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- Part number
- 6EP1935-6MD31
- Model no
- Battery module
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Once production ends, supply depends on remaining stock.
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- CE
- EAC
Siemens 6EP1935-6MD31 SITOP Pure Battery Module 24V/2.5Ah Buffer Module
SITOP pure lead-acid battery module, 24V/2.5Ah, -40 to 60C, for SITOP DC UPS 6A/15A.
Description
About the Battery module
About the Battery module
The Siemens 6EP1935-6MD31 is a SITOP pure lead-acid battery module rated 24 V DC / 2.5 Ah, sized for the SITOP DC UPS 6 A and 15 A modules. Unlike the standard lead-acid modules in the family, its pure-lead cells tolerate -40...+60 degC and supply up to 15 A in buffering mode and 15 A peak.
Certifications & Standards
- CE
- cURus
- EAC
- ABS
- DNV
- EPD
Selection Notes
Pick this pure-lead 2.5 Ah module over the standard 3.2 Ah lead-acid module when ambient temperature swings beyond the -15...+50 degC range that standard lead-acid cells tolerate, since pure lead extends operation down to -40 degC and up to +60 degC. Its 5 A maximum charging current is also higher than the standard modules', which shortens recharge time after a discharge event. The typical service life reaches 10 years at 20 degC versus 4 years for the standard lead-acid modules, though it still falls to about 1 year at 60 degC, so replacement planning should follow the actual site temperature.
Specification
Full specification
General information 5
| product brand name | SITOP |
|---|---|
| product type designation | Battery module |
| product designation | Battery module 2.5 Ah |
| type of battery | maintenance-free pure lead batteries |
| product version | Extension module/battery module |
Electrical data 7
| end-of-charge voltage at DC: at -10 °C recommended | 29 V |
|---|---|
| end-of-charge voltage at DC: at 0 °C recommended | 28.6 V |
| end-of-charge voltage at DC: at 20 °C recommended | 27.9 V |
| end-of-charge voltage at DC: at 30 °C recommended | 27.5 V |
| end-of-charge voltage at DC: at 40 °C recommended | 27.2 V |
| end-of-charge voltage at DC: at 50 °C recommended | 26.8 V |
| end-of-charge voltage at DC: at 60 °C recommended | 26.4 V |
Output 5
| battery capacity | 2.5 A·h |
|---|---|
| output current in buffering mode maximum | 15 A |
| peak current | 15 A |
| charging current maximum | 5 A |
| output voltage at DC rated value | 24 V |
Show all 76 specifications ↓ Show less ↑59 more values in Identification, Interfaces, Protection and monitoring, Safety, Standards, specifications, approvals, Standards, specifications, approvals hazardous environments, Standards, specifications, approvals marine classification, Standards, specifications, approvals Environmental Product Declaration, Ambient conditions, Service life, Connection method, Mechanical data, Accessories, Additional information, Version Classification, Logistics.
Identification 10
| Part number | 6EP1935-6MD31 |
|---|---|
| Type designation | Battery module |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Phase-out announced by the manufacturer |
| EAN | 4025515150510 |
| ETIM class | EC000357 |
| eCl@ss | 27050403 |
Interfaces 1
| communication function | No |
|---|
Protection and monitoring 2
| design of short-circuit protection | Battery fuse 15 A/32 V (solid-state circuitry blade-type fuse + support) |
|---|---|
| design of the overload protection | Valve control |
Safety 2
| operating resource protection class | Class III |
|---|---|
| protection class IP | IP00 |
Standards, specifications, approvals 3
| certificate of suitability: CE marking | Yes |
|---|---|
| certificate of suitability: UL approval | Yes; cURus-Recognized (UL 1778, CSA C22.2 No. 107.1), File E219627 |
| certificate of suitability: EAC approval | Yes |
Standards, specifications, approvals hazardous environments 1
| certificate of suitability: ATEX | No |
|---|
Standards, specifications, approvals marine classification 3
| shipbuilding approval | Yes |
|---|---|
| Marine classification association: American Bureau of Shipping Europe Ltd. (ABS) | Yes |
| Marine classification association: Det Norske Veritas (DNV) | Yes |
Standards, specifications, approvals Environmental Product Declaration 5
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 13.182 kg |
| global warming potential [CO2 eq]: during manufacturing | 9.579 kg |
| global warming potential [CO2 eq]: during operation | 2.021 kg |
| global warming potential [CO2 eq]: after end of life | 0.376 kg |
Ambient conditions 5
| ambient condition | For storage, mounting and operation of lead-acid batteries, the relevant DIN/VDE regulations or country-specific regulations (e.g. VDE 0510 Part 2/EN 50272-2) must be observed. You must ensure that the battery site is sufficiently ventilated. Possible sources of ignition must be at least 50 cm away. |
|---|---|
| ambient temperature: during operation | -40 ... +60 °C |
| ambient temperature: during transport | -40 ... +60 °C |
| ambient temperature: during storage | -40 ... +60 °C |
| relative temporary capacity loss at 20 °C in a month typical | 3% |
Service life 7
| service life of energy storage: typical | capacity falls to 80 % of original capacity (according to EUROBAT) |
|---|---|
| service life of energy storage: at 20 °C typical | 10 a |
| service life of energy storage: at 30 °C typical | 7 a |
| service life of energy storage: at 40 °C typical | 3 a |
| service life of energy storage: at 50 °C typical | 1.5 a |
| service life of energy storage: at 60 °C typical | 1 a |
| note | Along with the storage and operating temperature, other factors such as the duration of the storage period and the charge status during storage have a decisive influence on the possible useful life. Batteries should therefore be stored as briefly as possible, always fully charged, and within the temperature range 0 to +20 °C. |
Connection method 2
| type of electrical connection | spring-loaded terminals |
|---|---|
| for UPS module | 1 screw terminal each for 0.08 ... 2.5 mm2 for + BAT and - BAT |
Mechanical data 7
| width × height × depth of the enclosure | 265 × 151 × 91 mm |
|---|---|
| installation width × mounting height | 285 mm × 171 mm |
| fastening method | snaps onto DIN rail EN 60715 35x15 or keyhole mounting for hooking in to M4 screws |
| DIN-rail mounting | Yes |
| S7 rail mounting | No |
| wall mounting | Yes |
| number of cells | 12 |
Accessories 1
| product component included | Accessories pack with solid-state circuitry fuse 15 A |
|---|
Additional information 1
| other information | Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) |
|---|
Version Classification 3
| eClass | 16 27-05-04-03 |
|---|---|
| ETIM | 10 EC000357 |
| UNSPSC | 15 26-11-17-01 |
Logistics 6
| Net weight | 3.8 kg |
|---|---|
| Country of origin | Austria |
| Shipping weight | 4.3 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
Documents for 6EP1935-6MD31
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Certifications
Certifications and standards
- CE
- EAC
- CE marking
- EAC approval
- shipbuilding approval
- American Bureau of Shipping Europe Ltd. (ABS)
- Det Norske Veritas (DNV)
- Environmental Product Declaration
Quick answers
Questions about the Battery module
What is the rated current of Battery module?
The rated current of Battery module is 15 A.
What is the HS code of Battery module for customs?
The tariff (HS) code on file for Battery module is 85072080.
What is the EAN of Battery module?
The EAN (GTIN) of Battery module is 4025515150510.
Where does Battery module ship from, and how fast?
Battery module ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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Series
Siemens SITOP pure
- Brand
- Siemens
- Series
- SITOP pure
