{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3354-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3354-6","canonicalUrl":"https://aoctrl.com/siemens/5SM3354-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3354-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCCB, Type A, instantaneous, 4-pole, 40 A at 40 °C, 500 V AC, 10 kA SCCR, DIN rail mount.","salesMarkdown":"The Siemens SENTRON 5SM3354-6 is a 4-pole residual current circuit breaker (RCCB) with Type A fault current detection, rated 40 A at 40 °C and 45 °C, and 500 V AC supply voltage. Type A means it detects sinusoidal AC residual currents plus pulsating DC residual currents up to 6 mA — the standard choice for circuits with single-phase rectifiers, switched-mode power supplies, or electronic loads that generate pulsed DC fault currents. The 0.8 kA rating per EN 60898 and IEC 61008-1 is the conditional short-circuit capacity with the specified backup fuse — a lower number that governs coordination with the upstream protective device. The IP20 rating applies only when the distribution board is installed with connected conductors; this is normal for panel-mounted devices and means no special ingress protection is needed inside the enclosure. Above that, derate linearly: 38.4 A at 50 °C, 36.8 A at 55 °C, 35.2 A at 60 °C, 33.6 A at 65 °C, and 32 A at 70 °C. Supply connection can enter from top or bottom — no mandatory feed direction. The device is finger and back-of-hand safe per the protection-against-electrical-shock spec, so live terminals are shielded during maintenance. Silicon-free construction (marked yes) matters for automotive or paint-shop environments where silicone outgassing can cause adhesion failures.","metaTitle":"Siemens SENTRON 5SM3354-6 RCCB, Type A, 40 A, 4-Pole, 10 kA","metaDescription":"Siemens SENTRON 5SM3354-6 RCCB, 40 A rated, 4-pole, Type A, 10 kA SCCR, 500 V AC. DIN rail mount. Current lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Depth":"70 mm","Width":"36 mm","Height":"90 mm","Maximum":"45 °C","Minimum":"-25 °C","Rated Value":"50 Hz","Mounting Type":"DIN rail (REG)","Number Of Poles":"4","lifecycle_stage":"current","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","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Instantaneous","Number Of Width Units":"4","Type Of Fault Current":"A","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","I2t value / permissible":"70 000 A²·s","at 40 °C / rated value":"40 A","at 45 °C / rated value":"40 A","at 50 °C / rated value":"38.4 A","at 55 °C / rated value":"36.8 A","at 60 °C / rated value":"35.2 A","at 65 °C / rated value":"33.6 A","at 70 °C / rated value":"32 A","Short-Circuit Current Rating":"10 kA","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"0.8 kA","Position / Of Power Supply Cord":"top or bottom","Let-Through Current / Permissible":"7 500 kA","Protection Against Electrical Shock":"Finger and back-of-hand safe","supply voltage / at AC / rated value":"500 V","Surge Current Resistance / Rated Value":"1 kA","according to IEC 61008-1 / rated value":"0.8 kA","Switching Function / Short-Term Delayed":"No","Tripping Residual Current / Rated Value":"30 mA","operating current / at AC / rated value":"40 A","Supply Voltage / For Testing Equipment / Minimum":"195 V","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=79555&mlfb=5SM3354-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3354-6/alternatives.json"},"ai":{"faq":[{"question":"Will 5SM3354-6 drop into a panel specified around 5SY4304-7CV without rewiring?","answer":"Both are 4-pole DIN-rail RCCBs with the same 36 mm width (4 width units) and 70 mm depth, so the mechanical fit is identical. Electrical substitution depends on the 5SY4304-7CV's ratings — if it is also Type A and 40 A, it is a drop-in; if not, the 5SM3354-6 may require upstream coordination changes."},{"question":"How do I get current pricing and availability for 5SM3354-6?","answer":"Submit an RFQ through this listing. We source this active SENTRON part to order through independent distribution; current pricing and stock levels are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3354-6","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/5SM3354-6 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}}