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 SITOP PSU100C (6EP1332-5BA10) is a stabilized DIN-rail power supply converting 100-230 V AC (or 110-300 V DC) input to a regulated 24 V DC / 4 A output, adjustable 22.2-26.4 V via potentiometer. It reaches 88% efficiency, tolerates a 34 A inrush current, and carries a CE mark plus cULus and EAC approvals in an IP20 enclosure.
The 100-230 V AC / 110-300 V DC dual-rated input means this unit runs unchanged on either an AC mains feed or a DC control-voltage bus, which matters on panels where a common DC backbone feeds multiple loads. A 4 A / 96 W rating sits at the lower end of the PSU100C range; loads approaching or exceeding that figure need the next current step rather than paralleling units casually, though up to 2 units can be paralleled per the datasheet for redundancy or added capacity. The output remains adjustable 22.2-26.4 V through a potentiometer, useful for compensating voltage drop on long DC field-wiring runs. Marine classification (ABS, DNV) extends its use onto ship and offshore panels beyond standard industrial installations.
24 V DC control-cabinet power for PLCs, I/O, sensors, and contactor coils on general industrial panels, including marine and offshore installations where ABS/DNV classification is required.
| product brand name | SITOP |
|---|---|
| product type designation | PSU100C |
| product designation | Power supply SITOP PSU100C |
| type of current supply | 24 V/4 A |
| type of the power supply network | 1-phase AC or DC |
|---|---|
| phase number | 1 |
| voltage curve at input | AC/DC |
| supply voltage at AC: minimum rated value | 100 V |
| supply voltage at AC: maximum rated value | 230 V |
| supply voltage at AC: initial value | 85 V |
| supply voltage at AC: full-scale value | 264 V |
| input voltage at DC | 110 ... 300 V |
| supply voltage: at 50 Hz | 230 V |
| supply voltage: at 60 Hz | 100 V |
| line frequency | 50/60 Hz |
| wide range input | Yes |
| overvoltage overload capability | 2.3 × Vin rated, 1.3 ms |
| buffering time for rated value of the output current in the event of power failure minimum | 20 ms |
| operating condition of the mains buffering | at Vin = 230 V |
| input current: at rated input voltage 100 V | 2.25 A |
| input current: at rated input voltage 230 V | 1.15 A |
| current limitation of inrush current at 25 °C maximum | 34 A |
| I2t value maximum | 3 A2·s |
| fuse protection type | internal |
| fuse protection type in the feeder | Recommended miniature circuit breaker: from 16 A characteristic B or from 10 A characteristic C |
| 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 | 22.2 ... 26.4 V |
| 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 | 200 mV |
| residual ripple: typical | 80 mV |
| voltage peak: maximum | 300 mV |
| voltage peak: typical | 80 mV |
| display version for normal operation | Green LED for output voltage OK |
| behavior of the output voltage when switching on | Overshoot of Vout approx. 1 % |
| response delay maximum | 1.5 s |
| voltage increase time of the output voltage: typical | 400 ms |
| output current: rated value | 4 A |
| output current: rated range | 0 ... 4 A; +55 ... +70 °C: Derating 3%/K; at +70 °C Iout rated 2.2 A |
| supplied active power typical | 96 W |
| bridging of equipment | Yes; Start-up with single nominal load only |
| number of parallel-switched equipment resources for increasing the power | 2 |
| Part number | 6EP1332-5BA10 |
|---|---|
| Type designation | PSU100C |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515152620 |
| ETIM class | EC002540 |
| eCl@ss | 27040701 |
| efficiency in percent | 88 % |
|---|---|
| power loss [W]: at rated output voltage for rated value of the output current typical | 13 W |
| power loss [W]: during no-load operation maximum | 0.75 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 at load step of resistive load 10/90/10 % typical | 3% |
| setting time: load step 10 to 90% typical | 4 ms |
| setting time: load step 90 to 10% typical | 4 ms |
| design of the overvoltage protection | < 60 V |
|---|---|
| property of the output short-circuit proof | Yes |
| design of short-circuit protection | Electronic shutdown, automatic restart |
| typical | 4.8 A |
| 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 | 0.4 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: NEC Class 2 | No |
| type of certification: CB-certificate | Yes |
| MTBF at 40 °C | 2 726 727 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 | 389.3 kg |
| global warming potential [CO2 eq]: during manufacturing | 6 kg |
| global warming potential [CO2 eq]: during operation | 382.9 kg |
| global warming potential [CO2 eq]: after end of life | 0.22 kg |
| ambient temperature: during operation | -20 ... +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 | L, N, PE: Removable screw terminal, each for 1 x 0.5 ... 2.5 mm2 |
| at output | +: 1 screw terminal for 0.5 ... 2.5 mm2; -: 2 screw terminals for 0.5 ... 2.5 mm2 |
| for auxiliary contacts | - |
| width × height × depth of the enclosure | 52.5 × 80 × 100 mm |
|---|---|
| installation width × mounting height | 52.5 mm × 180 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 | Removable spring-type terminal 6EP1971-5BA00 |
|---|
| 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 | 6 kg |
|---|
| Net weight | 0.32 kg |
|---|---|
| Country of origin | Romania |
| Shipping weight | 0.82 kg |
| Ships from | Türkiye |
| Dispatch | 16 Nov |
| Stock | Low 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 PSU100C is 4 A.
The rated operational voltage of PSU100C is 100–230 V AC.
The rated motor power of PSU100C is 13 W kW.
The tariff (HS) code on file for PSU100C is 85044083.
The EAN (GTIN) of PSU100C is 4025515152620.
PSU100C 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.