Main Components of a PLC System: Complete Guide for Engineers
Master PLC system components: CPU, power supply, I/O modules, communication interfaces, and software with sizing formulas and selection tips. Shop at Stoklink.
- Part number
- 6EP1933-2EC51
- Model no
- UPS500S
Low stock
Dispatch
Planned dispatch date. We aim to ship within 1 business day. Depending on warehouse workload it can take 2–3 business days.
· From Türkiye
0
- CE
- EAC
Siemens 6EP1933-2EC51 SITOP UPS500S 24V/15A 5kWs USB DC UPS Module
SITOP UPS500S capacitor UPS, 24V DC / 15A output, 5kWs storage, USB interface, IP20.
Description
About the UPS500S
About the UPS500S
The Siemens 6EP1933-2EC51 is a SITOP UPS500S basic unit, a maintenance-free capacitor-based DC UPS rated 24 V DC / 15 A output with a 5 kWs energy store, drawing 15.2 A at the 24 V DC input. It bridges 15 A for 9 s (or 5 A for 31 s) without a battery and adds a USB interface for status and configuration.
Certifications & Standards
- CE
- cULus
- EAC
- ABS
- DNV
- EPD
Selection Notes
This is the basic UPS500S unit with a 5 kWs capacitor store, USB interface, and 15 A rated output, aimed at bridges measured in seconds rather than minutes: 15 A for 9 s or 5 A for 31 s. Because it uses capacitors, not a lead-acid battery module, there is no periodic battery replacement and the 97.5% efficiency exceeds the battery-based SITOP DC UPS modules. Add the SITOP UPS501S extension module when the application needs a longer buffering time than the basic unit alone provides.
Applications
Bridges brief 24 V DC dropouts for PLCs, drives, and remote I/O during supply switchover or short interruptions, where a maintenance-free capacitor store is preferred over a lead-acid battery.
Specification
Full specification
General information 3
| product brand name | SITOP |
|---|---|
| product type designation | UPS500S |
| type of current supply | Basic unit 5 kWs |
Input 6
| voltage curve at input | DC |
|---|---|
| supply voltage at DC rated value | 24 V |
| input voltage at DC | 22 ... 29 V |
| adjustable response value voltage for buffer connection preset | 22.5 V |
| adjustable response value voltage for buffer connection | 22 ... 25.5 V; Adjustable in 0.5 V increments |
| input current at rated input voltage 24 V rated value | 15.2 A; + approx. 2.3 A with empty energy storage (capacitor) |
Memory 5
| type of energy storage | with capacitors |
|---|---|
| product function DC-UPS modularly expandable | Yes |
| design of the mains power cut bridging-connection | 15 A for 9 s or 10 A for 15 s or 5 A for 31 s or 2 A for 76 s; longer buffering times with expansion modules |
| buffering time in the event of power failure | 0.15 min |
| energy content of energy storage | 5 kW.s |
Show all 90 specifications ↓ Show less ↑76 more values in Identification, Output, Efficiency, Protection and monitoring, Interfaces, Safety, Standards, specifications, approvals, Standards, specifications, approvals marine classification, Standards, specifications, approvals Environmental Product Declaration, Ambient conditions, Connection method, Mechanical data, Accessories, Additional information, Logistics.
