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.
The Siemens 6EP3447-8SB00-0AY0 is a SITOP PSU8200 stabilized power supply, part of the SITOP modular family, converting 3-phase 400-500 V AC into a controlled, isolated 48 V DC output rated at 20 A. It supplies 960 W at 94% efficiency and has a wide-range input tolerant of mains fluctuations from 320 to 575 V.
The 520782-hour MTBF at 40 degrees C positions this unit for continuous-duty cabinets where unplanned downtime is costly. Screw terminals instead of push-in connectors suit installers standardizing on ring-lug or ferrule termination across a panel. Output voltage trims from 46 to 56 V via the front potentiometer, useful when compensating for cable drop to a distant 48 V load, and the relay-based 48 V OK contact (60 V DC/0.3 A) can drive a PLC input directly for supervisory wiring.
| product brand name | SITOP |
|---|---|
| product type designation | PSU8200 |
| product designation | Power supply SITOP modular |
| type of current supply | 48 V/20 A |
| 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 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) |
| 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 | 48 V |
| output voltage: at output 1 at DC rated value | 48 V |
| output voltage: at output 1 at DC | 48 V |
| output voltage adjustable | Yes; via potentiometer |
| adjustable output voltage | 46 ... 56 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 | 480 mV |
| display version for normal operation | Green LED for 48 V OK |
| type of signal at output | Relay contact (NO contact, rating 60 V DC/ 0.3 A) for 48 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 | 20 A |
| output current: rated range | 0 ... 20 A; +60 ... +70 °C: Derating 4%/K |
| supplied active power typical | 960 W |
| short-term overload current: at short-circuit during operation typical | 60 A |
| duration of overloading capability for excess current: at short-circuit during operation | 25 ms |
| constant overload current: on short-circuiting during the start-up typical | 24 A |
| bridging of equipment | Yes; switchable characteristic |
| number of parallel-switched equipment resources for increasing the power | 2 |
| Part number | 6EP3447-8SB00-0AY0 |
|---|---|
| Type designation | PSU8200 |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515154945 |
| ETIM class | EC002540 |
| eCl@ss | 27040701 |
| efficiency in percent | 94 % |
|---|---|
| power loss [W]: at rated output voltage for rated value of the output current typical | 58 W |
| power loss [W]: during no-load operation maximum | 4 W |
| 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 |
| design of the overvoltage protection | < 57.8 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 |
| overcurrent overload capability: in normal operation | overload capability 150 % Iout rated up to 5 s/min |
| enduring short circuit current RMS value: typical | 26 A |
| display version for overload and short circuit | LED yellow for "overload", LED red for "latching shutdown" |
| 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 |
| 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 |
| 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: 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 | 520 782 h |
| certificate of suitability: IECEx | No |
|---|---|
| certificate of suitability: ATEX | No |
| certificate of suitability: ULhazloc approval | No |
| certificate of suitability: FM registration | No |
| 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 |
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 1 545.6 kg |
| global warming potential [CO2 eq]: during manufacturing | 75.3 kg |
| global warming potential [CO2 eq]: during operation | 1 468.7 kg |
| global warming potential [CO2 eq]: after end of life | 0.63 kg |
| 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 |
| 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 |
| 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 |
| mechanical accessories | Device identification label 20 mm × 7 mm, TI-grey 3RT2900-1SB20 |
|---|
| other information | Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) |
|---|
| Environmental Product Declaration: global warming potential [CO2 eq] / during manufacturing | 75.3 kg |
|---|
| Net weight | 3.15 kg |
|---|---|
| Package dimensions | 220 × 225 × 185 mm |
| Country of origin | Romania |
| Shipping weight | 3.65 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 01 Nov 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of PSU8200 is 20 A.
The rated operational voltage of PSU8200 is 400–500 V AC.
The rated motor power of PSU8200 is 0.96 kW.
The tariff (HS) code on file for PSU8200 is 85044083.
The EAN (GTIN) of PSU8200 is 4025515154945.
PSU8200 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
Master PLC system components: CPU, power supply, I/O modules, communication interfaces, and software with sizing formulas and selection tips. Shop at Stoklink.