{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3448-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3448-6","canonicalUrl":"https://aoctrl.com/siemens/5SM3448-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3448-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM3448-6 RCCB, 4-pole, Type A, rated current 100 A, trip sensitivity 100 mA, Un AC 400 V, 50 Hz, DIN-rail mount, instantaneous design.","salesMarkdown":"The Siemens 5SM3448-6 is a SENTRON residual current operated circuit breaker (RCCB) — 4-pole, Type A, rated 100 A at 400 V AC, 50 Hz, with a 100 mA trip threshold. It's an instantaneous (short-time-delay-free) device meant for standard distribution boards where you need ground-fault protection on a 4-wire system. The 100 mA sensitivity suits circuits feeding equipment where a 30 mA device would nuisance-trip — think sub-mains, large fixed machinery, or distribution sub-panels in commercial or industrial buildings. The 100 A continuous rating (at AC, resistive load) means this RCCB can carry the full current of a heavy sub-feed or large fixed load. The 100 mA residual sensitivity is a deliberate choice — it's above the 30 mA threshold for personal shock protection, so it's used where the goal is equipment and fire protection on circuits with higher natural leakage (long cable runs, heaters, drives). The 1 kA rating per EN 60898 is a coordination figure for domestic-type MCBs upstream — the RCCB is expected to see only limited fault current in that scenario. Supply can come from top or bottom — no orientation restriction. IP20 with conductors connected, so it's intended for enclosed distribution boards, not open washdown areas. Silicon-free construction matters if this panel is in a coating or painting environment where silicone outgassing could cause adhesion failures.","metaTitle":"Siemens 5SM3448-6 SENTRON RCCB, 4-pole Type A, 100 A, 100 mA","metaDescription":"Siemens 5SM3448-6 SENTRON RCCB, 4-pole, Type A, 100 A rated current, 100 mA trip sensitivity, 400 V AC, 50 Hz. Active production, DIN-rail mount. Request a quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"77 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","Maximum Permissible":"75 °C","Minimum Permissible":"-40 °C","Operating Frequency":"50 Hz","Product Designation":"RCCB","at AC / rated value":"100 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":"A","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"1 kA","For Testing Equipment / Minimum":"195 V","Position / Of Power Supply Cord":"top or bottom","Tripping Fault Current / Rated Value":"100 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Current Resistance / Rated Value":"1 kA","according to IEC 61008-1 / rated value":"1 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":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=98839&mlfb=5SM3448-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3448-6/alternatives.json"},"ai":{"faq":[{"question":"How do I get pricing and availability for 5SM3448-6?","answer":"Submit an RFQ through this listing. We source the part through independent distribution; current pricing and stock levels are confirmed at quote time."},{"question":"What compliance documentation does Siemens provide for 5SM3448-6?","answer":"The RCCB is designed and tested to IEC 61008-1 and EN 60898, with a 10 kA SCCR per IEC 61008-1 and 1 kA per EN 60898. It carries an overvoltage category III rating. For specific RoHS, REACH, or UL documentation, contact our sales desk with the RFQ — we can provide the manufacturer's declaration upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3448-6","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/5SM3448-6 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}}