Main Components of a PLC System: Complete Guide for Engineers
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The Siemens 6EP1332-1LB00 is a SITOP PSU100L single-phase power supply that converts a switch-selectable 120 V or 230 V AC input into a stabilized 24 V DC output at up to 2.5 A. It reaches 85% efficiency, mounts in a compact 32.5 x 125 x 120 mm DIN-rail housing, and carries an MTBF of 3,153,082 hours at 40°C.
The 2.5 A output places this PSU100L variant at the lower end of the family — pick it for DIN-rail loads up to 60 W and step up to the 10 A version in the same PSU100L series when a cabinet needs more current from a single unit. Two units of this rating can be parallel-switched to increase available power, and the output voltage is field-adjustable between 22.8 V and 26.4 V via the on-device potentiometer for loads that need a trimmed supply voltage.
DIN-rail 24 V DC supply for PLC I/O, sensors and small control loads in cabinets running on a 120/230 V AC single-phase mains, where 60 W of continuous output covers the connected load.
| product brand name | SITOP |
|---|---|
| product type designation | PSU100L |
| product designation | Power supply SITOP lite |
| type of current supply | 24 V/2.5 A |
| type of the power supply network | 1-phase AC |
|---|---|
| phase number | 1 |
| voltage curve at input | AC |
| supply voltage at AC | Set by means of selector switch on the device |
| supply voltage | 120 V/230 V |
| input voltage 1 at AC | 93 ... 132 V |
| input voltage 2 at AC | 187 ... 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 |
| 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 = 93/187 V |
| input current: at rated input voltage 120 V | 1.1 A |
| input current: at rated input voltage 230 V | 0.65 A |
| current limitation of inrush current at 25 °C maximum | 27 A |
| duration of inrush current limiting at 25 °C: typical | 3 ms |
| I2t value maximum | 0.3 A2·s |
| fuse protection type | T 2 A/250 V (not accessible) |
| fuse protection type in the feeder | Recommended miniature circuit breaker: from 3 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 | 22.8 ... 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 | 150 mV |
| residual ripple: typical | 10 mV |
| voltage peak: maximum | 240 mV |
| voltage peak: typical | 50 mV |
| display version for normal operation | Green LED for 24 V OK |
| behavior of the output voltage when switching on | Overshoot of Vout approx. 4 % |
| response delay maximum | 1.5 s |
| voltage increase time of the output voltage: typical | 150 ms |
| output current: rated value | 2.5 A |
| output current: rated range | 0 ... 2.5 A; +45 ... +60 °C: Derating 2%/K |
| supplied active power typical | 60 W |
| bridging of equipment | Yes |
| number of parallel-switched equipment resources for increasing the power | 2 |
| Part number | 6EP1332-1LB00 |
|---|---|
| Type designation | PSU100L |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Phase-out announced by the manufacturer |
| EAN | 4025515152972 |
| ETIM class | EC002540 |
| eCl@ss | 27040701 |
| efficiency in percent | 85 % |
|---|---|
| power loss [W]: at rated output voltage for rated value of the output current typical | 9 W |
| relative control precision of the output voltage with rapid fluctuation of the input voltage by +/- 15% typical | 0.3 % |
|---|---|
| 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 | 0.5 ms |
| setting time: load step 90 to 10% typical | 0.7 ms |
| design of the overvoltage protection | < 33 V |
|---|---|
| property of the output short-circuit proof | Yes |
| design of short-circuit protection | Constant current characteristic |
| typical | 2.6 A |
| enduring short circuit current RMS value: typical | 4 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 A |
|---|---|
| standard: for mains harmonics limitation | not applicable |
| 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: UKCA marking | Yes |
| certificate of suitability: EAC approval | Yes |
| certificate of suitability: NEC Class 2 | No |
| type of certification: CB-certificate | Yes |
| MTBF at 40 °C | 3 153 082 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 | No |
|---|---|
| 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) | No |
| Marine classification association: Lloyds Register of Shipping (LRS) | No |
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 252 kg |
| global warming potential [CO2 eq]: during manufacturing | 7.7 kg |
| global warming potential [CO2 eq]: during operation | 244 kg |
| global warming potential [CO2 eq]: after end of life | 0.22 kg |
| ambient temperature: during operation | 0 ... 60 °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: 1 screw terminal each for 0.5 ... 2.5 mm2 single-core/finely stranded |
| at output | +, -: 2 screw terminals each for 0.5 ... 2.5 mm2 |
| for auxiliary contacts | - |
| width × height × depth of the enclosure | 32.5 × 125 × 120 mm |
|---|---|
| installation width × mounting height | 32.5 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 |
| eClass | 16 27-04-07-01 |
|---|---|
| ETIM | 10 EC002540 |
| IDEA | 4 4130 |
| UNSPSC | 15 39-12-10-04 |
| Net weight | 0.3 kg |
|---|---|
| Country of origin | Romania |
| Shipping weight | 0.8 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 PSU100L is 2.5 A.
The rated operational voltage of PSU100L is 120–230 V AC.
The rated motor power of PSU100L is 0.06 kW.
The tariff (HS) code on file for PSU100L is 85044083.
The EAN (GTIN) of PSU100L is 4025515152972.
PSU100L 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.