{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV4344-0KL","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV4344-0KL","canonicalUrl":"https://aoctrl.com/siemens/5SV4344-0KL","factsUrl":"https://aoctrl.com/api/mcp/products/5SV4344-0KL","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV4344-0KL, 4-pole RCCB, Type AC, In: 40 A, 30 mA, Un AC: 400 V, N left.","salesMarkdown":"The Siemens SENTRON 5SV4344-0KL is a 4-pole residual current circuit breaker (RCCB), Type AC, rated 40 A with 30 mA sensitivity at 400 V AC, 50 Hz. The N pole is on the left side of the unit. This is an instantaneous-trip device (no intentional short-time delay), designed to disconnect the circuit when leakage current exceeds 30 mA — the threshold for supplementary protection against direct contact in standard residential and commercial installations. The 30 mA sensitivity is the standard for personal protection against electric shock; the 40 A rated current suits it for main or sub-main protection in distribution boards feeding multiple downstream circuits. Mounting position is unrestricted; depth is 70 mm, matching the standard installation depth for SENTRON modular devices. The silicon-free construction is relevant for applications where silicone outgassing could contaminate contacts or optical surfaces. ## Electrical ratings and fault withstand Rated short-circuit current is 10 kA, and the conditional short-circuit current per IEC 61008-1 is 0.8 kA. The maximum permissible series fuse short-circuit current is 80 A — this sets the upstream fuse or MCB rating needed to protect the RCCB under fault conditions.","metaTitle":"Siemens 5SV4344-0KL SENTRON RCCB, 4P, 40 A, 30 mA, 400 V AC","metaDescription":"Siemens SENTRON 5SV4344-0KL 4-pole RCCB, Type AC, rated 40 A, 30 mA sensitivity, 400 V AC. 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","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":"N left","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","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","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=494100&mlfb=5SV4344-0KL","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV4344-0KL/alternatives.json"},"ai":{"faq":[{"question":"What is the 5SV4344-0KL used for?","answer":"It is a 4-pole residual current circuit breaker (RCCB) providing earth leakage protection for 400 V AC, 50 Hz circuits. The 30 mA sensitivity offers supplementary protection against direct contact in residential, commercial, and light industrial distribution boards."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV4344-0KL","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/5SV4344-0KL 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}}