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- Part number
- 6EP3424-8UB00-0AY0
- Model no
- PSU3800
- CE
SITOP PSU3800Siemens 6EP3424-8UB00-0AY0 SITOP PSU3800 3AC 12V/20A DIN Rail Power Supply
SITOP PSU3800 three-phase power supply, 400-500V AC input, 12V DC/20A output, IP20, optimized for battery charging.
Description
About the PSU3800
About the PSU3800
The Siemens 6EP3424-8UB00-0AY0 is a SITOP PSU3800 three-phase power supply built specifically for battery charging applications, taking 400-500 V AC input and delivering a stabilized 12 V DC output rated at 20 A (240 W), with soft-start switch-on behavior, 91% efficiency, and a relay contact for 12 V OK status signaling.
Certifications & Standards
- CE
- cULus
- UKCA
- EAC
- RCM
- SEMI F47
- CB
- Shipbuilding Approval
- ABS
- DNV
- EPD
Selection Notes
The 6EP3424-8UB00-0AY0 is the 12 V/20 A member of the PSU3800 family, positioned for lead-acid battery charging circuits where 12 V nominal battery voltage is standard. The soft-start behavior (no output overshoot on power-up) and the constant-current fallback under short circuit are specifically suited to charging duty rather than continuous resistive loads. Choose the 24 V PSU3800 variants instead when the battery bank or DC bus is a 24 V system; this 12 V/20 A model tops out at 240 W, so higher-power charging tasks call for the 24 V/30-40 A model in the same family. The buffer module accessory listed for this device can bridge brief mains dropouts without relying on the battery being charged.
Specification
Full specification
General information 4
| product brand name | SITOP |
|---|---|
| product type designation | PSU3800 |
| product designation | Power supply SITOP modular |
| type of current supply | 12 V/20 A |
Input 19
| type of the power supply network | 3-phase AC |
|---|---|
| phase number | 3 |
| voltage curve at input | AC |
| supply voltage at AC: minimum rated value | 400 V |
| supply voltage at AC: maximum rated value | 500 V |
| supply voltage at AC: initial value | 320 V |
| supply voltage at AC: full-scale value | 575 V |
| supply voltage: at 50 Hz | 400 V |
| supply voltage: at 60 Hz | 500 V |
| line frequency | 50/60 Hz |
| wide range input | Yes |
| buffering time for rated value of the output current in the event of power failure minimum | 15 ms |
| operating condition of the mains buffering | at Vin = 400 V |
| input current: at rated input voltage 400 V | 0.7 A |
| input current: at rated input voltage 500 V | 0.6 A |
| current limitation of inrush current at 25 °C maximum | 16 A |
| I2t value maximum | 0.8 A2·s |
| fuse protection type | none |
| fuse protection type in the feeder | Required: 3-pole connected miniature circuit breaker 6 ... 16 A characteristic C or circuit breaker 3RV2011-1DA10 (setting 3 A) or 3RV2711-1DD10 (UL 489) |
Output 23
| voltage curve at output | Controlled, isolated DC voltage |
|---|---|
| product function output voltage controlled | Yes |
| product function output voltage stabilized | Yes |
| output voltage at DC rated value | 12 V |
| output voltage: at output 1 at DC rated value | 12 V |
| output voltage: at output 1 at DC | 12 V |
| output voltage adjustable | Yes; via potentiometer |
| adjustable output voltage | 12 ... 14 V; max. 240 W |
| relative overall tolerance of the voltage | 3% |
| relative control precision of the output voltage: on slow fluctuation of input voltage | 0.1 % |
| residual ripple: maximum | 100 mV |
| voltage peak: maximum | 200 mV |
| display version for normal operation | Green LED for 12 V OK |
| type of signal at output | Relay contact (NO contact, rating 60 V DC/ 0.3 A) for 12 V OK |
| behavior of the output voltage when switching on | No overshoot of Vout (soft start) |
| response delay maximum | 2.5 s |
| voltage increase time of the output voltage: maximum | 500 ms |
| output current: rated value | 20 A |
| output current: rated range | 0 ... 20 A; +60 ... +70 °C: Derating 2%/K |
| supplied active power typical | 240 W |
| constant overload current: on short-circuiting during the start-up typical | 22 A |
| bridging of equipment | Yes; switchable characteristic |
| number of parallel-switched equipment resources for increasing the power | 2 |
Show all 134 specifications ↓ Show less ↑88 more values in Identification, Efficiency, Closed-loop control, Protection and monitoring, Safety, EMC, 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, Accessories, Further information internet links, Additional information, Approvals Certificates, Logistics.
