24 V DC uninterruptible supply
SITOP DC UPS
DC UPS modules that maintain the 24 V automation supply through brief interruptions or extended outages when combined with the appropriate energy storage.
Used to avoid uncontrolled PLC/HMI shutdown, preserve process data or keep essential control and communication loads alive.
Request exact article number Selection is confirmed against motor, I/O, network and destination data.
Technical parameters
Selection data
These values describe the product family and the decisions behind selection. The exact datasheet is tied to the complete Siemens article number.
ParameterFamily rangeEngineering note
SystemUPS module plus battery or capacitor storageStorage chemistry and capacity depend on bridge time and maintenance plan.
Voltage24 V DC automation architectureConfirm load voltage tolerance and charging conditions.
Bridge timeMinutes to extended durations by storage selectionCalculate from critical load, ageing, temperature and shutdown sequence.
CommunicationDiagnostics and system integration by UPS variantDefine alarms, remaining time and controlled shutdown behavior.
Load sheddingCritical/non-critical branch separationUse selectivity or contactors to preserve essential loads.
MaintenanceBattery health and replacement planningExport, shipping and destination rules for batteries must be reviewed.
Common search questions
Quick answers for SITOP DC UPS.
Family guidance narrows the request. The exact Siemens article number remains the final commercial and technical identity.
What is SITOP DC UPS best suited for?
Used to avoid uncontrolled PLC/HMI shutdown, preserve process data or keep essential control and communication loads alive. Typical applications include plc backup, industrial pc shutdown, network uptime.
Which information is required to select SITOP DC UPS?
Start with critical 24 v load, required bridge time, controlled shutdown sequence, ambient temperature. Final ratings and accessories are confirmed against the full article number and current manufacturer data.
Can SITOP DC UPS be quoted from a model name only?
A model name identifies a family, not always the exact hardware. Honghao checks the complete article number, electrical data, options, accessories, lifecycle status, quantity and destination before confirming the offer.
Good fit
Use it when
- PLCs and industrial PCs
- Network and remote-access equipment
- Critical instrumentation
- Machines with data-retention needs
Selection limits
Check before specifying
- A UPS cannot be sized without a critical-load schedule and bridge time
- Battery shipping and service life require destination planning
- Exact ratings, functions, approvals and lifecycle status depend on the complete Siemens article number and firmware. Honghao confirms these against the requested BOM before quotation.
Strengths
Why this family
- Prevents uncontrolled control-system shutdown
- Scalable ride-through
- Diagnostic integration
- Supports controlled shutdown strategies
Typical BOM
Accessories
- Battery module
- Capacitor storage
- Selectivity module
- USB/Ethernet communication accessories
- Temperature sensor where required
Application data
What to send
- Critical 24 V load
- Required bridge time
- Controlled shutdown sequence
- Ambient temperature
- Battery shipping and maintenance responsibility
Technical basis
Manufacturer data remains the final reference.
Honghao uses family-level guidance to structure the enquiry. Final ratings, options, certificates and lifecycle status are checked against the exact article number and current manufacturer documentation.
Typical applications
Where it is used
RFQ checklist
Get a usable quotation
Send the full article number if it is a replacement. For a new application, send the project data listed above, quantity, destination country and required delivery date.
Send BOM or application dataExact configuration