{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SV3742-4","brand":"Siemens","brandSlug":"siemens","productSlug":"5SV3742-4","canonicalUrl":"https://aoctrl.com/siemens/5SV3742-4","factsUrl":"https://aoctrl.com/api/mcp/products/5SV3742-4","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SV3742-4, RCCB, Type B, 25 A, 500 mA, 4-pole, short-time delayed, DIN rail.","salesMarkdown":"The Siemens 5SV3742-4 is a SENTRON residual-current circuit breaker (RCCB) rated at 25 A with a 500 mA tripping fault current, 4-pole, Type B, short-time delayed. The Type B detection handles smooth DC, pulsed DC, and AC residual currents, which matters when you've got VFDs, UPS systems, or EV chargers on the circuit — those loads can throw DC fault currents a standard AC/Type A RCCB won't see. Mounts on DIN rail (REG) in any position — no derating for orientation. IP20 with connected conductors and installed distribution board, so it's for indoor panel use only, not washdown. The short-time delayed design (Type S equivalent) means it coordinates with downstream RCCBs to avoid nuisance tripping on transient leakage. Rated short-circuit current 10 kA per IEC 61008-1 and EN 60898 (0.8 kA). Overvoltage category III. Silicon-free construction.","metaTitle":"Siemens 5SV3742-4 SENTRON RCCB, Type B, 25 A, 500 mA, 4-pole","metaDescription":"Siemens 5SV3742-4 SENTRON RCCB, Type B, 25 A rated, 500 mA trip, 4-pole, short-time delayed, 10 kA SCCR, DIN rail. 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","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","Product Designation":"RCCB","at AC / rated value":"25 A","protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage Category":"III","Design Of The Product":"Short-time delayed","Residual Current Type":"B","I2t value / permissible":"41 000 A²·s","at 40 °C / rated value":"25 A","at 45 °C / rated value":"25 A","at 50 °C / rated value":"25 A","at 55 °C / rated value":"25 A","at 60 °C / rated value":"25 A","at 65 °C / rated value":"25 A","at 70 °C / rated value":"25 A","Short-Circuit Current Rating":"10 kA","Number Of Modular Width Units":"4","Product Feature / Silicon-Free":"Yes","acc. to EN 60898 / rated value":"0.8 kA","For Testing Equipment / Minimum":"195 V","Let-Through Current / Permissible":"6 200 kA","Tripping Fault Current / Rated Value":"500 mA","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Current Resistance / Rated Value":"3 kA","according to IEC 61008-1 / rated value":"0.8 kA","Switching Function / Short-Term Delayed":"Yes","size of installation devices / acc. to DIN 43880":"1","Mechanical Service Life (Operating Cycles) / Typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a5428b70392542232233e406e6d777ba.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=810570&mlfb=5SV3742-4","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SV3742-4/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SV3742-4?","answer":"Submit an RFQ through this listing. Pricing and availability are confirmed at quote time against independent distribution channels."},{"question":"What is 5SV3742-4's listed depth and width?","answer":"Depth is 70 mm, width is 72 mm (4 modular width units), height is 90 mm. Fits standard DIN-rail enclosures."},{"question":"What compliance documentation does this brand provide for 5SV3742-4?","answer":"The part carries IEC 61008-1 and EN 60898 ratings, overvoltage category III, IP20, and silicon-free marking. Specific RoHS/REACH declarations are available from the manufacturer; consult your Siemens channel partner for the latest compliance documents."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SV3742-4","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/5SV3742-4 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}}