{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV4344-0MB","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV4344-0MB","canonicalUrl":"https://aoctrl.com/siemens/5SV4344-0MB","factsUrl":"https://aoctrl.com/api/mcp/products/5SV4344-0MB","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCCB, 5SV4344-0MB, 4-pole, 40 A, 30 mA, Type AC, instantaneous, DIN rail mount.","salesMarkdown":"It sits on a DIN rail (REG), occupies 4 modular width units, and carries a 10 kA short-circuit current rating (SCCR) per IEC 61008-1 and EN 60898. Rated 40 A at 40 °C ambient; at 45 °C it derates to 38.1 A, at 50 °C to 35.59 A, at 55 °C to 32.29 A, at 60 °C to 28.19 A, at 65 °C to 23.3 A, and at 70 °C to 17.6 A.","metaTitle":"Siemens SENTRON 5SV4344-0MB RCCB, 40 A, 30 mA, Type AC, 4-Po","metaDescription":"Siemens SENTRON 5SV4344-0MB RCCB, 40 A rated, 30 mA trip, Type AC, 4-pole, 10 kA SCCR, DIN rail mount. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"72 mm","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Operating Frequency":"60 Hz","Product Designation":"RCCB","at AC / rated value":"40 A","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Residual Current Type":"AC","I2t value / permissible":"58 000 A²·s","at 40 °C / rated value":"40 A","at 45 °C / rated value":"38.1 A","at 50 °C / rated value":"35.59 A","at 55 °C / rated value":"32.29 A","at 60 °C / rated value":"28.19 A","at 65 °C / rated value":"23.3 A","at 70 °C / rated value":"17.6 A","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"0.8 kA","For Testing Equipment / Minimum":"100 V","Position / Of Power Supply Cord":"top or bottom","Let-Through Current / Permissible":"5 200 kA","Tripping Fault Current / Rated Value":"30 mA","Supply Voltage Frequency / Rated Value":"60 Hz","according to IEC 61008-1 / rated value":"0.8 kA","Switching Function / Short-Term Delayed":"No","size of installation devices / acc. to DIN 43880":"1","Mechanical Service Life (Switching Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$29.21","priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/123f84553a8a3025eba30e82a74cf0e1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=906809&mlfb=5SV4344-0MB","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV4344-0MB/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 5SV4344-0MB?","answer":"The depth is 70 mm, matching the installation depth."},{"question":"What is the width of 5SV4344-0MB?","answer":"The width is 72 mm, which corresponds to 4 modular width units on a DIN rail."},{"question":"Where can I buy 5SV4344-0MB?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV4344-0MB","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/5SV4344-0MB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}