{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM3352-6","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM3352-6","canonicalUrl":"https://aoctrl.com/siemens/5SM3352-6","factsUrl":"https://aoctrl.com/api/mcp/products/5SM3352-6","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SM3 series RCCB, 4-pole, Type A, 25 A rated, 500 V AC, 10 kA short-circuit current rating, 50 Hz, DIN rail mount.","salesMarkdown":"The Siemens 5SM3352-6 is a 4-pole residual current circuit breaker (RCCB) from the SENTRON 5SM3 series, designed for 50 Hz systems. It carries a 25 A rated current at 500 V AC and a 10 kA short-circuit current rating, so it safely interrupts fault currents up to that level without cascading damage upstream in the distribution board. This is a Type A RCCB — it detects sinusoidal AC residual currents plus pulsating DC residual currents, which covers modern loads with half-wave rectification (switched-mode power supplies, variable-speed drives, LED drivers). The instantaneous design means no intentional time delay; it trips within the natural response time of the sensing coil. Snaps onto a DIN rail (REG profile) and occupies 4 width units (36 mm wide, 90 mm tall, 70 mm deep). The supply can enter from top or bottom, which simplifies busbar routing in a crowded enclosure. The 25 A rating holds at 40 °C and 45 °C. Above that, derate linearly: 24 A at 50 °C, 23 A at 55 °C, 22 A at 60 °C, 21 A at 65 °C, 20 A at 70 °C. Ambient operating range is -25 °C to 45 °C (maximum 75 °C, minimum -40 °C for storage).","metaTitle":"Siemens 5SM3352-6 SENTRON RCCB, 25A 4P Type A, 10kA","metaDescription":"Siemens 5SM3352-6 SENTRON 5SM3 RCCB, 25A rated, 4-pole, Type A, 10kA SCCR, 50Hz. Active production. 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","at 40 Cel":"25 A","at 45 Cel":"25 A","at 50 Cel":"24 A","at 55 Cel":"23 A","at 60 Cel":"22 A","at 65 Cel":"21 A","at 70 Cel":"20 A","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":"50Hz","Product designation":"RCCB","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","at AC / rated value":"500 V","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","circuit-breaker / Design":"5SM3","Short-circuit current rating":"10 kA","Current / at AC / rated value":"25 A","Product feature / silicon-free":"Yes","For Testing Equipment / Minimum":"195 V","Position / of power supply cord":"top or bottom","Protection against electrical shock":"Finger and back-of-hand safe","Surge current resistance / rated value":"1 kA","Switching function / short-term delayed":"No","Tripping residual current / rated value":"30 mA","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=395325&mlfb=5SM3352-6","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SM3352-6/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SM3352-6 and what is the lead time?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm lead-time commitment."},{"question":"What is the difference between 5SM3352-6 and 5SY4310-7CV?","answer":"The 5SM3352-6 is a 4-pole Type A RCCB (residual current only) at 25 A, while the 5SY4310-7CV is a 4-pole MCB (overcurrent and short-circuit protection only) at 10 kA breaking capacity. They serve different protection functions — an RCCB detects earth leakage; an MCB detects overload and short-circuit. They are not drop-in substitutes; a complete distribution board typically uses both in series."},{"question":"What compliance documentation does Siemens provide for 5SM3352-6?","answer":"The part carries designations per DIN EN 61346-2 and DIN EN 81346-2 (function letter F). It is silicon-free and finger-and-back-of-hand safe per the protection-against-electrical-shock feature. Specific RoHS/REACH/UL/IEC declarations are available from the manufacturer upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM3352-6","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/5SM3352-6 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}}