{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV4346-0LA","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV4346-0LA","canonicalUrl":"https://aoctrl.com/siemens/5SV4346-0LA","factsUrl":"https://aoctrl.com/api/mcp/products/5SV4346-0LA","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCCB, 4-pole, 63 A, 30 mA, Type AC, instantaneous, 10 kA SCCR, DIN rail mount, IP20.","salesMarkdown":"## What this RCCB does for your distribution board The Siemens 5SV4346-0LA is a SENTRON residual-current circuit breaker (RCCB) — 4 poles, rated 63 A continuous, tripping on a 30 mA residual current of Type AC (sinusoidal AC faults only). The instantaneous (non-time-delayed) characteristic means it clears a fault within tens of milliseconds — no intentional delay for selectivity with downstream devices. ## Ratings that matter for coordination Short-circuit withstand: 10 kA per the product rating, and 0.8 kA when tested to EN 60898 or IEC 61008-1. The 10 kA figure governs the upstream breaker's interrupting capacity needed to protect this RCCB; the 0.8 kA is the conditional rated short-circuit current with the specified backup fuse/MCB. Thermal derating is flat at 63 A from 40 °C through 60 °C. At 65 °C it drops to 57.35 A; at 70 °C to 48.8 A. If the enclosure ambient runs hot — say, a packed panel near a drive cabinet — size the continuous load against the 65 °C or 70 °C column, not the 40 °C number. IP20 with conductors connected and the distribution board installed. That is touch-finger protection only — no washdown rating. Mount inside a cabinet with a door; this is not a standalone outdoor device. Silicon-free construction matters for automotive paint-shop or semiconductor fab panels where silicone outgassing causes adhesion or contact failures. ## Panel fit — DIN rail footprint Four-pole RCCB in a 72 mm wide body (4 MW), 70 mm deep, 90 mm tall. Snaps onto any 35 mm DIN rail.","metaTitle":"Siemens 5SV4346-0LA SENTRON RCCB, 4P, 63A, 30mA, Type AC","metaDescription":"Siemens 5SV4346-0LA SENTRON 4-pole RCCB, 63A rated, 30mA trip, Type AC, 10kA SCCR, IP20. Active production. Sourced 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","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","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Operating Frequency":"50 Hz","Product Designation":"RCCB","at AC / rated value":"63 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":"110 000 A²·s","at 40 °C / rated value":"63 A","at 45 °C / rated value":"63 A","at 50 °C / rated value":"63 A","at 55 °C / rated value":"63 A","at 60 °C / rated value":"63 A","at 65 °C / rated value":"57.35 A","at 70 °C / rated value":"48.8 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":"195 V","Position / Of Power Supply Cord":"top or bottom","Let-Through Current / Permissible":"7 100 kA","Tripping Fault Current / Rated Value":"30 mA","Supply Voltage Frequency / Rated Value":"50 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":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=555554&mlfb=5SV4346-0LA","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV4346-0LA/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SV4346-0LA used for?","answer":"It is a 4-pole residual-current circuit breaker (RCCB) for 50 Hz AC systems, rated 63 A with 30 mA trip sensitivity. It protects against earth faults in final circuits — typically in residential, commercial, or light industrial distribution boards."},{"question":"Where can I buy the 5SV4346-0LA?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV4346-0LA","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/5SV4346-0LA 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}}