Features:
- The ordered configuration is a compact isolated SIMATIC S5 451-4 digital output module with 32 outputs rated 24 V DC and 0.5 A.
- In service, the hardware switches discrete field loads from the S5 control program through the U-periphery output path.
- Correct selection depends on S5 rack position, front connector, output grouping, load current, protective devices and the complete 4UA14 order code.
The current order is identified by the complete 6ES5451-4UA14 marking and its documented relationship to SIMATIC S5 U Periphery.
The hardware is used in legacy SIMATIC S5 cabinets controlling solenoids, relays, indicators and other 24 V DC loads, where it switches discrete field loads from the S5 control program through the U-periphery output path.
Installation planning must account for S5 rack position, front connector, output grouping, load current, protective devices and the complete 4UA14 order code. Siemens deleted this model without replacement; document every field conductor and test output groups before restart
Availability is confirmed against the complete model, revision, quantity and delivery destination.
Verified resources for Siemens 6ES5451-4UA14:
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Supports legacy SIMATIC S5 cabinets controlling solenoids, relays, indicators and other 24 V DC loads without changing the documented host architecture.
- Serves maintenance teams restoring the original SIMATIC S5 U Periphery signal, control or power path.
- Fits modernization planning when the existing installation must remain operational while a long-term migration is evaluated.
- Operate the unit only inside the environmental limits published for the complete SIMATIC S5 U Periphery assembly.
- Cabinet temperature, condensation control, contamination and airflow remain installation-level responsibilities.
- Storage and transport conditions should protect connectors, electronics and calibration-sensitive elements before commissioning.
- System matching is governed by S5 rack position, front connector, output grouping, load current, protective devices and the complete 4UA14 order code.
- The surrounding SIMATIC S5 U Periphery hardware must retain the connector, addressing and project relationships documented for this order code.
- A cross-family or partial-number substitution is not approved unless the OEM service record explicitly defines it against other 451-4 output variants.
- Compliance is determined by the complete SIMATIC S5 U Periphery installation and the approvals applicable to this order code.
- Cabinet construction, field wiring and environmental controls must preserve the conditions stated in the OEM documentation.
- Project records should retain the nameplate, declarations and installation manual used for the final conformity assessment.