6EP1931-2FC21

SITOP DC UPS Module 24 V / 40 A

SITOP DC UPS Module 24 V / 40 A for buffering 24 v dc control loads with an external sitop battery module, supplied against the exact Siemens article number with installed-system compatibility checked before quotation.

BRANDSiemens

STOCK CONFIRMATIONIn Stock

CONDITIONBrand new and original

WARRANTY12 months

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Product overview

The Siemens 6EP1931-2FC21 is a SITOP DC UPS Module 24 V / 40 A used for buffering 24 v dc control loads with an external sitop battery module. Typical applications include plc and hmi ride-through power and control-system orderly shutdown.

Selection must follow the complete Siemens article number rather than appearance alone. Before ordering, confirm continuous load and required backup time, compatible 24 v battery module and condition, buffer threshold and charging-current settings, cabinet ventilation, terminals and protection.

COMMON APPLICATIONS

Installed-system context

PLC and HMI ride-through power
Control-system orderly shutdown
24 V DC critical cabinet loads

Tell us the controller, communication network and installed panel details. That context helps prevent a visually similar but incompatible replacement.

VERIFIED MODEL DATA

Technical specifications

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Manufacturer: Siemens
Article number / MPN: 6EP1931-2FC21
Product designation: SITOP DC UPS Module 24 V / 40 A
Input: 22–29 V DC; 24 V DC nominal
Input current: 40 A plus approx. 2.6 A with discharged battery
Output: 24 V DC / 40 A
Buffer threshold: 22–25.5 V, adjustable in 0.5 V steps
Energy storage: External 24 V battery module required
Interface: Version without PC interface
Mounting / protection: 35 mm DIN rail / IP20

Technical values are compiled from official Siemens product documentation for this exact article number. Always check the delivered unit nameplate and revision before installation.

What to send for verification

• Complete Siemens article number and nameplate
• continuous load and required backup time
• compatible 24 V battery module and condition
• buffer threshold and charging-current settings
• cabinet ventilation, terminals and protection
• Required quantity, destination and condition

What your quotation will state

• Exact quoted article number
• New, surplus or refurbished condition
• Available quantity and estimated lead time
• Warranty and proposed shipping method

SITOP DC UPS module — confirm battery sizing, backup duration, DIP settings, load and successor requirements.

BUYER QUESTIONS

Frequently asked questions

What is the Siemens 6EP1931-2FC21?

It is a SITOP DC UPS Module 24 V / 40 A used for buffering 24 v dc control loads with an external sitop battery module.

What should be checked before ordering?

Confirm the full article number, then verify continuous load and required backup time, compatible 24 v battery module and condition, buffer threshold and charging-current settings.

Can a visually similar Siemens module be used instead?

Do not select by appearance alone. Hardware revision, firmware, signal type, interface, connector, rack and project compatibility can differ even when the housings look similar.

What information is needed for a quotation?

Send the complete article number, quantity, destination, required condition and a clear nameplate photo. We will confirm the quoted revision and lead time in writing.

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