{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"6EP1935-6MC01","brand":"Siemens","brandSlug":"siemens","productSlug":"6EP1935-6MC01","canonicalUrl":"https://aoctrl.com/siemens/6EP1935-6MC01","factsUrl":"https://aoctrl.com/api/mcp/products/6EP1935-6MC01","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SITOP battery module 6EP1935-6MC01, 12-cell lead-acid, 1.2 Ah, DIN rail mount, UL/CE/DNV GL.","salesMarkdown":"## Battery Module for Buffered DC Supplies The Siemens 6EP1935-6MC01 is a 12-cell lead-acid battery module rated at 1.2 A·h, designed to buffer a 24 VDC power supply during line dips or short interruptions. It snaps onto a DIN rail EN 60715 35x7.5/15 or mounts via keyhole slots for M4 screws — no S7 rail compatibility, so plan for standard profile rail in the panel. Capacity derates with temperature: at 20 °C typical hold time is 4 a, dropping to 2 a at 30 °C, 1 a at 40 °C, and 0.5 a at 50 °C. That 1 a at 40 °C is the number to use if the enclosure runs warm — the 20 °C figure is a best-case for a cool cabinet. Enclosure dimensions are 106 mm high, 96 mm wide, 108 mm deep — fits a standard 4-module-wide DIN-rail footprint. The screw terminals accept 0.08 to 2.5 mm² for the +BAT and -BAT connections; strip length per typical practice is 8 mm for a clean clamp. IP00 rating means no ingress protection — mount inside a closed cabinet, not in a washdown or dust-exposed area. The accessory pack includes a solid-state circuitry fuse rated at 7.5 A. ## Charge Voltage and Temperature Compensation The recommended charging voltage varies with ambient temperature to prevent over- or under-charging the lead-acid cells. At -10 °C the setpoint is 29 V; at 0 °C it is 28.4 V; at 10 °C it is 27.8 V; at 20 °C it is 27.3 V; at 30 °C it is 26.8 V; at 40 °C it is 26.6 V; at 50 °C it is 26.3 V. Maximum charging current is 0.3 A — the power supply driving this module must be current-limited to that value. Per the operating data note, DIN/VDE regulations (VDE 0510 Part 2 / EN 50272-2) apply for storage, mounting, and operation. The battery site must be ventilated, and ignition sources kept at least 50 cm away. ## Approvals and Lifecycle Status Typical capacity falls to 80 % of original capacity per EUROBAT guidelines — expect gradual fade over service life, not a sudden drop. The storage temperature range is -20 to +50 °C; operating range is -15 to +50 °C.","metaTitle":"Siemens 6EP1935-6MC01 Battery Module, 1.2Ah, 12-Cell, DIN Ra","metaDescription":"Siemens 6EP1935-6MC01 lead-acid battery module, 1.2Ah, 12 cells, DIN rail mount. UL, CE, DNV GL approved. Current lifecycle. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["DIN Rail Power Supplies"],"specifications":{"ATEX":"No","title":"6EP1935-6MC01","DNV GL":"Yes","Typical":"capacity falls to 80 % of original capacity (according to EUROBAT)","CE marking":"Yes","UL approval":"Yes","description":"SITOP battery module 24 V/1.2 Ah with maintenance-free sealed lead batteries for SITOP DC UPS module 6 A *Ex approval no longer available*","EAC approval":"Yes","Wall Mounting":"Yes","During Storage":"-20 ... +50 °C","Mounting Height":"126 mm","Number Of Cells":"12","lifecycle_stage":"current","Battery Capacity":"1.2 A·h","During Operation":"-15 ... +50 °C","During Transport":"-20 ... +50 °C","Fastening Method":"snaps onto DIN rail EN 60715 35x7.5/15 or keyhole mounting for hooking in to M4 screws","S7 rail mounting":"No","Other Information":"Specifications at rated input voltage and ambient temperature +25 °C (unless otherwise specified)","at 20 °C typical":"4 a","at 30 °C typical":"2 a","at 40 °C typical":"1 a","at 50 °C typical":"0.5 a","Installation Width":"116 mm","Operating data note":"For storage, mounting and operation of lead-acid batteries, the relevant DIN/VDE regulations or country-specific regulations (e.g. VDE 0510 Part 2/EN 50272-2) must be observed. You must ensure that the battery site is sufficiently ventilated. Possible sources of ignition must be at least 50 cm away.","as approval for USA":"cURus-Recognized (UL 1778, CSA C22.2 No. 107.1), File E219627","protection class IP":"IP00","at 0 °C recommended":"28.4 V","For Power Supply Unit":"1 screw terminal each for 0.08 ... 2.5 mm² for + BAT and - BAT","Shipbuilding Approval":"ABS, DNV GL","at 10 °C recommended":"27.8 V","at 20 °C recommended":"27.3 V","at 30 °C recommended":"26.8 V","at 40 °C recommended":"26.6 V","at 50 °C recommended":"26.3 V","Depth Of The Enclosure":"108 mm","Standard Rail Mounting":"Yes","Width Of The Enclosure":"96 mm","at -10 °C recommended":"29 V","Height Of The Enclosure":"106 mm","Charging Current Maximum":"0.3 A","Product Component Included":"Accessories pack with solid-state circuitry fuse 7.5 A","cCSAus, Class 1, Division 2":"No","Type Of Electrical Connection":"spring-loaded terminals","output voltage at DC rated value":"24 V","Design Of The Overload Protection":"Valve control","Ambient Temperature During Storage":"Along with the storage and operating temperature, other factors such as the duration of the storage period and the charge status during storage have a decisive influence on the possible useful life. Batteries should therefore be stored as briefly as possible, always fully charged, and within the temperature range 0 to +20 °C.","Design Of Short-Circuit Protection":"Battery fuse 7.5 A/32 V (solid-state circuitry blade-type fuse + support)","Operating Resource Protection Class":"Class III","American Bureau of Shipping Europe Ltd. (ABS)":"Yes","relative temporary capacity loss at 20 °C in a month typical":"3 %"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$90.17 – $267.16","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f4fd146d097e4f6cd7ecbef89afc5ddd.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=197057&mlfb=6EP1935-6MC01"},"ai":{"faq":[{"question":"What approvals does 6EP1935-6MC01 carry?","answer":"CE marking, UL (cURus-Recognized per UL 1778, CSA C22.2 No. 107.1), EAC, and DNV GL marine approval (ABS also listed). No ATEX certification."},{"question":"Where can I buy 6EP1935-6MC01?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the maximum charging current for 6EP1935-6MC01?","answer":"Maximum charging current is 0.3 A. The power supply feeding this module must be current-limited to that value to avoid overcharging the 12-cell lead-acid stack."},{"question":"Does 6EP1935-6MC01 have ATEX certification?","answer":"No, ATEX is listed as No — this module is not certified for explosive atmospheres."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/6EP1935-6MC01","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/6EP1935-6MC01 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}}