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- Part number
- 6EP1961-3BA01
- Model no
- PSE201U
In stock · 33
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· From Türkiye
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Siemens 6EP1961-3BA01 SITOP PSE201U 24V DC 40A Power Supply Buffer Module
SITOP PSE201U buffer module, 24V DC, 40A, 200ms-1.6s bridging time, IP20.
Description
About the PSE201U
About the PSE201U
The Siemens SITOP PSE201U (6EP1961-3BA01) is a 24 V DC buffer module rated for up to 40 A output that bridges short power interruptions from 100 ms to 10 s depending on load current. At full 40 A load it holds the bus for 200 ms; at 5 A it extends to 1.6 s.
Certifications & Standards
- CE
- EAC
- SEMI F47
- CB
- shipbuilding
- ABS
- DNV
- EPD
Selection Notes
Buffer time scales inversely with load - 200 ms at the full 40 A rating versus 1.6 s at 5 A - so the actual ride-through this module provides depends on how much of its capacity the downstream load draws; size the connected load with that curve in mind rather than assuming a fixed bridging time. It has no communication interface, which keeps it simple for straight DC-bus bridging but means status is read only from the front LED, not over a fieldbus.
Applications
Placed downstream of a SITOP power supply to ride through brief mains dips or contactor-induced sags on a 24 V DC control bus, protecting PLCs and relay logic from momentary power loss.
Specification
Full specification
General information 3
| product brand name | SITOP |
|---|---|
| product type designation | PSE201U |
| type of current supply | Buffer module |
Input 3
| voltage curve at input | DC |
|---|---|
| supply voltage at DC rated value | 24 V |
| input voltage at DC | 24 ... 28.8 V |
Memory 2
| design of the mains power cut bridging-connection | Backup time: with 40 A load current: 200 ms; with 20 A load current: 400 ms; with 10 A load current: 800 ms; with 5 A load current: 1.6 s. Reduces the backup time by 100 ms in combination with 6EP1 437-3BA10. Maximum backup time 100 ms in combination with 6EP1 336-2BA10 (load current 20 A). |
|---|---|
| buffering time in the event of power failure | 0.16 min |
Show all 73 specifications ↓ Show less ↑65 more values in Identification, Output, Protection and monitoring, Interfaces, Safety, Standards, specifications, approvals, Standards, specifications, approvals hazardous environments, Standards, specifications, approvals marine classification, Standards, specifications, approvals Environmental Product Declaration, Ambient conditions, Connection method, Mechanical data, Additional information, Version Classification, Logistics.
Identification 10
| Part number | 6EP1961-3BA01 |
|---|---|
| Type designation | PSE201U |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515152576 |
| ETIM class | EC000382 |
| eCl@ss | 27040705 |
Output 2
| formula for output voltage | Vin - approx. 1 V |
|---|---|
| output current: rated value | 40 A |
Protection and monitoring 1
| display version: for normal operation | Green LED for "supply voltage > 20.5 V" |
|---|
Interfaces 3
| product component PC interface | No |
|---|---|
| product function communication function | No |
| design of the interface | without |
Safety 5
| galvanic isolation between input and output | Yes |
|---|---|
| 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 6
| 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 |
| certificate of suitability: SEMI F47 | Yes |
| type of certification CB-certificate | Yes |
| MTBF at 40 °C | 2 538 071 h |
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 | 64.9 kg |
| global warming potential [CO2 eq]: during manufacturing | 20.8 kg |
| global warming potential [CO2 eq]: during operation | 43.2 kg |
| global warming potential [CO2 eq]: after end of life | 0.39 kg |
Ambient conditions 4
| ambient temperature: during operation | -25 ... +70 °C; with natural convection |
|---|---|
| ambient temperature: during transport | -40 ... +85 °C |
| ambient temperature: during storage | -40 ... +85 °C |
| environmental category according to IEC 60721 | Climate class 3K3, 5 ... 95% no condensation |
Connection method 3
| type of electrical connection | screw terminal |
|---|---|
| at input | +: 1 screw terminal for 0.5 ... 10 mm2 |
| at output | -: 1 screw terminal for 0.5 ... 10 mm2 |
Mechanical data 11
| width × height × depth of the enclosure | 70 × 125 × 121 mm |
|---|---|
| installation width × mounting height | 70 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 |
Additional information 1
| other information | Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) |
|---|
Version Classification 4
| eClass | 16 27-04-07-05 |
|---|---|
| ETIM | 10 EC000382 |
| IDEA | 4 4149 |
| UNSPSC | 15 39-12-10-11 |
Logistics 6
| Net weight | 1.2 kg |
|---|---|
| Country of origin | Romania |
| Shipping weight | 1.7 kg |
| Ships from | Türkiye |
| Dispatch | 13 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
Documents for 6EP1961-3BA01
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Ask us for the datasheet
Certifications
Certifications and standards
- CE marking
- EAC approval
- SEMI F47
- type of certification CB-certificate
- shipbuilding approval
- American Bureau of Shipping Europe Ltd. (ABS)
- Det Norske Veritas (DNV)
- Environmental Product Declaration
Quick answers
Questions about the PSE201U
What is the rated current of PSE201U?
The rated current of PSE201U is 40 A.
Which supply voltage is PSE201U rated for?
The rated operational voltage of PSE201U is 24 V AC.
What is the HS code of PSE201U for customs?
The tariff (HS) code on file for PSE201U is 85049090.
What is the EAN of PSE201U?
The EAN (GTIN) of PSE201U is 4025515152576.
Where does PSE201U ship from, and how fast?
PSE201U ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
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Series
Siemens SITOP PSE201U
- Brand
- Siemens
- Series
- SITOP PSE201U
