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- Part number
- 6EP3437-8UB00-0AY0
- Model no
- PSU3800
- CE
SITOP PSU3800Siemens 6EP3437-8UB00-0AY0 SITOP PSU3800 3AC 24V/30-40A DIN Rail Power Supply
SITOP PSU3800 three-phase power supply, 400-500V AC input, 24V DC/30-40A output, IP20, suitable for battery charging.
Description
About the PSU3800
About the PSU3800
The Siemens 6EP3437-8UB00-0AY0 is a SITOP PSU3800 three-phase power supply rated for battery charging duty, taking 400-500 V AC input and delivering a stabilized 24 V DC output rated 30-40 A (960 W), with minimal switch-on overshoot, 94% efficiency, and a relay contact for the 24 V OK status signal.
Certifications & Standards
- CE
- cULus
- UKCA
- EAC
- RCM
- SEMI F47
- CB
- Shipbuilding Approval
- DNV
- EPD
Selection Notes
The 6EP3437-8UB00-0AY0 is the 24 V/30-40 A member of the PSU3800 charging family, sized for 24 V battery banks where the 12 V/20 A model in the same series would be undersized. The constant-current fallback under short circuit (approx. 44 A) and minimal switch-on overshoot (under 3%) are the traits that make this a charging-rated supply rather than a general-purpose 24 V rail; a standard PSU8600 or PSU8200 unit is not rated for repeated deep-discharge recharge cycles the way this PSU3800 model is. Pick the 12 V/20 A PSU3800 sibling instead for 12 V battery systems; the buffer module accessory listed for this device can be added to bridge short mains interruptions independently of the battery under charge.
Specification
Full specification
General information 4
| product brand name | SITOP |
|---|---|
| product type designation | PSU3800 |
| product designation | Power supply SITOP modular |
| type of current supply | 24 V/30 - 40 A |
Input 18
| 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 | 10 ms |
| operating condition of the mains buffering | at Vin = 400 V |
| input current: at rated input voltage 400 V | 2.1 A |
| input current: at rated input voltage 500 V | 1.7 A |
| current limitation of inrush current at 25 °C maximum | 13 A |
| I2t value maximum | 2.24 A2·s |
| fuse protection type in the feeder | Required: 3-pole connected miniature circuit breaker 10 ... 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 | 24 V |
| output voltage: at output 1 at DC rated value | 24 V |
| output voltage: at output 1 at DC | 24 V |
| output voltage adjustable | Yes; via potentiometer |
| adjustable output voltage | 24 ... 28 V; max. 960 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 | 240 mV |
| display version for normal operation | Green LED for 24 V OK |
| type of signal at output | Relay contact (NO contact, rating 60 V DC/ 0.3 A) for "24 V OK" |
| behavior of the output voltage when switching on | minimal overshoot (< 3 %) |
| response delay maximum | 0.1 s |
| voltage increase time of the output voltage: maximum | 100 ms |
| output current: rated value | 40 A |
| output current: rated range | 0 ... 40 A; +60 ... +70 °C: Derating 4%/K |
| supplied active power typical | 960 W |
| constant overload current: on short-circuiting during the start-up typical | 48 A |
| bridging of equipment | Yes; switchable characteristic |
| number of parallel-switched equipment resources for increasing the power | 2 |
Show all 129 specifications ↓ Show less ↑84 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, Additional information, Approvals Certificates, Logistics.
Identification 10
| Part number | 6EP3437-8UB00-0AY0 |
|---|---|
| Type designation | PSU3800 |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515154976 |
| ETIM class | EC002540 |
| eCl@ss | 27040701 |
Efficiency 3
| efficiency in percent | 94 % |
|---|---|
| power loss [W]: at rated output voltage for rated value of the output current typical | 66 W |
| power loss [W]: during no-load operation maximum | 4 W |
Closed-loop control 3
| relative control precision of the output voltage with rapid fluctuation of the input voltage by +/- 15% typical | 1% |
|---|---|
| relative control precision of the output voltage load step of resistive load 50/100/50 % typical | 3% |
| setting time: maximum | 10 ms |
Protection and monitoring 6
| design of the overvoltage protection | < 31.8 V |
|---|---|
| property of the output short-circuit proof | Yes |
| design of short-circuit protection | Constant current characteristic approx. 44 A |
| typical | 44 A |
| enduring short circuit current RMS value: typical | 50 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 | 1 mA |
| leakage current: typical | 0.6 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 9
| 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 |
| MTBF at 40 °C | 517 015 h |
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) | No |
| 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 | 1 751.8 kg |
| global warming potential [CO2 eq]: during manufacturing | 78.9 kg |
| global warming potential [CO2 eq]: during operation | 1 671.3 kg |
| global warming potential [CO2 eq]: after end of life | 0.66 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 0.5 ... 4 mm2 single-core/finely stranded |
| at output | +: 2 screw terminals each for 0.5 ... 16 mm2; -: 3 screw terminals each for 0.5 ... 16 mm2 |
| for auxiliary contacts | 13, 14 (alarm signal), 15, 16 (Remote): 1 screw terminal each for 0.05 ... 2.5 mm2 |
Mechanical data 11
| width × height × depth of the enclosure | 135 × 145 × 150 mm |
|---|---|
| installation width × mounting height | 135 mm × 225 mm |
| required spacing: top | 40 mm |
| required spacing: bottom | 40 mm |
| required spacing: left | 0 mm |
| required spacing: right | 0 mm |
| fastening method | Snaps onto DIN rail EN 60715 35x15 |
| 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, TI-grey 3RT2900-1SB20 |
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 | 78.9 kg |
|---|
Logistics 7
| Net weight | 3.3 kg |
|---|---|
| Package dimensions | 220 × 225 × 185 mm |
| Country of origin | Romania |
| Shipping weight | 3.8 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
- 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 30 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 0.96 kW.
What is the HS code of PSU3800 for customs?
The tariff (HS) code on file for PSU3800 is 85044083.
What is the EAN of PSU3800?
The EAN (GTIN) of PSU3800 is 4025515154976.
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
