Features:
- Switches thirty-two discrete 24 V DC loads from one SIMATIC S5 slot.
- Provides up to 0.5 A per output with documented short-circuit protection.
- Reports output-side faults through the module alarm behavior.
The exact spare is 6ES5451-4UA12, a 32-output 24 V DC module in the SIMATIC S5 family.
It translates S5 control commands into protected transistor outputs for panel and machine actuators.
Confirm rack, address, connector, supply grouping, load current, and program logic before moving field wiring.
Availability is subject to Apter Power inventory and sourcing confirmation.
Verified resources for Siemens 6ES5451-4UA12:
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.
- Control solenoids, interface relays, lamps, and other 24 V DC industrial loads.
- Maintain established S5-115U output sections that require the exact 32-channel configuration.
- Restore a failed output bank after wiring and the original short-circuit cause have been resolved.
- Short-circuit protection limits damage when an output circuit is overloaded or faulted.
- The module alarm should be incorporated into troubleshooting before a board is replaced.
- Investigate field wiring, load inrush, and suppression so a replacement does not repeat the failure.
- Each channel is specified for 5 mA to 0.5 A within the overall operating limits.
- The on-state voltage remains above the 24 V supply minus the documented 1.5 V drop.
- Outputs must not be connected in parallel to increase current capacity.
- Thirty-two outputs occupy one documented rack slot, supporting dense cabinet construction.
- Field cables may extend to the documented maximum when installation rules and voltage drop are satisfied.
- Low off-state residual current and voltage support predictable de-energized load behavior.