{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"5SM2333-0","brand":"Siemens","brandSlug":"siemens","productSlug":"5SM2333-0","canonicalUrl":"https://aoctrl.com/siemens/5SM2333-0","factsUrl":"https://aoctrl.com/api/mcp/products/5SM2333-0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SENTRON RCD unit, instantaneous, AC type, 3-pole, 40 A rated current, 30 mA fault current, 50 Hz, IP20.","salesMarkdown":"It's an instantaneous type (no time delay), designed for AC residual currents only, and built to snap onto a DIN rail in a standard distribution board — 3 modular width units wide, 70 mm deep. The 40 A rating at AC is the continuous current it can carry in a 50 Hz circuit — sized for a sub-feed or a group of downstream breakers. The 30 mA trip threshold covers personnel protection (shock hazard) per IEC 60364. Because it's instantaneous, it trips within milliseconds on a fault, but that also means it's not suitable where you need a short time delay to ride through inrush or to coordinate with downstream RCDs. The insulation voltage is 460 V, and it withstands a 4 kV surge — overvoltage category III, so it's at home in the main distribution panel, not just sub-boards. ## Temperature derating — the real-world current Above that, it derates: 37.2 A at 45 °C, 36 A at 50 °C, 34.8 A at 55 °C, 34 A at 60 °C, 33.2 A at 65 °C, and 32 A at 70 °C. If your panel runs warm — say, a packed enclosure near a drive cabinet — the 32 A floor at 70 °C is the number to use for your load calculation.","metaTitle":"Siemens SENTRON 5SM2333-0 RCD Unit, 40 A, 30 mA, 3-Pole","metaDescription":"Siemens SENTRON 5SM2333-0 RCD unit, 40 A rated AC, 30 mA trip, 3-pole, IP20. Active lifecycle. 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":"105 mm","title":"5SM2333-0","Height":"90 mm","Maximum":"75 °C","Minimum":"-40 °C","Sealable":"No","description":"RC unit for 5SL4, 3-pole, type AC, In: 40 A, 30 mA, Un AC: 400 V","Design Of Pole":"3 poles","Number Of Poles":"3","lifecycle_stage":"current","Fastening Method":"REG","Mounting Position":"any","at AC rated value":"40 A","Installation Depth":"70 mm","Product Brand Name":"SENTRON","Product Variations":"for 5SL4","Degree Of Pollution":"2","Product Designation":"RCD-unit","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","at 40 °C rated value":"37.2 A","at 45 °C rated value":"37.2 A","at 50 °C rated value":"36 A","at 55 °C rated value":"34.8 A","at 60 °C rated value":"34 A","at 65 °C rated value":"33.2 A","at 70 °C rated value":"32 A","OFF-delay time adjustable":"No","For Testing Equipment Minimum":"195 V","Number Of Modular Width Units":"3","Position Of Power Supply Cord":"top or bottom","Rated Fault Current Adjustable":"No","Protection Function False Tripping":"Yes","Tripping Fault Current Rated Value":"30 mA","insulation voltage (Ui) rated value":"460 V","Surge Voltage Resistance Rated Value":"4 000 V","Value Range Of The Operating Frequency":"50 Hz","Type Of Voltage Of The Operating Voltage":"AC","Value Range Of The Supply Voltage Frequency":"50 Hz","Mechanical Service Life (Operating Cycles) Typical":"10 000","for rated value of the current at AC in hot operating state per pole":"3.6 W"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/77919851610c276b0b3d2d77e3718015.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=353634&mlfb=5SM2333-0"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/5SM2333-0","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/5SM2333-0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}