{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3344-4","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3344-4","canonicalUrl":"https://aoctrl.com/siemens/5SV3344-4","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3344-4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV3344-4, 4-pole Type B RCCB, short-time delayed, In 40 A, IΔn 30 mA, Un AC 400 V, 10 kA SCCR, DIN rail mount.","salesMarkdown":"The Siemens SENTRON 5SV3344-4 is a 4-pole Type B residual current operated circuit breaker (RCCB) rated 40 A with 30 mA sensitivity on a 400 V AC supply. Type B detection handles AC, pulsating DC, and smooth DC fault currents — the right choice for drives, UPS systems, and PV inverters where Type A won't catch a pure DC fault. Short-time delayed (S-type) design gives it selectivity upstream of downstream RCCBs, so a ground fault on a branch trips the branch device first, not this main protector. Rated short-circuit current withstand is 10 kA per IEC 61008-1. The 4-pole form factor handles three-phase plus neutral, common for 400 V three-phase main incomers or sub-distribution. Depth is 70 mm, matching the standard SENTRON RCCB/MCB footprint — no extra clearance needed behind the DIN rail. Mounting position is unrestricted, so it can go sideways or upside-down in a tight gland plate layout without derating. IP20 with conductors connected; keep it inside a distribution board or enclosed panel. The SIGRES function (switched-off state power supply) works from either direction, which simplifies busbar routing in a multi-row panel. Silicon-free construction avoids outgassing issues around sensitive contacts or electronics.","metaTitle":"Siemens 5SV3344-4 SENTRON RCCB, Type B, 40 A, 30 mA, 4-pole","metaDescription":"Siemens 5SV3344-4 SENTRON RCCB, 4-pole Type B, 40 A rated, 30 mA sensitivity, 400 V AC, short-time delayed, 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":"SIGRES","Product Designation":"RCCB","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Short-time delayed","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 (top for SIGRES function also in switched-off state)","according to IEC 61008-1 rated value":"0.8 kA","Switching Function Short-Term Delayed":"Yes","Value Range Of The Operating Frequency":"50/60 Hz","value range of the supply voltage at AC":"70-440 V","Ambient Temperature During Storage Minimum":"-40 °C","Value Range Of The Supply Voltage Frequency":"50/60 Hz","Supply Voltage For Testing Equipment Minimum":"70 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":"2.5 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/2f9e83eb169179ddd4428d6075f216bf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=810544&mlfb=5SV3344-4","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV3344-4/alternatives.json"},"ai":{"faq":[{"question":"What is 5SV3344-4's depth and width?","answer":"Depth is 70 mm, width is 72 mm (4 modular units)."},{"question":"Where can I buy 5SV3344-4?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for 5SV3344-4?","answer":"The part carries IEC 61008-1 certification for residual current devices. Standard Siemens declarations for RoHS, REACH, and CE marking are available on request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3344-4","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/5SV3344-4 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}}