Identification 10
| Part number | 6EP1933-2EC51 |
|---|---|
| Type designation | UPS500S |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515152491 |
| ETIM class | EC000382 |
| eCl@ss | 27040705 |
Output 12
| output voltage: in normal operation at DC rated value | 24 V |
|---|---|
| output voltage: in buffering mode at DC rated value | 24 V |
| formula for output voltage | 24 V ± 3 % |
| startup delay time typical | 0.6 s |
| voltage increase time of the output voltage typical | 25 ms |
| output voltage in buffering mode at DC | 24 ... 24.7 V |
| output current: rated value | 15 A |
| output current: in normal operation | 0 ... 15 A |
| output current: in buffering mode | 0 ... 15 A |
| peak current | 25 A |
| property of the output short-circuit proof | Yes |
| charging current | 1 A, 2 A |
Efficiency 3
| efficiency in percent: at rated output voltage for rated value of the output current typical | 97.5 % |
|---|---|
| power loss [W]: at rated output voltage for rated value of the output current typical | 9 W |
| supplied active power typical | 360 W |
Protection and monitoring 4
| product function: reverse polarity protection against energy storage unit polarity reversal | Yes |
|---|---|
| product function: reverse polarity protection against input voltage polarity reversal | Yes |
| display version: for normal operation | Normal operation: LED green (OK), floating changeover contact "OK/Bat" to setting "OK" ("OK" means: Voltage of the supplying power supply unit is greater than cut-in threshold set at the DC UPS module); lack of buffer standby: LED red (ALARM), floating changeover contact "ALARM/BAT" to setting "ALARM"; energy storage > 85%: LED green (BAT > 85%), floating NO contact "BAT > 85" closed; permissible contact current capacity: DC 60 V/1 A or AC 30 V /1 A |
| display version: in buffering mode | Buffered mode: LED yellow (BAT), floating changeover contact "OK/BAT" to setting "BAT"; Prewarning buffer end after expiry of 80% of the available buffer time: LED red (ALARM), floating changeover contact "ALARM/BAT" to setting "ALARM"; Energy storage > 85%: LED green (BAT > 85%), floating NO contact "BAT > 85" closed |
Interfaces 3
| product component PC interface | Yes |
|---|---|
| product function communication function | No |
| design of the interface | USB |
Safety 5
| galvanic isolation between input and output | No |
|---|---|
| operating resource protection class | Class III |
| protection class IP | IP20 |
| standard: for emitted interference | EN 55022 Class B |
| standard: for interference immunity | EN 61000-6-2 |
Standards, specifications, approvals 4
| certificate of suitability: CE marking | Yes |
|---|---|
| certificate of suitability: UL approval | Yes; cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259 |
| certificate of suitability: EAC approval | Yes |
| MTBF at 40 °C | 459 137 h |
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 | 270.3 kg |
| global warming potential [CO2 eq]: during manufacturing | 41 kg |
| global warming potential [CO2 eq]: during operation | 228.2 kg |
| global warming potential [CO2 eq]: after end of life | 0.76 kg |
Ambient conditions 4
| ambient temperature: during operation | 0 ... 60 °C; with natural convection |
|---|---|
| ambient temperature: during transport | -40 ... +70 °C |
| ambient temperature: during storage | -40 ... +70 °C |
| environmental category according to IEC 60721 | Climate class 3K3, 5 ... 95% no condensation |
Connection method 4
| type of electrical connection | screw terminal |
|---|---|
| at input | 24 V DC: 2 screw terminals for 1 ... 4 mm2/17 ... 11 AWG |
| at output | 24 V DC: 4 screw terminals for 1 ... 4 mm2/17 ... 11 AWG |
| for control circuit and status message | 10 screw terminals for 0.5 ... 2.5 mm2/20 ... 13 AWG |
Mechanical data 11
| width × height × depth of the enclosure | 120 × 125 × 125 mm |
|---|---|
| installation width × mounting height | 120 mm × 225 mm |
| required spacing: top | 50 mm |
| required spacing: bottom | 50 mm |
| required spacing: left | 0 mm |
| required spacing: right | 0 mm |
| fastening method | Snaps onto DIN rail EN 60715 35x7.5/15 |
| DIN-rail mounting | Yes |
| S7 rail mounting | No |
| wall mounting | No |
| housing can be lined up | Yes |
Accessories 1
| electrical accessories | Extension module SITOP UPS501S |
|---|
Additional information 1
| other information | Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) |
|---|
Logistics 6
| Net weight | 1 kg |
|---|---|
| Country of origin | Romania |
| Shipping weight | 1.5 kg |
| Ships from | Türkiye |
| Dispatch | 13 Nov |
| Stock | Low stock |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
Documents for 6EP1933-2EC51
No documents are on file for this part yet.
Ask us for the datasheet
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 UPS500S
What is the rated current of UPS500S?
The rated current of UPS500S is 15 A.
Which supply voltage is UPS500S rated for?
The rated operational voltage of UPS500S is 24 V AC.
What motor power is UPS500S rated for?
The rated motor power of UPS500S is 97.5 % kW.
What is the HS code of UPS500S for customs?
The tariff (HS) code on file for UPS500S is 85044095.
What is the EAN of UPS500S?
The EAN (GTIN) of UPS500S is 4025515152491.
Where does UPS500S ship from, and how fast?
UPS500S ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Guides
Guides for power supplies
Reviews
Customer reviews
Series
Siemens SITOP UPS500S
- Brand
- Siemens
- Series
- SITOP UPS500S
