{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV4344-0LA","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV4344-0LA","canonicalUrl":"https://aoctrl.com/siemens/5SV4344-0LA","factsUrl":"https://aoctrl.com/api/mcp/products/5SV4344-0LA","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV4344-0LA, 4-pole RCCB, Type AC, In: 40 A, 30 mA, Un AC: 400 V, with thermal overload protection.","salesMarkdown":"The Siemens SENTRON 5SV4344-0LA is a 4-pole residual current circuit breaker (RCCB) with thermal overload protection, rated for 40 A at 400 V AC, 50 Hz, with a 30 mA trip sensitivity. The 40 A rated current (In) and 30 mA sensitivity define the load and protection envelope: the RCCB carries up to 40 A of continuous load on its 4 poles, and it disconnects when the residual (earth leakage) current exceeds 30 mA — the threshold for supplementary protection against electric shock in standard IEC 60364 installations. Rated for 400 V AC phase-to-phase (3-phase 4-wire systems), the 4-pole design switches all live conductors including neutral. The 50 Hz operating frequency matches standard European utility grids. Overvoltage category III confirms suitability for fixed-installation distribution boards rather than downstream socket outlets. Installation depth is 70 mm.","metaTitle":"Siemens 5SV4344-0LA SENTRON RCCB, 4P, 40A, 30mA, 400V AC","metaDescription":"Siemens SENTRON 5SV4344-0LA 4-pole RCCB, Type AC, 40 A rated current, 30 mA sensitivity, 400 V AC, 10 kA SCCR. Active production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"72 mm","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","Grid Spacing":"60 mm","Number Of Poles":"4","lifecycle_stage":"current","Fastening Method":"DIN rail (REG)","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Variations":"With thermal overload protection","Product Designation":"RCCB","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Product Feature Silicon-Free":"Yes","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","Position Of Power Supply Cord":"top or bottom","according to IEC 61008-1 rated value":"0.8 kA","Switching Function Short-Term Delayed":"No","Value Range Of The Operating Frequency":"50 Hz","value range of the supply voltage at AC":"400 V","Ambient Temperature During Storage Minimum":"-40 °C","Value Range Of The Supply Voltage Frequency":"50 Hz","Supply Voltage For Testing Equipment Minimum":"195 V","Mechanical Service Life (Operating Cycles) Typical":"10 000","Product Extension Installable Supplementary Devices":"Yes","Short-Circuit Current Of Series Fuse Maximum Permissible":"100 A","for rated value of the current at AC in hot operating state per pole":"1.8 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"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=555546&mlfb=5SV4344-0LA","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV4344-0LA/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the 5SV4344-0LA?","answer":"The 5SV4344-0LA is sourced and quoted to order against an RFQ through independent industrial 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/5SV4344-0LA","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/5SV4344-0LA 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}}