{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6EP1331-2BA10","brand":"Siemens","brandSlug":"siemens","productSlug":"6EP1331-2BA10","canonicalUrl":"https://aoctrl.com/siemens/6EP1331-2BA10","factsUrl":"https://aoctrl.com/api/mcp/products/6EP1331-2BA10","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SITOP PSU100M, 6EP1331-2BA10, 24 V DC / 0.5 A regulated power supply, 120-230 V AC input, DIN rail mount, IP20, UL/CSA listed.","salesMarkdown":"The Siemens 6EP1331-2BA10 is a SITOP PSU100M series regulated switch-mode power supply that takes a 120-230 V AC line input and delivers a safety extra-low voltage (SELV) 24 V DC output rated at 0.5 A continuous. It snaps onto a standard DIN rail EN 60715 35x7.5/15, occupying just 22.5 mm of panel width — a single module slot. The 74% efficiency figure is typical for this class at full load; at lighter draws it runs cooler, which matters when you stack several units in a sealed enclosure. The 0.5 A output at 24 V DC (12 W) is sized for small control loads: a handful of relays, a compact PLC, or a few sensors. It is not a motor-starter supply. The input accepts 120-230 V AC, 47-63 Hz, which covers single-phase mains globally. The internal fuse is a non-accessible T 2 A/250 V — if it blows, the unit is replaced, not repaired. The I²t rating of 0.3 A²·s tells you the inrush energy the output can handle; keep the capacitive load on the 24 V bus under that threshold to avoid nuisance tripping on power-up. Snaps onto DIN rail EN 60715 35x7.5/15. The 22.5 mm width means it takes one standard module position — useful when you are filling a crowded row. Input terminals: L, N, PE each accept one 0.5-2.5 mm² conductor. Output side: one terminal for +, two terminals for - (allowing daisy-chain return wiring). The recommended upstream protection is a 3 A characteristic C miniature circuit breaker.","metaTitle":"Siemens 6EP1331-2BA10 SITOP PSU100M 0.5A Power Supply","metaDescription":"Siemens 6EP1331-2BA10 SITOP PSU100M power supply, 0.5 A rated output, 120-230 VAC input, 24 VDC SELV output. UL/CSA listed, DIN rail mount. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["DIN Rail Power Supplies"],"specifications":{"ATEX":"No","IECEx":"No","title":"6EP1331-2BA10","DNV GL":"No","Maximum":"3.5 mA","Typical":"20 ms","At Input":"L, N, PE: 1 screw terminal each for 0.5 ... 2.5 mm² single-core/finely stranded","At Output":"+: 1 screw terminal for 0.5 ... 2.5 mm²; -: 2 screw terminals for 0.5 ... 2.5 mm²","CE marking":"Yes","NEC Class 2":"No","Rated Range":"0 ... 0.5 A","Rated Value":"0.5 A","UL approval":"Yes; cULus-Listed (UL 508, CSA C22.2 No. 142), File E143289; cURus-Recognized (UL 60950, CSA C22.2 No. 60950), File E151273","description":"SITOP power 0.5 A, Regulated power supply input: 120-230 V AC output: 24 V DC/0.5 A","CSA approval":"Yes; cULus-Listed (UL 508, CSA C22.2 No. 142), File E143289, cURus-Recognized (UL 60950, CSA C22.2 No. 60950), File E151273","EAC approval":"Yes","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","In The Feeder":"Recommended miniature circuit breaker: from 3 A characteristic C","Initial Value":"93 V","During Storage":"-40 ... +70 °C","Line Frequency":"47 ... 63 Hz","MTBF at 40 °C":"1 673 584 h","FM registration":"No","lifecycle_stage":"current","During Operation":"-25 ... +70 °C; with natural convection","During Transport":"-40 ... +70 °C","Fastening Method":"Snaps onto DIN rail EN 60715 35x7.5/15","Full-Scale Value":"264 V","I2t value maximum":"0.3 A²·s","Other Information":"Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)","ULhazloc approval":"No","Galvanic Isolation":"Safety extra-low output voltage Uout acc. to EN 60950-1 and EN 50178","Maximum Rated Value":"230 V","Minimum Rated Value":"120 V","protection class IP":"IP20","Fuse Protection Type":"T 2 A/250 V (not accessible)","Bridging Of Equipment":"No","Efficiency In Percent":"74 %","Depth Of The Enclosure":"91 mm","Response Delay Maximum":"1.5 s","Width Of The Enclosure":"22.5 mm","Height Of The Enclosure":"80 mm","Voltage Curve At Output":"Controlled, isolated DC voltage","For Emitted Interference":"EN 55022 Class B","Nippon Kaiji Kyokai (NK)":"No","For Interference Immunity":"EN 61000-6-2","cCSAus, Class 1, Division 2":"No","Load Step 100 To 50% Typical":"1.5 ms","Load Step 50 To 100% Typical":"1.5 ms","at rated input voltage 120 V":"0.22 A","at rated input voltage 230 V":"0.13 A","Supplied Active Power Typical":"12 W","Type Of Electrical Connection":"screw-type terminals","at output 1 at DC rated value":"24 V","Overvoltage Overload Capability":"2.3 × Vin rated, 1.3 ms","Design Of Input Wide Range Input":"Yes","Type Of The Power Supply Network":"1-phase AC","output voltage at DC rated value":"24 V","Lloyds Register of Shipping (LRS)":"No","Response Value Current Limitation":"0.55 ... 0.65 A","Design Of Short-Circuit Protection":"Constant current characteristic up to 0 V","On Slow Fluctuation Of Ohm Loading":"0.7 %","Operating Resource Protection Class":"Class I","Design Of The Overvoltage Protection":"Yes, according to EN 60950","Display Version For Normal Operation":"Green LED for 24 V OK","On Slow Fluctuation Of Input Voltage":"0.2 %","At Short-Circuit During Operation Typical":"0.6 A","French marine classification society (BV)":"No","Relative Overall Tolerance Of The Voltage":"3 %","Operating Condition Of The Mains Buffering":"at Vin = 230 V","Product Function Output Voltage Adjustable":"No","Property Of The Output Short-Circuit Proof":"Yes","Galvanic Isolation Between Input And Output":"Yes","American Bureau of Shipping Europe Ltd. (ABS)":"No","environmental category according to IEC 60721":"Climate class 3K3, 5 … 95% no condensation","On Short-Circuiting During The Start-Up Typical":"0.6 A","Behavior Of The Output Voltage When Switching On":"No overshoot of Vout (soft start)","current limitation of inrush current at 25 °C maximum":"23 A","Product Feature Of The Enclosure Housing Can Be Lined Up":"Yes","At Rated Output Voltage For Rated Value Of The Output Current Typical":"4.2 W","Buffering Time For Rated Value Of The Output Current In The Event Of Power Failure Minimum":"10 ms","Relative Control Precision Of The Output Voltage With Rapid Fluctuation Of The Input Voltage By +/- 15% Typical":"0.3 %"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$34.29 – $98.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e9d7f5cd548653e4b5dd8bad8b62945f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=63663&mlfb=6EP1331-2BA10"},"ai":{"faq":[{"question":"What approvals does the 6EP1331-2BA10 carry?","answer":"It carries UL 508 and CSA C22.2 No. 142 listing (cULus-Listed, file E143289), cURus recognition to UL 60950 / CSA 60950 (file E151273), CE marking, and EAC approval. It does not have ATEX, IECEx, DNV GL, FM, or UL hazloc certification."},{"question":"Where can I buy the 6EP1331-2BA10?","answer":"This unit is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6EP1331-2BA10","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/6EP1331-2BA10 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}