Identification 10
| Part number | 6EP3424-8UB00-0AY0 |
|---|---|
| Type designation | PSU3800 |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515154648 |
| ETIM class | EC002540 |
| eCl@ss | 27040701 |
Efficiency 2
| efficiency in percent | 91 % |
|---|---|
| power loss [W]: at rated output voltage for rated value of the output current typical | 24 W |
Closed-loop control 8
| relative control precision of the output voltage with rapid fluctuation of the input voltage by +/- 15% typical | 0.1 % |
|---|---|
| relative control precision of the output voltage load step of resistive load 50/100/50 % typical | 1% |
| setting time: load step 50 to 100% typical | 0.2 ms |
| setting time: load step 100 to 50% typical | 0.2 ms |
| relative control precision of the output voltage at load step of resistive load 10/90/10 % typical | 2% |
| setting time: load step 10 to 90% typical | 0.2 ms |
| setting time: load step 90 to 10% typical | 0.2 ms |
| setting time: maximum | 10 ms |
Protection and monitoring 6
| design of the overvoltage protection | < 18 V |
|---|---|
| property of the output short-circuit proof | Yes |
| design of short-circuit protection | Alternatively, constant current characteristic approx. 22 A or latching shutdown |
| typical | 22 A |
| enduring short circuit current RMS value: typical | 22 A |
| display version for overload and short circuit | LED yellow for "overload", LED red for "latching shutdown" |
Safety 6
| electrical separation between input and output | Yes |
|---|---|
| galvanic isolation | Output voltage: SELV, ES1 (IEC 62368-1), DVC As (IEC 61204-7) |
| operating resource protection class | Class I |
| leakage current: maximum | 3.5 mA |
| leakage current: typical | 0.9 mA |
| protection class IP | IP20 |
EMC 3
| standard: for emitted interference | EN 55022 Class B |
|---|---|
| standard: for mains harmonics limitation | EN 61000-3-2 |
| standard: for interference immunity | EN 61000-6-2 |
Standards, specifications, approvals 8
| 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: UKCA marking | Yes |
| certificate of suitability: EAC approval | Yes |
| certificate of suitability: Regulatory Compliance Mark (RCM) | Yes |
| certificate of suitability: NEC Class 2 | No |
| certificate of suitability: SEMI F47 | Yes |
| type of certification: CB-certificate | Yes |
Standards, specifications, approvals hazardous environments 4
| certificate of suitability: IECEx | No |
|---|---|
| certificate of suitability: ATEX | No |
| certificate of suitability: ULhazloc approval | No |
| certificate of suitability: FM registration | No |
Standards, specifications, approvals marine classification 5
| shipbuilding approval | Yes |
|---|---|
| Marine classification association: American Bureau of Shipping Europe Ltd. (ABS) | Yes |
| Marine classification association: French marine classification society (BV) | No |
| Marine classification association: Det Norske Veritas (DNV) | Yes |
| Marine classification association: Lloyds Register of Shipping (LRS) | No |
Standards, specifications, approvals Environmental Product Declaration 5
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 636.9 kg |
| global warming potential [CO2 eq]: during manufacturing | 28.7 kg |
| global warming potential [CO2 eq]: during operation | 607.6 kg |
| global warming potential [CO2 eq]: after end of life | 0.24 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 4
| type of electrical connection | screw terminal |
|---|---|
| at input | L1, L2, L3, PE: 1 screw terminal each for 0.2 ... 4 mm2 single-core/finely stranded |
| at output | +, -: 2 screw terminals each for 0.2 ... 4 mm2 |
| for auxiliary contacts | 13, 14 (alarm signal): 1 screw terminal each for 0.14 ... 1.5 mm2; 15, 16 (Remote): 1 screw terminal each for 0.14 ... 1.5 mm2 |
Mechanical data 11
| width × height × depth of the enclosure | 70 × 125 × 125 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 |
Accessories 2
| electrical accessories | Buffer module |
|---|---|
| mechanical accessories | Device identification label 20 mm × 7 mm, pale turquoise 3RT1900-1SB20 |
Further information internet links 1
| identification link | Yes; acc. to IEC 61406-1:2022 |
|---|
Additional information 1
| other information | Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) |
|---|
Approvals Certificates 1
| Environmental Product Declaration: global warming potential [CO2 eq] / during manufacturing | 28.7 kg |
|---|
Logistics 7
| Net weight | 1 kg |
|---|---|
| Package dimensions | 133 × 130 × 74 mm |
| Country of origin | Romania |
| Shipping weight | 1.5 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
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Certifications
Certifications and standards
- CE
- CE marking
- UKCA marking
- EAC approval
- Regulatory Compliance Mark (RCM)
- SEMI F47
- CB-certificate
- shipbuilding approval
- American Bureau of Shipping Europe Ltd. (ABS)
- Det Norske Veritas (DNV)
- Environmental Product Declaration
Quick answers
Questions about the PSU3800
What is the rated current of PSU3800?
The rated current of PSU3800 is 20 A.
Which supply voltage is PSU3800 rated for?
The rated operational voltage of PSU3800 is 400–500 V AC.
What motor power is PSU3800 rated for?
The rated motor power of PSU3800 is 0.24 kW.
What is the HS code of PSU3800 for customs?
The tariff (HS) code on file for PSU3800 is 85044060.
What is the EAN of PSU3800?
The EAN (GTIN) of PSU3800 is 4025515154648.
Where does PSU3800 ship from, and how fast?
PSU3800 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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Series
Siemens SITOP PSU3800
- Brand
- Siemens
- Series
- SITOP PSU3800
