Features:
- Presents sixteen individually isolated relay-output paths.
- Operates its relay section from a 24 V DC supply.
- Uses individual slow fuses and supports defined RC suppression options.
The 4UA12 suffix denotes this specific sixteen-contact 458 arrangement, including its compact width and relay-supply requirements.
Mechanical contacts let the S5 program switch field circuits with isolation that differs from a transistor-output card.
Identify which loads use RC modules and note their operating frequency before removal. Verify contact condition and field voltage before the front wiring is reconnected.
6ES5458-4UA12 is reviewed with its contact suppression and 24 V relay-supply arrangement.
Verified resources for Siemens 6ES5458-4UA12:
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.
- Operate isolated interposing circuits from a compact S5 relay-output position.
- Switch moderate AC or DC loads through approved RC-protected contacts.
- Maintain individual fused relay channels in an established S5-135U cabinet.
- Apply the official RC-equipped and unequipped contact tables to the actual load circuit.
- Keep UL and general VDE switching limits distinguished in design records.
- Use the specified slow fuse rather than increasing the rating after a nuisance operation.
- Observe contact response at the load because a commanded bit does not prove mechanical closure.
- Track repeated fuse operation as evidence of an external fault or excessive inrush.
- Include relay-cycle history when assessing an ageing output used at high frequency.
- Keep every field circuit within its documented voltage, current and switching-frequency limits.
- Maintain the required separation among sixteen isolated output conductors.
- Record the fitted suppression components as part of the validated panel configuration.