{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6EP3321-7SB00-0AX0","brand":"Siemens","brandSlug":"siemens","productSlug":"6EP3321-7SB00-0AX0","canonicalUrl":"https://aoctrl.com/siemens/6EP3321-7SB00-0AX0","factsUrl":"https://aoctrl.com/api/mcp/products/6EP3321-7SB00-0AX0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SITOP PSU8200, 6EP3321-7SB00-0AX0, 24 V DC / 2.8 A switched-mode power supply, 120-240 V AC input, DIN rail mount, IP20, SELV output.","salesMarkdown":"The Siemens 6EP3321-7SB00-0AX0 is a SITOP PSU8200 series switched-mode power supply delivering a rated 24 V DC at 2.8 A typical output, with a DC input range of 110–275 V and AC input 120–240 V at 47–63 Hz. It snaps onto a standard DIN rail EN 60715 35×7.5/15, making it a drop-in replacement in most control cabinets. The output is safety extra-low voltage (SELV) per EN 60950-1, which simplifies panel wiring for control circuits and reduces isolation requirements downstream. This unit carries cULus listing under UL 508 and CSA C22.2 No. 107.1 (File E197259), plus cCSAus to CSA C22.2 No. 60950-1 and UL 60950-1. CE marking and EAC approval are confirmed. It is also rated NEC Class 2 per UL 60950-1/UL 1310, which matters for installations where the power-limited circuit classification avoids conduit requirements for the load side. No ATEX, IECEx, or UL hazloc approval — this unit is for general-purpose industrial environments, not explosive atmospheres. Mounts by snapping onto DIN rail EN 60715 35×7.5/15. Required free space above and below the unit is 50 mm each; no clearance needed on the left or right sides. This 50 mm vertical clearance is for natural convection cooling — the unit is rated for operation at -25 to +70 °C with natural convection. If you stack units or enclose them tightly, derate or add forced air. The housing is IP20, so it's suitable for clean indoor panels only. ## Feeder Protection and Wiring The input requires a circuit breaker sized between 4 A characteristic C and 16 A characteristic C, or 6 A characteristic B to 16 A characteristic C, or a specific Siemens 3RV2011-1EA10 (set to 4 A) or 3RV2711-1ED10 (UL 489). Input terminals (/+, L2/N/-, PE) accept 0.5–2.5 mm² single-core or finely stranded wire via PushIn connectors; output terminals (+1, -1, -2) use the same PushIn style for 0.5–2.5 mm². Integral fuse protection is rated at 3.15 A.","metaTitle":"Siemens 6EP3321-7SB00-0AX0 SITOP PSU8200, 24V 2.8A, DIN Rail","metaDescription":"Siemens 6EP3321-7SB00-0AX0 SITOP PSU8200 power supply, 24V DC, 2.8A output, 120-240V AC input. UL/CSA listed, SELV output, snaps onto DIN rail. Current lifecycle status: active pro","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["DIN Rail Power Supplies"],"specifications":{"Top":"50 mm","ATEX":"No","Left":"0 mm","IECEx":"No","Right":"0 mm","at DC":"110 ... 275 V","title":"6EP3321-7SB00-0AX0","Bottom":"50 mm","C-Tick":"No","DNV GL":"No","Maximum":"3.5 mA","Typical":"2.8 A","At Input":"L1/+, L2/N/-, PE: PushIn for 0.5 ... 2.5 mm² single-core/finely stranded","At Output":"+1, -1, -2: PushIn for 0.5 ... 2.5 mm²","CE marking":"Yes","NEC Class 2":"Yes; acc. to UL 60950-1/UL 1310, File E151273","Rated Range":"0 ... 2 A","Rated Value":"2 A","UL approval":"Yes; cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259; cCSAus (CSA C22.2 No. 60950-1, UL 60950-1)","description":"SITOP PSU6200 12 V/2 A Stabilized power supply Input: 120 - 230 V AC, (120 - 240 V DC) Output: 12 V DC/2 A","CSA approval":"Yes; cULus-Listed (UL 508, CSA C22.2 No. 107.1), File E197259; cCSAus (CSA C22.2 No. 60950-1, UL 60950-1)","EAC approval":"Yes","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","In The Feeder":"Circuit breaker from 4 A characteristic C/6 A characteristic B to 16 A characteristic C or circuit breaker 3RV2011-1EA10 (setting 4 A) or 3RV2711-1ED10 (UL 489)","Initial Value":"85 V","During Storage":"-40 ... +85 °C","Line Frequency":"47 ... 