{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6AG1437-3BA10-7AA0","brand":"Siemens","brandSlug":"siemens","productSlug":"6AG1437-3BA10-7AA0","canonicalUrl":"https://aoctrl.com/siemens/6AG1437-3BA10-7AA0","factsUrl":"https://aoctrl.com/api/mcp/products/6AG1437-3BA10-7AA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SITOP power supply, 6AG1437-3BA10-7AA0, 40 A rated, adjustable 24–28.8 V DC output, 92% efficiency, DIN rail mounting.","salesMarkdown":"## 40 A SITOP with Adjustable Output The Siemens 6AG1437-3BA10-7AA0 is a 40 A rated switched-mode power supply from the SITOP series. It accepts a three-phase input of 400–500 V AC (47–63 Hz) and delivers an adjustable output from 24 to 28.8 V DC. Efficiency reaches 92% at full rated load, keeping enclosure heat rise in check. ## DIN Rail Clearance and Derating For natural convection cooling, maintain 50 mm clearance above and below the unit (top and bottom, respectively). No side clearance is required — left and right clearances are both 0 mm. Below +60 °C ambient, the full 40 A is available; above that, derating applies at 3.75% per Kelvin up to +70 °C. The compact enclosure measures 150 mm wide by 125 mm high by 150 mm deep. The IP20 protection rating suits clean, dry control cabinets; for marine or dusty environments, the panel itself must provide ingress protection. ## EMC and Safety Compliance The unit carries CE marking and meets EN 55022 Class B for conducted and radiated emissions — critical for installations subject to vessel or industrial EMC surveys. Immunity is per EN 61000-6-2, covering the industrial environment. Galvanic isolation provides safety extra-low voltage (SELV) output per EN 60950-1 and EN 50178, suitable for feeding downstream 24 V loads.","metaTitle":"Siemens 6AG1437-3BA10-7AA0 SITOP Power Supply 40A","metaDescription":"Siemens 6AG1437-3BA10-7AA0 SITOP PSU, 24-28.8 VDC adjustable output, 40 A rated, 92% efficiency. DIN rail mount, IP20. EN 55022 Class B EMC. CE marked. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Industrial PCs"],"specifications":{"Top":"50 mm","Left":"0 mm","Right":"0 mm","title":"6AG1437-3BA10-7AA0","Bottom":"50 mm","Maximum":"3.5 mA","Typical":"44 A","At Input":"L1, L2, L3, PE: 1 screw terminal each for 0.2 ... 4 mm² single-core/finely stranded","At Output":"+, -: 2 screw terminals each for 0.33 ... 10 mm²","CE marking":"Yes","Rated Range":"0 ... 40 A; +60 ... +70 °C: Derating 3.75%/K","Rated Value":"40 A","description":"***spare part*** SIPLUS PS PSU8200 3-phase DC 24V 40A based on 6EP1437-3BA10 with conformal coating, -25…+70 °C, stabilized power supply input: 400-500 V 3 AC output: 24 V DC/40 A","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","In The Feeder":"Required: 3-pole connected miniature circuit breaker 10 ... 16 A characteristic C or circuit breaker 3RV2011-1DA10 (setting 3 A) or 3RV2711-1DD10 (UL 489)","Initial Value":"320 V","Line Frequency":"47 ... 63 Hz","MTBF at 40 °C":"885 739 h","lifecycle_stage":"current","Fastening Method":"Snaps onto DIN rail EN 60715 35x15","Full-Scale Value":"575 V","I2t value maximum":"2.24 A²·s","Other Information":"Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)","Galvanic Isolation":"Safety extra-low output voltage Uout acc. to EN 60950-1 and EN 50178","Maximum Rated Value":"500 V","Minimum Rated Value":"400 V","protection class IP":"IP20","Bridging Of Equipment":"Yes; switchable characteristic","Efficiency In Percent":"92 %","Depth Of The Enclosure":"150 mm","Electrical Accessories":"Buffer module","For Auxiliary Contacts":"13, 14 (alarm signal): 1 screw terminal each for 0.14 ... 1.5 mm²","Mechanical Accessories":"Device identification label 20 mm × 7 mm, pale turquoise 3RT1900-1SB20","Width Of The Enclosure":"150 mm","Height Of The Enclosure":"125 mm","Voltage Curve At Output":"Controlled, isolated DC voltage","For Emitted Interference":"EN 55022 Class B","Type Of Signal At Output":"Relay contact (NO contact, rating 60 V DC/ 0.3 A) for \"24 V OK\"","Adjustable Output Voltage":"24 ... 