessor | 6ES5451-7LA11 |
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| ETIM | EC001419 |
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| HS code | 85389091 |
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| Weight | 0,745 kg |
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| Dimensions | 31,5 x 21,7 x 5,00 cm |
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Documentation from the manufacturer
All products of the S5-115 series
All PLC I/O modules
Frequently asked questions
Is the 6ES5 451-7LA12 still available?
Not new from the manufacturer any more: the 6ES5 451-7LA12 was discontinued since October 2022. Van Haelen supplies it refurbished and tested.
Does the 6ES5 451-7LA12 replace the 6ES5451-7LA11?
Yes. According to the manufacturer the 6ES5 451-7LA12 is the successor of the 6ES5451-7LA11. Before replacing, check that the project and the connections match the new version; if in doubt we also supply the 6ES5451-7LA11 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.