63 Hz","FM registration":"No","lifecycle_stage":"current","During Operation":"-25 ... +70 °C; with natural convection","During Transport":"-40 ... +85 °C","Fastening Method":"Snaps onto DIN rail EN 60715 35x7.5/15","Full-Scale Value":"264 V","Number Of Outputs":"1","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 Vout according to EN 60950-1","Maximum Rated Value":"240 V","Minimum Rated Value":"120 V","protection class IP":"IP20","Fuse Protection Type":"3.15 A","Bridging Of Equipment":"No","Efficiency In Percent":"83.3 %","Shipbuilding Approval":"ABS; in process: DNV","Depth Of The Enclosure":"88 mm","Electrical Accessories":"Redundancy module","Mechanical Accessories":"Identification labels SIMATIC ET 200SP 6ES7193-6LF30-0AW0","Response Delay Maximum":"1 s","Width Of The Enclosure":"25 mm","Height Of The Enclosure":"100 mm","Voltage Curve At Output":"Controlled, isolated DC voltage","For Emitted Interference":"EN 55022 Class B","Nippon Kaiji Kyokai (NK)":"No","Adjustable Output Voltage":"10.5 ... 12.9 V","For Interference Immunity":"EN 61000-6-2","Load Step 10 To 90% Typical":"2 ms","Load Step 90 To 10% Typical":"2 ms","cCSAus, Class 1, Division 2":"No","at rated input voltage 120 V":"0.45 A","at rated input voltage 240 V":"0.25 A","Supplied Active Power Typical":"24 W","Type Of Electrical Connection":"Push-in terminals","at output 1 at DC rated value":"12 V","For Mains Harmonics Limitation":"EN 61000-3-2","Type Of Output Voltage Setting":"via potentiometer; max. 24 W","Overvoltage Overload Capability":"300 V AC for 30 s","Design Of Input Wide Range Input":"Yes","During NO-Load Operation Maximum":"0.8 W","Regulatory Compliance Mark (RCM)":"No","Type Of The Power Supply Network":"1-phase AC or DC","output voltage at DC rated value":"12 V","Lloyds Register of Shipping (LRS)":"No","Design Of Short-Circuit Protection":"Shutdown and periodic restart attempts","On Slow Fluctuation Of Ohm Loading":"0.3 %","Operating Resource Protection Class":"Class I","Design Of The Overvoltage Protection":"< 20 V","Display Version For Normal Operation":"Green LED for 24 V OK","On Slow Fluctuation Of Input Voltage":"0.3 %","At Short-Circuit During Operation Typical":"2 A","French marine classification society (BV)":"No","Relative Overall Tolerance Of The Voltage":"3 %","Operating Condition Of The Mains Buffering":"at Vin = 240 V","Product Function Output Voltage Adjustable":"Yes","Property Of The Output Short-Circuit Proof":"Yes","Galvanic Isolation Between Input And Output":"Yes","American Bureau of Shipping Europe Ltd. (ABS)":"Yes","environmental category according to IEC 60721":"Climate class 3K3, 5 … 95% no condensation","On Short-Circuiting During The Start-Up Typical":"2 A","Behavior Of The Output Voltage When Switching On":"Overshoot of Vout approx. 3 %","current limitation of inrush current at 25 °C maximum":"32 A","Product Feature Of The Enclosure Housing Can Be Lined Up":"Yes","At Rated Output Voltage For Rated Value Of The Output Current Typical":"5 W","Buffering Time For Rated Value Of The Output Current In The Event Of Power Failure Minimum":"150 ms"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$59.69 – $150.04","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/6fa39f4c6627c3cbb9b06c00dd51009a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=1266053&mlfb=6EP3321-7SB00-0AX0"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 6EP3321-7SB00-0AX0?","answer":"Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through independent distribution channels — no automated price or stock count is shown here."},{"question":"What compliance documentation does this brand provide for 6EP3321-7SB00-0AX0?","answer":"The unit carries cULus listing (UL 508, CSA C22.2 No. 107.1), cCSAus (UL 60950-1, CSA C22.2 No. 60950-1), CE marking, EAC approval, and NEC Class 2 rating per UL 1310. No ATEX, IECEx, or UL hazloc certification."},{"question":"What is 6EP3321-7SB00-0AX0's listed top clearance (50 mm) on this component line?","answer":"The required free space above and below the unit is 50 mm each. Left and right sides require 0 mm clearance. This vertical clearance supports natural convection cooling within the -25 to +70 °C operating range."},{"question":"What is 6EP3321-7SB00-0AX0's listed ATEX rating?","answer":"ATEX rating is No. This unit is not certified for explosive atmospheres. IECEx and UL hazloc are also not approved. It is intended for general-purpose industrial control panels."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6EP3321-7SB00-0AX0","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/6EP3321-7SB00-0AX0 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}}