{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV4344-0","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV4344-0","canonicalUrl":"https://aoctrl.com/siemens/5SV4344-0","factsUrl":"https://aoctrl.com/api/mcp/products/5SV4344-0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV4344-0, 4-pole Type AC residual current circuit breaker (RCCB), In 40 A, IΔn 30 mA, Un 400 V AC, 10 kA rated short-circuit capacity, DIN-rail mount.","salesMarkdown":"The Siemens 5SV4344-0 is a SENTRON 4-pole residual current circuit breaker (RCCB), Type AC, rated 40 A with 30 mA sensitivity at 400 V AC. That's standard for a domestic or small commercial DB fed from a transformer of similar rating. ## DIN-rail fit and panel integration Overall dimensions are 72 mm wide × 90 mm high × 70 mm deep — the depth matches the standard installation depth, so it sits flush with the front of a typical distribution board without protruding into the cable duct. Mounting position is unrestricted, and supply can enter from top or bottom, which simplifies busbar and cable routing in a crowded enclosure.","metaTitle":"Siemens 5SV4344-0 SENTRON RCCB, 4P Type AC, 40A 30mA 400V","metaDescription":"Siemens 5SV4344-0 SENTRON RCCB, 4-pole Type AC, 40 A rated current, 30 mA sensitivity, 400 V AC, 10 kA SCCR. Active production. Quoted to order against RFQ.","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 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":"80 A","for rated value of the current at AC in hot operating state per pole":"3.9 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=356336&mlfb=5SV4344-0","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV4344-0/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SV4344-0 used for?","answer":"It's a 4-pole Type AC residual current circuit breaker (RCCB) rated 40 A / 30 mA / 400 V AC, used for earth-fault protection in residential and light commercial distribution boards. The 30 mA sensitivity provides personal shock protection; the 10 kA SCCR handles fault currents typical of domestic supply."},{"question":"Where can I buy the 5SV4344-0?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock figures or lead-time numbers are published here."},{"question":"Will the 5SV4344-0 drop into a panel specified around a 5SL4363-7 miniature circuit breaker?","answer":"Not without rewiring — the 5SV4344-0 is a 4-pole RCCB (72 mm wide, 4 MW), while the 5SL4363-7 is a 3-pole MCB (54 mm wide, 3 MW). They share the same 90 mm height and 70 mm installation depth, but the RCCB occupies one extra width unit and serves a different protection function (residual current vs. overcurrent). A panel designed for the MCB would need a wider DIN-rail slot and separate overcurrent protection upstream or downstream of the RCCB."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV4344-0","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/5SV4344-0 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}}