28.8 V","For Interference Immunity":"EN 61000-6-2","During Storage And Transport":"-40 ... +85 °C","at rated input voltage 400 V":"2.6 A","at rated input voltage 500 V":"2.1 A","Supplied Active Power Typical":"960 W","Type Of Electrical Connection":"screw-type terminals","at output 1 at DC rated value":"24 V","For Mains Harmonics Limitation":"EN 61000-3-2","Type Of Output Voltage Setting":"via potentiometer; max. 960 W","Design Of Input Wide Range Input":"Yes","Type Of The Power Supply Network":"3-phase AC","output voltage at DC rated value":"24 V","At Short-Circuit During Operation":"25 ms","Design Of Short-Circuit Protection":"Alternatively, constant current characteristic approx. 44 A or latching shutdown","On Slow Fluctuation Of Ohm Loading":"0.2 %","Operating Resource Protection Class":"Class I","Design Of The Overvoltage Protection":"< 35 V","Display Version For Normal Operation":"Green LED for 24 V OK","On Slow Fluctuation Of Input Voltage":"0.1 %","At Short-Circuit During Operation Typical":"120 A","Relative Overall Tolerance Of The Voltage":"3 %","Operating Condition Of The Mains Buffering":"at Vin = 400 V","Product Function Output Voltage Adjustable":"Yes","Property Of The Output Short-Circuit Proof":"Yes","Galvanic Isolation Between Input And Output":"Yes","Display Version For Overload And Short Circuit":"LED yellow for \"overload\", LED red for \"latching shutdown\"","On Short-Circuiting During The Start-Up Typical":"44 A","In Horizontal Mounting Position During Operation":"-25 ... +70 °C; with natural convection","Overcurrent Overload Capability In Normal Operation":"overload capability 150 % Iout rated up to 5 s/min","current limitation of inrush current at 25 °C maximum":"56 A","Installation Altitude At Height Above Sea Level Maximum":"6 000 m","Product Feature Of The Enclosure Housing Can Be Lined Up":"Yes","Chemical Resistance To Commercially Available Cooling Lubricants":"Yes; incl. diesel and oil droplets in the air","At Rated Output Voltage For Rated Value Of The Output Current Typical":"83 W","Number Of Parallel-Switched Equipment Resources For Increasing The Power":"2","Ambient Condition Relating To Ambient Temperature - Air Pressure - Installation Altitude":"In case of operation at altitudes of 2000 - 6000 m above sea level: Output power derating of -7.5 %/1000 m or reduction of the ambient temperature by 5 K/1000 m","Buffering Time For Rated Value Of The Output Current In The Event Of Power Failure Minimum":"15 ms","Relative Control Precision Of The Output Voltage With Rapid Fluctuation Of The Input Voltage By +/- 15% Typical":"1 %","product conformity of the coating Qualification and Performance of Electrical Insulating Compound for Printed Board Assemblies according to IPC-CC-830A":"Yes; Conformal Coating, Class A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$652.78","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2421e5ca65c85e52a126a6e98e30d906.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=132965&mlfb=6AG1437-3BA10-7AA0"},"ai":{"faq":[{"question":"What clearance is required around this power supply for proper cooling?","answer":"Maintain 50 mm free space above and below the unit. No side clearance is needed — left and right clearances are both 0 mm."},{"question":"What compliance documentation does this power supply carry?","answer":"It bears CE marking, meets EN 55022 Class B for emissions, and EN 61000-6-2 for immunity. Isolation is SELV per EN 60950-1 and EN 50178."},{"question":"What is the output voltage range?","answer":"The output is adjustable from 24 V to 28.8 V DC via the built-in potentiometer."},{"question":"What input supply does it require?","answer":"It accepts a three-phase input of 400–500 V AC at 47 to 63 Hz. For branch-circuit protection, use a 3-pole miniature circuit breaker 10–16 A characteristic C or a Siemens 3RV breaker set to 3 A."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6AG1437-3BA10-7AA0","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/6AG1437-3BA10-7AA0 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}}