Main Components of a PLC System: Complete Guide for Engineers
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The Siemens SITOP PSU8200 (6EP3333-8SB00-0AY0) is a stabilized 24V DC/5A power supply that converts a 120/230V AC single-phase input into a regulated 24V DC output rated 120W, with automatic voltage-range selection and 93% efficiency. It buffers momentary mains dips for at least 35ms and mounts on a 35x7.5/15 DIN rail for SIMATIC and general 24V DC control-panel supply.
With a 5A/120W rating, the 6EP3333-8SB00-0AY0 sits at the lower end of the PSU8200 family; choose a higher-current PSU8200 variant when the connected load exceeds 120W continuous, or parallel two units of this size (supported, per the datasheet) when more headroom or redundancy is needed. The relay-contact 24V OK signal (60V DC/0.3A NO contact) and adjustable output (24-28.8V via potentiometer) let it feed voltage-sensitive SIMATIC I/O directly while reporting loss of regulation back to a controller input.
Fits DIN-rail control cabinets for machine building, process instrumentation, and SIMATIC-based automation panels needing a compact single-phase 24V DC supply with mains-dip buffering.
| product brand name | SITOP |
|---|---|
| product type designation | PSU8200 |
| product designation | Power supply SITOP modular |
| type of current supply | 24 V/5 A |
| type of the power supply network | 1-phase AC |
|---|---|
| phase number | 1 |
| voltage curve at input | AC |
| supply voltage at AC | Automatic range selection |
| supply voltage | 120 V/230 V |
| input voltage 1 at AC | 85 ... 132 V |
| input voltage 2 at AC | 170 ... 264 V |
| supply voltage: at 50 Hz | 230 V |
| supply voltage: at 60 Hz | 120 V |
| line frequency | 50/60 Hz |
| wide range input | No |
| buffering time for rated value of the output current in the event of power failure minimum | 35 ms |
| operating condition of the mains buffering | at Vin = 120/230 V |
| input current: at rated input voltage 120 V | 2.1 A |
| input current: at rated input voltage 230 V | 1.2 A |
| current limitation of inrush current at 25 °C maximum | 10 A |
| I2t value maximum | 0.2 A2·s |
| fuse protection type | T 3.15 A (not accessible) |
| fuse protection type in the feeder | Recommended miniature circuit breaker at 1-phase operation: from 6 A (10 A) characteristic C (B); required at 2-phase operation: circuit breaker 2-pole connected or circuit breaker 3RV2011-1EA10 (setting 3.8 A) or 3RV2711- 1ED10 (UL 489) at 230 V; 3RV2011-1DA10 (setting 3 A) or 3RV2711-1DD10 (UL 489) at 400/500 V |
| 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 ... 28.8 V; max. 120 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 | 50 mV |
| voltage peak: maximum | 200 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 | Overshoot of Vout approx. 3 % |
| response delay maximum | 1.5 s |
| voltage increase time of the output voltage: typical | 30 ms |
| output current: rated value | 5 A |
| output current: rated range | 0 ... 5 A; As of Ua>24 V: 4% [Ia]/V [Ua]; at Ue<100 V/<200 V: 80% Ia rated |
| supplied active power typical | 120 W |
| short-term overload current: at short-circuit during operation typical | 15 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 | 6 A |
| bridging of equipment | Yes; switchable characteristic |
| number of parallel-switched equipment resources for increasing the power | 2 |
| Part number | 6EP3333-8SB00-0AY0 |
|---|---|
| Type designation | PSU8200 |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515154358 |
| ETIM class | EC002540 |
| eCl@ss | 27040701 |
| efficiency in percent | 93 % |
|---|---|
| power loss [W]: at rated output voltage for rated value of the output current typical | 9 W |
| power loss [W]: during no-load operation maximum | 1.5 W |
| 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 | 2% |
| setting time: load step 50 to 100% typical | 0.25 ms |
| setting time: load step 100 to 50% typical | 0.5 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 | 0.25 ms |
| setting time: load step 90 to 10% typical | 0.5 ms |
| setting time: maximum | 1 ms |
| design of the overvoltage protection | < 33 V |
|---|---|
| property of the output short-circuit proof | Yes |
| design of short-circuit protection | Alternatively, constant current characteristic approx. 6 A or latching shutdown |
| typical | 6 A |
| overcurrent overload capability: in normal operation | overload capability 150 % Iout rated up to 5 s/min |
| enduring short circuit current RMS value: typical | 6 A |
| display version for overload and short circuit | LED yellow for "overload", LED red for "latching shutdown" |
| galvanic isolation 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 | 1 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 |
| type of certification: BIS | Yes; R-41183539 |
| type of certification: CB-certificate | Yes |
| MTBF at 40 °C | 1 421 519 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) | 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 |
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 247.4 kg |
| global warming potential [CO2 eq]: during manufacturing | 19.1 kg |
| global warming potential [CO2 eq]: during operation | 227.9 kg |
| global warming potential [CO2 eq]: after end of life | 0.16 kg |
| ambient temperature: during operation | -25 ... +70 °C; With natural convection; startup tested starting from -40 °C nominal voltage |
|---|---|
| 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 | L, N, PE: 1 screw terminal each for 0.2 ... 2.5 mm2 single-core/finely stranded |
| at output | +, -: 2 screw terminals each for 0.2 ... 2.5 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 |
| width × height × depth of the enclosure | 45 × 125 × 125 mm |
|---|---|
| installation width × mounting height | 45 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 |
| electrical accessories | Buffer module |
|---|---|
| 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 | 19.1 kg |
|---|
| Net weight | 0.8 kg |
|---|---|
| Country of origin | Romania |
| Shipping weight | 1.3 kg |
| Ships from | Türkiye |
| Dispatch | 13 Nov |
| Stock | In stock |
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 5 A.
The rated operational voltage of PSU8200 is 120–230 V AC.
The rated motor power of PSU8200 is 0.12 kW.
The tariff (HS) code on file for PSU8200 is 85044083.
The EAN (GTIN) of PSU8200 is 4025515154358.
PSU8200 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Master PLC system components: CPU, power supply, I/O modules, communication interfaces, and software with sizing formulas and selection tips. Shop at Stoklink.