{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1952-1AE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1952-1AE0","canonicalUrl":"https://aoctrl.com/siemens/3RV1952-1AE0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1952-1AE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS undervoltage release, 220...240 V AC, 220...250 V DC, for size S00/S0 3RV13 circuit breakers.","salesMarkdown":"The Siemens SIRIUS 3RV1952-1AE0 is an undervoltage release for 220...240 V AC and 220...250 V DC, for use with 3RV13 breakers. An undervoltage release is a shunt-trip accessory that automatically opens the breaker if the control voltage falls — a standard requirement for applications where an unexpected restart after a power dip could be hazardous, such as conveyor lines, machine tools, or process pumps. It mounts directly onto the breaker, so no additional DIN-rail space is consumed. ## Integration with the breaker This release clips onto the left side of a SIRIUS 3RV13 size S00 or S0 circuit breaker. No additional wiring is needed beyond the two control-voltage terminals — the mechanical trip linkage is built into the snap-on interface. The breaker's existing screw terminals accept 2x (0.5...1.5 mm²) or 2x (0.75...2.5 mm²) solid or ferruled stranded wire, torqued to 0.8...1.2 N·m.","metaTitle":"Siemens 3RV1952-1AE0 SIRIUS undervoltage release, 220-240 V","metaDescription":"Siemens SIRIUS 3RV1952-1AE0 undervoltage release, 220-240 V AC / 220-250 V DC for size S00/S0 breakers. Current lifecycle stage. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"lifecycle_stage":"current","Product brand name":"SIRIUS","Product designation":"undervoltage release"}},"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=43047&mlfb=3RV1952-1AE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1952-1AE0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RV1952-1AE0 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current pricing and availability — no stock count or lead-time figure is published here."},{"question":"What is the closest functional second-source for 3RV1952-1AE0?","answer":"There is no direct second-source for this Siemens SIRIUS undervoltage release. The 3RV1011-0GA10 is a motor-protective circuit breaker in the same frame, not a functional substitute — it serves a different protection role. The 3RV1952-1AE0 is the only Siemens accessory that provides undervoltage release for S00/S0 breakers."},{"question":"Will 3RV1952-1AE0 drop into a panel specified around 3RV1011-0GA10?","answer":"Yes, it snaps onto the left side of the 3RV1011-0GA10 breaker without rewiring. The mechanical interface and terminal layout are shared across the SIRIUS S00 frame."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1952-1AE0","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/3RV1952-1AE0 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}}