{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3344-3","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3344-3","canonicalUrl":"https://aoctrl.com/siemens/5SV3344-3","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3344-3","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCCB, 4-pole, type F, short-time delayed, In: 40 A, 30 mA, Un AC: 400 V, DIN rail mount, IP20, 10 kA SCCR.","salesMarkdown":"## What it is and what the ratings mean The Siemens 5SV3344-3 is a 4-pole residual current operated circuit breaker (RCCB) from the SENTRON series, type F, short-time delayed, rated 40 A with a 30 mA residual operating current on a 400 V AC supply. The 30 mA sensitivity means it detects earth leakage down to that threshold — standard for personal protection against direct contact in IEC 60364 installations. The short-time delayed design (type F) handles pulsed DC and mixed-frequency residual currents common in modern loads with VFDs or power electronics, so it won't nuisance-trip on inverter-fed equipment like pumps or conveyors. Rated short-circuit capacity is 10 kA per IEC 61008-1, which means it can safely interrupt a fault current up to that level without welding contacts or cascading failure upstream. The 4-pole construction switches all three phases plus neutral, making it suitable for three-phase four-wire systems (TN-S, TT) where the neutral must be disconnected with the phases. ## Where it goes and how it mounts Snaps onto a standard 35 mm DIN rail (REG) and occupies 4 modular width units (72 mm wide, 60 mm grid spacing). Mounting position is any orientation, which simplifies panel layout. The 70 mm installation depth matches standard distribution board cutouts. Supply can enter from top or bottom, so you don't need to flip the busbar arrangement when retrofitting into an existing panel. IP20 rating applies when installed in a distribution board with connected conductors — standard for enclosed panels. Overvoltage category III means it's rated for fixed installation downstream of the main distribution board, not for point-of-use equipment. Silicon-free construction avoids outgassing issues in sensitive environments like coating or electronics assembly lines.","metaTitle":"Siemens 5SV3344-3 SENTRON RCCB, 4P, 40A, 30mA, Type F, 400V","metaDescription":"Siemens 5SV3344-3 SENTRON RCCB, 4-pole, type F, short-time delayed, 40 A, 30 mA, 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 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","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":"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/2f9e83eb169179ddd4428d6075f216bf.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=604174&mlfb=5SV3344-3","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV3344-3/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SV3344-3 and how do I get a price?","answer":"The 5SV3344-3 is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is 5SV3344-3's listed depth?","answer":"The 5SV3344-3 has an installation depth of 70 mm."},{"question":"What is 5SV3344-3's listed width?","answer":"The 5SV3344-3 is 72 mm wide, occupying 4 modular width units on a 60 mm grid."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3344-3","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/5SV3344-3 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}}