{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SU1624-0KK82","brand":"Siemens","brandSlug":"siemens","productSlug":"5SU1624-0KK82","canonicalUrl":"https://aoctrl.com/siemens/5SU1624-0KK82","factsUrl":"https://aoctrl.com/api/mcp/products/5SU1624-0KK82","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCBO, 2-pole, B-curve, 300 mA residual current, 125 A rated current, 10 kA breaking capacity, halogen-free, silicon-free, IP20.","salesMarkdown":"The Siemens 5SU1624-0KK82 is a 2-pole RCBO (residual current circuit breaker with overcurrent protection) from the SENTRON family, rated 125 A at 30 °C, B-curve, with a 300 mA residual trip and a 10 kA breaking capacity per both EN 60898 and IEC 60947-2. That 300 mA sensitivity is sized for equipment protection rather than personal shock protection — it catches ground-leakage faults on fixed machinery or distribution subfeeds where a 30 mA device would nuisance-trip on cable capacitance. This RCBO is rated 125 A at 30 °C, but the continuous current drops as the enclosure heats up: 115.62 A at 40 °C, 111.25 A at 45 °C, 106.25 A at 50 °C, 101.25 A at 55 °C, and 96.25 A at 60 °C. That derating curve is the one you size the load against — if the panel ambient hits 50 °C, you can't pull the full 125 A through it. The unit is 2 modular width units (MW) wide, installs in any mounting position, and accepts supply from either top or bottom. Installation depth is 70 mm. Touch protection is built in on the line-side terminals. The 10 kA breaking capacity at both EN 60898 and IEC 60947-2 means it can safely interrupt a fault current up to 10,000 A — standard for residential and light commercial distribution boards. Pollution degree 2 (non-conductive pollution that becomes conductive only when condensation occurs) is the typical indoor panel condition. Operating frequency is 50 Hz only — not suitable for 60 Hz grids without derating verification. The insulation voltage (Ui) is rated 440 V, so it's fine on 230/400 V three-phase systems. Maximum ambient temperature is 75 °C; minimum is -40 °C, which covers cold storage or unheated substations.","metaTitle":"Siemens 5SU1624-0KK82 SENTRON RCBO, 2-pole, B-300mA, 125A","metaDescription":"Siemens 5SU1624-0KK82 SENTRON RCBO, 2-pole, B-curve, 300 mA residual, 125 A rated, 10 kA breaking capacity. Halogen-free, silicon-free. Current lifecycle. Quoted to order against R","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Residual Current Breakers (RCCB/RCBO)"],"specifications":{"Maximum":"75 °C","Minimum":"-40 °C","Halogen-Free":"Yes","Silicon-Free":"Yes","Number Of Poles":"2","lifecycle_stage":"current","Mounting Position":"any","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Degree Of Pollution":"2","Operating Frequency":"50 Hz","Product Designation":"RCBO","acc. to IEC 81346-2":"F","at AC / rated value":"125 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":"AC","acc. to DIN EN 61346-2":"F","Energy Limitation Class":"3","Weight / With Packaging":"1 121 g","at 30 °C / rated value":"125 A","at 40 °C / rated value":"115.62 A","at 45 °C / rated value":"111.25 A","at 50 °C / rated value":"106.25 A","at 55 °C / rated value":"101.25 A","at 60 °C / rated value":"96.25 A","Number Of Modular Width Units":"2","Tripping Characteristic Class":"B","acc. to EN 60898 / rated value":"10 kA","For Testing Equipment / Minimum":"100 V","Position / Of Power Supply Cord":"Either top or bottom","Number Of Poles / With Protection":"2","acc. to IEC 60947-2 / rated value":"10 kA","Product Feature / Touch Protection":"Yes","Tripping Fault Current / Rated Value":"300 mA","insulation voltage (Ui) / rated value":"440 V","Supply Voltage Frequency / Rated Value":"50 Hz","Surge Voltage Resistance / Rated Value":"4 000 V","Influence Of The Surrounding Temperature":"Max. 95% humidity","Surge Current Resistance / At (8/20) μS":"1 kA","Type Of Voltage / Of The Operating Voltage":"AC","Product Component / 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/b3f2be78d82e6c3eb12a4c35cf65797a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=117970&mlfb=5SU1624-0KK82","alternativesUrl":"https://aoctrl.com/api/mcp/products/5SU1624-0KK82/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 5SU1624-0KK82?","answer":"Submit an RFQ for the 5SU1624-0KK82. Pricing and stock are confirmed at quote time through independent distribution — no automated price or lead time is published here."},{"question":"When sourcing 5SU1624-0KK82, what's the closest functional second-source — 5SU9354-7KK16?","answer":"The 5SU9354-7KK16 is a different variant — it's a 4-pole RCBO with a different residual current rating and curve. It will not drop into a 2-pole panel position without rewiring and a different neutral bar arrangement. The 5SU1624-0KK82 is a 2-pole, B-curve, 300 mA device; the 5SU9354-7KK16 is 4-pole. They are not direct swap-ins."},{"question":"Will 5SU1624-0KK82 drop into a panel that was specified around 5SU9354-7KK16 without rewiring?","answer":"No. The 5SU1624-0KK82 is a 2-pole device; the 5SU9354-7KK16 is 4-pole. The panel's busbar arrangement, neutral connection, and DIN-rail space allocation are different. You would need to rework the distribution board."},{"question":"What compliance documentation does this brand provide for 5SU1624-0KK82 (RoHS, REACH, UL, IEC)?","answer":"The part carries ratings per EN 60898 and IEC 60947-2, and is designated as halogen-free and silicon-free. The SENTRON brand typically provides a declaration of conformity covering the applicable IEC/EN standards. Specific RoHS/REACH declarations are available from the manufacturer upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SU1624-0KK82","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/5SU1624-0KK82 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}}