{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV1952-1AD0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV1952-1AD0","canonicalUrl":"https://aoctrl.com/siemens/3RV1952-1AD0","factsUrl":"https://aoctrl.com/api/mcp/products/3RV1952-1AD0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS undervoltage release, 3RV1952-1AD0, 110-127 V AC, 110-125 V DC, for size 3RV13 5.","salesMarkdown":"The Siemens SIRIUS 3RV1952-1AD0 is an undervoltage release designed for the 3RV13 5 series of motor-protective circuit breakers. It trips the breaker when the control voltage drops below its dropout threshold, preventing an automatic restart when power returns — a standard safety interlock for machinery where unexpected re-energisation could create a hazard. Rated for 110...127 V AC and 110...125 V DC, this release covers the common 110 V control-voltage range found across European and North American industrial panels. The dual AC/DC rating simplifies stocking — one part number handles both supply types within those bands. ## Panel integration This release mounts directly onto the 3RV13 5 circuit breaker — no separate DIN-rail footprint or additional wiring space needed. The connection is mechanical and electrical via the breaker's accessory slot, so panel layout stays unchanged when adding undervoltage protection to an existing motor starter.","metaTitle":"Siemens 3RV1952-1AD0 SIRIUS Undervoltage Release, 110-127 V","metaDescription":"Siemens SIRIUS 3RV1952-1AD0 undervoltage release for 3RV13 5. Rated 110-127 V AC, 110-125 V DC. 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=244757&mlfb=3RV1952-1AD0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RV1952-1AD0/alternatives.json"},"ai":{"faq":[{"question":"What voltage does 3RV1952-1AD0 operate on?","answer":"It operates on 110...127 V AC or 110...125 V DC, covering the standard 110 V control-voltage range for both AC and DC supplies."},{"question":"Which circuit breaker does 3RV1952-1AD0 fit?","answer":"It is designed for the Siemens 3RV13 5 series of motor-protective circuit breakers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV1952-1AD0","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/3RV1952-1AD0 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}}