{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6EP1961-2BA41","brand":"Siemens","brandSlug":"siemens","productSlug":"6EP1961-2BA41","canonicalUrl":"https://aoctrl.com/siemens/6EP1961-2BA41","factsUrl":"https://aoctrl.com/api/mcp/products/6EP1961-2BA41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SITOP buffer module, 6EP1961-2BA41, 4 outputs, 22-30 VDC input, 99% efficiency, DIN rail EN 60715 mount, IP20.","salesMarkdown":"The Siemens 6EP1961-2BA41 is a SITOP buffer module that bridges brief mains dips by delivering a controlled DC voltage at its four outputs, calculated as Vin minus approximately 0.2 V. It accepts a 22 to 30 V DC input and holds the output stable during interruptions, switching off after roughly 5 seconds at 1.0 to 1.5 times the set current, or after a typical 100 ms under a current limitation of 1.5 times the set value. This makes it a fit for keeping control logic or DC bus-powered devices alive through short supply glitches. Snaps onto DIN rail EN 60715 35x7.5/15, occupying a 72 mm wide enclosure that stands 80 mm tall and 72 mm deep. Input side uses screw terminals accepting 0.5 to 16 mm² for the +24 V and 0.5 to 4 mm² for the 0 V return; each of the four outputs gets its own screw terminal for 0.5 to 4 mm². A separate screw terminal handles the signaling contact, and another handles the remote reset input.","metaTitle":"Siemens 6EP1961-2BA41 Buffer Module, 4 Outputs, 22-30 VDC, D","metaDescription":"Siemens 6EP1961-2BA41 buffer module, 4 outputs, 22-30 VDC input, 99% efficiency, DIN rail mount. UL recognized, DNV GL approved. Active production.","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","title":"6EP1961-2BA41","Bottom":"50 mm","DNV GL":"Yes","At Input":"+24 V: 2 screw terminals for 0.5 ... 16 mm²; 0 V: 2 screw terminals for 0.5 ... 4 mm²","At Output":"Output 1 ... 4: 1 screw terminal each for 0.5 ... 4 mm²","CE marking":"Yes","UL approval":"Yes; UL-Recognized (UL 2367) File E328600; cULus-Listed (UL 508, CSA C22.2 No. 107.1) File E197259","description":"SITOP PSE200U 10 A Selectivity module 4-channel input: 24 V DC/40 A output: 24 V DC/4x 10 A Level adjustable 3-10 A with status message for each output *Ex approval no longer available*","EAC approval":"Yes","During Storage":"-40 ... +85 °C","MTBF at 40 °C":"540 979 h","Mounting Height":"180 mm","lifecycle_stage":"current","During Operation":"-25 ... +60 °C; with natural convection","During Transport":"-40 ... +85 °C","Fastening Method":"Snaps onto DIN rail EN 60715 35x7.5/15","Number Of Outputs":"4","Other Information":"Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)","Installation Width":"72 mm","Standard For Safety":"according to EN 60950-1 and EN 50178","input voltage at DC":"22 ... 30 V","protection class IP":"IP20","Efficiency In Percent":"99 %","For Signaling Contact":"1 screw terminal for 0.5 ... 4 mm²","Of The Excess Current":"Iout = 1.0 ...1.5 x set value, switch-off after approx. 5 s","Remote Reset Function":"Non-electrically isolated 24 V input (signal level \"high\" at > 15 V)","Shipbuilding Approval":"DNV GL, ABS","Depth Of The Enclosure":"72 mm","For Auxiliary Contacts":"Remote reset: 1 screw terminal for 0.5 ... 4 mm²","Mechanical Accessories":"Device identification label 20 mm × 7 mm, TI-grey 3RT2900-1SB20","Width Of The Enclosure":"72 mm","Height Of The Enclosure":"80 mm","Voltage Curve At Output":"controlled DC voltage","For Emitted Interference":"EN 55022 Class B","For Interference Immunity":"EN 61000-6-2","Of The Current Limitation":"Iout = 1.5 x set value, switch-off after typ. 100 ms","Formula For Output Voltage":"Vin - approx. 0.2 V","Type Of Outputs Connection":"Simultaneous connection of all outputs after power up of the supply voltage > 20 V, delay time of 25 ms, 100 ms or adjustable \"load optimised\" via DIP switch for sequential connection","Of The Immediate Switch-Off":"Iout > set value and Vin < 20 V, switch-off after approx. 0.5 ms","Fuse Protection Type At Input":"15 A per output (not accessible)","Type Of Electrical Connection":"screw-type terminals","Type Of Response Value Setting":"via potentiometer","Overvoltage Overload Capability":"35 V","Type Of The Power Supply Network":"Controlled DC voltage","supply voltage at DC rated value":"24 V","Operating Resource Protection Class":"Class III","Display Version For Normal Operation":"Three-color LED per output: green LED for \"Output switched through\"; yellow LED for \"Output switched off manually\"; red LED for \"Output switched off due to overcurrent\"","Residual Current At Switch-Off Typical":"1 mA","American Bureau of Shipping Europe Ltd. (ABS)":"Yes","Product Feature Parallel Switching Of Outputs":"No","environmental category according to IEC 60721":"climate class 3K3, 5 … 95% without condensation","Design Of The Reset Device/Resetting Mechanism":"via sensor per output","Relative Overall Tolerance Of The Voltage Note":"In accordance with the supplying input voltage","output current up to 60 °C per output rated value":"10 A","input current at rated input voltage 24 V rated value":"40 A","Design Of The Switching Contact For Signaling Function":"Status signal output (pulse/pause signal, can be evaluated via Simatic function block)","Galvanic Isolation Between Input And Output At Switch-Off":"No","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"3 ... 10 A","power loss [W] at rated output voltage for rated value of the output current typical":"10 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$95.25","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/b542341690ec9fc87011522e9cd39295.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=139270&mlfb=6EP1961-2BA41"},"ai":{"faq":[{"question":"What compliance documentation does this module carry?","answer":"It carries CE marking, UL recognition (UL 2367), cULus listing (UL 508, CSA C22.2 No. 107.1), EAC approval, and shipbuilding approvals from DNV GL and ABS. Safety design follows EN 60950-1 and EN 50178."},{"question":"What is the input voltage range and how does the output behave?","answer":"Input range is 22 to 30 V DC. The output is a controlled DC voltage equal to Vin minus approximately 0.2 V. Overcurrent protection trips after roughly 5 seconds at 1.0 to 1.5 times set current, and a fast current limitation shuts down after typical 100 ms at 1.5 times set value."},{"question":"Can this module be used in marine or shipboard applications?","answer":"Yes, it holds DNV GL and ABS shipbuilding approvals, making it suitable for marine panel installations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6EP1961-2BA41","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/6EP1961-2BA41 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}}