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- Part number
- 6EP1321-1LD01
- Model no
- PSU100D
SITOP PSU100DSiemens 6EP1321-1LD01 SITOP PSU100D 12V/3A Stabilized Power Supply 100-240V AC Input Power Supply
SITOP PSU100D 12V/3A stabilized power supply, 100-240V AC input, 86% efficiency, wall-mount.
Description
About the PSU100D
About the PSU100D
The Siemens 6EP1321-1LD01 is a SITOP PSU100D stabilized power supply converting 100-240 V AC single-phase input into a regulated, adjustable 12 V DC output at up to 3 A. It reaches 86% efficiency, holds output within 1% overall tolerance, rides through a 16 ms mains interruption at rated load, and mounts directly to the wall in an 82 x 29 x 99 mm enclosure.
Certifications & Standards
- CE
- UKCA
- CB
- EPD
Selection Notes
The 16 ms buffering time and 45 A inrush rating let the PSU100D ride through short mains dips without dropping the 12 V rail, and the potentiometer-adjustable output (10.8-13.2 V) allows compensating for cable voltage drop on longer runs to the load. Choose this 3 A rating over the lighter PSU100D variants when the connected load's steady-state current stays under 3 A; the electronic short-circuit protection auto-restarts once the fault clears, so no manual reset is needed after a transient short.
Specification
Full specification
General information 4
| product brand name | SITOP |
|---|---|
| product type designation | PSU100D |
| product designation | Power supply SITOP |
| type of current supply | 12 V/3 A |
Input 20
| type of the power supply network | 1-phase AC |
|---|---|
| phase number | 1 |
| voltage curve at input | AC |
| supply voltage at AC: minimum rated value | 100 V |
| supply voltage at AC: maximum rated value | 240 V |
| supply voltage at AC: initial value | 90 V |
| supply voltage at AC: full-scale value | 264 V |
| supply voltage: at 50 Hz | 240 V |
| supply voltage: at 60 Hz | 100 V |
| line frequency | 50/60 Hz |
| wide range input | Yes |
| overvoltage overload capability | 1.25 × Vin rated, 500 ms |
| buffering time for rated value of the output current in the event of power failure minimum | 16 ms |
| operating condition of the mains buffering | at Vin = 115/230 V |
| input current: at rated input voltage 100 V | 0.85 A |
| input current: at rated input voltage 240 V | 0.5 A |
| current limitation of inrush current at 25 °C maximum | 45 A |
| I2t value maximum | 1.5 A2·s |
| fuse protection type | T3.15AL250V (internal) |
| fuse protection type in the feeder | Recommended miniature circuit breaker: from 16 A characteristic B, from 20 A characteristic B (for North America) |
Output 19
| 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 | 12 V |
| output voltage: at output 1 at DC rated value | 12 V |
| output voltage: at output 1 at DC | 12 V |
| output voltage adjustable | Yes; via potentiometer |
| adjustable output voltage | 10.8 ... 13.2 V |
| relative overall tolerance of the voltage | 1% |
| relative control precision of the output voltage: on slow fluctuation of input voltage | 0.5 % |
| voltage peak: maximum | 120 mV |
| display version for normal operation | Green LED for 12 V OK |
| behavior of the output voltage when switching on | Overshoot of Vout < 10 % |
| response delay maximum | 1 s |
| voltage increase time of the output voltage: maximum | 30 ms |
| output current: rated value | 3 A |
| output current: rated range | 0 ... 3 A; +50 ... +70 °C: Derating 2.0%/K |
| supplied active power typical | 35 W |
| bridging of equipment | No |
Show all 116 specifications ↓ Show less ↑73 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, Additional information, Version Classification, Logistics.
