{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1324-7FM20","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1324-7FM20","canonicalUrl":"https://aoctrl.com/siemens/5SU1324-7FM20","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1324-7FM20","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON 5SU1 RCBO, 2-pole, 20 A rated, Type A fault current, 10 kA breaking capacity, 3 MW, IP20.","salesMarkdown":"## Siemens SENTRON 5SU1324-7FM20 RCBO — 20 A, Type A, 10 kA The Siemens SENTRON 5SU1324-7FM20 is a 2-pole RCBO (residual current circuit breaker with overcurrent protection) rated at 20 A with a Type A fault current sensitivity and a 10 kA breaking capacity per EN 60898. It combines overcurrent and residual current protection in a single 3-module-wide unit (54 mm), saving DIN-rail space compared to separate MCB + RCCD pairs. Rated current is 20 A at 30 °C, derating to 18.8 A at 40 °C, 18.2 A at 45 °C, 17.4 A at 50 °C, 16.2 A at 55 °C, and 14.6 A at 70 °C. The thermal curve means a panel running at 50 °C ambient loses about 13 % of the headline rating — factor that into your load schedule if the enclosure runs warm. Type A fault current detection means it trips on pulsating DC residual currents (typical from single-phase rectifiers, switching power supplies, and variable-speed drives) in addition to sinusoidal AC. That makes it the right choice for modern loads with power electronics — a standard Type AC would not catch the pulsating component. The C tripping characteristic (5–10× In magnetic release) suits mixed resistive-inductive loads like small motor circuits, lighting banks, and general distribution where moderate inrush is expected. Instantaneous design (no intentional delay) for fast fault clearing. Three width units (54 mm) — check your rail fill before swapping from a narrower breaker. Not for wet or washdown zones without an enclosure — keep it inside a cabinet. Operating ambient -25 to +55 °C; storage -40 to +75 °C. Halogen-free and silicon-free construction — useful for cleanroom or high-reliability installations where outgassing matters. Overvoltage category III (distribution-level), energy limiting class 3. Lifecycle status is current production.","metaTitle":"Siemens SENTRON 5SU1324-7FM20 RCBO, 2P, 20A, Type A, 10kA","metaDescription":"Siemens SENTRON 5SU1324-7FM20 RCBO, 2-pole, 20 A rated, Type A, 10 kA breaking capacity. Current production. Quoted 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":"77 mm","Solid":"0.75 ... 35 mm²","Width":"54 mm","Height":"90 mm","Stranded":"0.75 ... 35 mm²","at 30 Cel":"20 A","at 40 Cel":"18.8 A","at 45 Cel":"18.2 A","at 50 Cel":"17.4 A","at 55 Cel":"16.2 A","at 60 Cel":"16.2 A","at 65 Cel":"15.4 A","at 70 Cel":"14.6 A","Halogen-Free":"Yes","Silicon-Free":"Yes","During Storage":"-40 ... +75 °C","Number of poles":"2","Type of voltage":"AC","lifecycle_stage":"current","Mounting position":"any","Installation depth":"70 mm","Product brand name":"SENTRON","Ambient temperature":"-25 ... +55 °C","Product designation":"RCBO","Protection class IP":"IP20, if the distribution board is installed, with connected conductors","Overvoltage category":"III","Design of the product":"Instantaneous","Energy limiting class":"3","Number of width units":"3","Type of fault current":"A","Number of poles / Note":"2P","acc. to DIN EN 61346-2":"F","acc. to DIN EN 81346-2":"F","circuit-breaker / Design":"5SU1","Current / at AC / rated value":"20 A","Tripping characteristic class":"C","acc. to EN 60898 / rated value":"10 kA","For Testing Equipment / Minimum":"195 V","Position / of power supply cord":"Either top or bottom","Number of poles / with protection":"2","acc. to IEC 60947-2 / rated value":"20 kA","Product feature / Touch protection":"Yes","Supply voltage frequency / rated value":"50 Hz","Tripping residual current / rated value":"30 mA","Influence of the surrounding temperature":"Max. 95% humidity","Surge current resistance / at (8/20) μs":"1 kA","Tightening torque / with screw-type terminals":"2.5 ... 3 N·m","Product function / neutral conductor switching":"Yes","Mechanical service life (switching cycles) / typical":"10 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f8a3f804604e34cc21a3fa836405929c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=472859&mlfb=5SU1324-7FM20","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1324-7FM20/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 5SU1324-7FM20 and how do I get a price?","answer":"Sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for availability and current pricing."},{"question":"Will 5SU1324-7FM20 drop into a panel that was specified around 5SL6563-7BB without rewiring?","answer":"The 5SU1324-7FM20 is a 2-pole RCBO with a 54 mm width (3 MW), while the 5SL6563-7BB is a different form factor. Verify the DIN-rail space and terminal compatibility before swapping — the 5SU1324-7FM20 accepts up to 35 mm² conductors and mounts in any position, but the physical fit depends on your panel layout."},{"question":"What is 5SU1324-7FM20's listed depth?","answer":"Overall depth is 77 mm; installation depth behind the panel face is 70 mm."},{"question":"What compliance documentation does this brand provide for 5SU1324-7FM20?","answer":"The device is halogen-free and silicon-free. It is rated per EN 60898 with overvoltage category III. Specific RoHS/REACH/UL declarations should be requested at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1324-7FM20","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/5SU1324-7FM20 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}}