Identification 10
| Part number | 6EP1321-1LD01 |
|---|---|
| Type designation | PSU100D |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 4025515156178 |
| ETIM class | EC002540 |
| eCl@ss | 27040701 |
Efficiency 2
| efficiency in percent | 86 % |
|---|---|
| power loss [W]: at rated output voltage for rated value of the output current typical | 5.7 W |
Closed-loop control 3
| relative control precision of the output voltage load step of resistive load 50/100/50 % typical | 10 % |
|---|---|
| setting time: load step 50 to 100% typical | 4 ms |
| setting time: load step 100 to 50% typical | 4 ms |
Protection and monitoring 5
| design of the overvoltage protection | < 17.4 V |
|---|---|
| property of the output short-circuit proof | Yes |
| design of short-circuit protection | Electronic shutdown, automatic restart |
| response value current limitation | 3.3 ... 5.25 A |
| enduring short circuit current RMS value: typical | 4 A |
Safety 4
| 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 | 0.5 mA |
EMC 3
| standard: for emitted interference | EN 55032 Class B |
|---|---|
| standard: for mains harmonics limitation | IEC 61000-3-2 |
| standard: for interference immunity | EN 55035 |
Standards, specifications, approvals 8
| certificate of suitability: CE marking | Yes |
|---|---|
| certificate of suitability: UL approval | Yes; cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259; cURus (UL 62368-1, CSA C22.2 NO 62368-1-14), File E151273 |
| certificate of suitability: UKCA marking | Yes |
| certificate of suitability: EAC approval | No |
| certificate of suitability: NEC Class 2 | No |
| type of certification: BIS | Yes; R-61003204 |
| type of certification: CB-certificate | Yes |
| MTBF at 25 °C | 700 000 h; according to SR-332, 100% full load (12 V, 3 A), input voltage: 115 V / 230 V AC |
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 | 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 |
Standards, specifications, approvals Environmental Product Declaration 5
| Environmental Product Declaration | Yes |
|---|---|
| global warming potential [CO2 eq]: total | 181.8 kg |
| global warming potential [CO2 eq]: during manufacturing | 3.4 kg |
| global warming potential [CO2 eq]: during operation | 178.3 kg |
| global warming potential [CO2 eq]: after end of life | 0.05 kg |
Ambient conditions 4
| ambient temperature: during operation | -25 ... +70 °C; with natural convection; The device is not recommended to be placed on low thermal conductive surface (e. g. plastics). |
|---|---|
| ambient temperature: during transport | -40 ... +85 °C |
| ambient temperature: during storage | -40 ... +85 °C |
| relative humidity with condensation according to IEC 60068-2-38 maximum | 20 ... 90% without condensation |
Connection method 4
| type of electrical connection | screw terminal |
|---|---|
| at input | L, N, PE: 1 screw terminal each for 0.75 ... 2 mm2 single-core/finely stranded |
| at output | +, -: 1 screw terminal each for 0.75 ... 2 mm2 |
| for auxiliary contacts | - |
Mechanical data 5
| width × height × depth of the enclosure | 82 × 29 × 99 mm |
|---|---|
| fastening method | Wall mounting |
| DIN-rail mounting | No |
| S7 rail mounting | No |
| wall mounting | Yes |
Additional information 1
| other information | Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified) |
|---|
Version Classification 4
| eClass | 16 27-04-07-01 |
|---|---|
| ETIM | 10 EC002540 |
| IDEA | 4 4130 |
| UNSPSC | 15 39-12-10-04 |
Logistics 6
| Net weight | 0.17 kg |
|---|---|
| Country of origin | IN |
| Shipping weight | 0.67 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
Documents for 6EP1321-1LD01
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Ask us for the datasheet
Certifications
Certifications and standards
- CE marking
- UKCA marking
- CB-certificate
- Environmental Product Declaration
Quick answers
Questions about the PSU100D
What is the rated current of PSU100D?
The rated current of PSU100D is 3 A.
Which supply voltage is PSU100D rated for?
The rated operational voltage of PSU100D is 100–240 V AC.
What motor power is PSU100D rated for?
The rated motor power of PSU100D is 35 W kW.
What is the HS code of PSU100D for customs?
The tariff (HS) code on file for PSU100D is 85044083.
What is the EAN of PSU100D?
The EAN (GTIN) of PSU100D is 4025515156178.
Where does PSU100D ship from, and how fast?
PSU100D ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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Series
Siemens SITOP PSU100D
- Brand
- Siemens
- Series
- SITOP PSU100D
