{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RV2917-1A","brand":"Siemens","brandSlug":"siemens","productSlug":"3RV2917-1A","canonicalUrl":"https://aoctrl.com/siemens/3RV2917-1A","factsUrl":"https://aoctrl.com/api/mcp/products/3RV2917-1A","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RV2917-1A three-phase busbar with left infeed, for 2 circuit breakers size S00/S0, 63 A rated current, 500 V AC, snap-on 35 mm DIN rail, spring-loaded terminals.","salesMarkdown":"The Siemens SIRIUS 3RV2917-1A is a three-phase busbar assembly with infeed on the left, designed to distribute power to two 3RV2 circuit breakers of Size S00 or S0. It's the power distribution backbone for a compact motor feeder group — think a pair of motor-protective breakers fed from a single supply point, common in control panels for conveyors, pumps, and small machine sections. Rated for 63 A continuous (thermal current) at up to 500 V AC, with a UL rating of 600 V AC, this busbar handles the full load of two S00/S0 breakers simultaneously. The 63 A figure is the busbar's own limit — it's not the sum of the breaker ratings, but the maximum current the copper path can carry before derating. The 110 mm width matches the footprint of two S00/S0 breakers side by side, and the 86.5 mm depth keeps it within typical enclosure depth limits. ## Integration — What Connects and How Designed specifically for the 3RV2 family of circuit breakers (Size S00 and S0). The busbar plugs directly into the breaker line-side terminals via the spring-loaded interface — no additional wiring between breakers. The left-side infeed accepts the supply cable or another busbar feeder; the busbar then distributes the three phases across both breaker positions. Clearance spaces: 10 mm upwards from the busbar body, zero clearance needed at the sides or rear. This is a tight-fit design — you can butt adjacent components against it side-to-side and back-to-back, which matters when packing breakers into a shallow enclosure. Ambient operating range of -20 to +60 °C, surge withstand rated at 6 kV. The 3-pole construction matches standard three-phase motor circuits. The spring-loaded terminal type accepts solid or ferruled stranded conductors — typical cross-sections for 63 A feeder circuits.","metaTitle":"Siemens 3RV2917-1A SIRIUS 3-Phase Busbar, 63 A, 500 V AC","metaDescription":"Siemens SIRIUS 3RV2917-1A three-phase busbar with infeed left for 2 circuit breakers Size S00/S0. Rated 63 A, 500 V AC, snap-on 35 mm DIN rail. Active production, sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Motor Protection Circuit Breakers (MPCB)"],"specifications":{"Depth":"86.5 mm","Width":"110 mm","title":"3RV2917-1A","Height":"129 mm","Upwards":"10 mm","Backwards":"0 mm","At The Side":"0 mm","description":"3-phase busbar with infeed left for 2 circuit breakers Size S00 and S0","Thermal Current":"63 A","lifecycle_stage":"current","Fastening Method":"snap-on fastening on 35 mm DIN rail","Mounting Position":"any","Product Brand Name":"SIRIUS","Product Designation":"three-phase busbars with infeed","Suitability For Use":"circuit-breakers 3RV2","Design Of The Product":"for 2 switches with infeed on the left","Size Of The Circuit-Breaker":"S00, S0","Substance Prohibitance (Date)":"10/01/2009","Operational Current Rated Value":"63 A","operating voltage at AC rated value":"500 V","Ambient Temperature During Operation":"-20 ... +60 °C","Surge Voltage Resistance Rated Value":"6 kV","Number Of Poles For Main Current Circuit":"3","operating voltage at AC according to UL rated value":"600 V","Type Of Electrical Connection For Main Current Circuit":"spring-loaded terminals"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$13.37","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/e8e36911beeddd46c3ada0449e5b1d16.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=302125&mlfb=3RV2917-1A"},"ai":{"faq":[{"question":"What is the 3RV2917-1A used for?","answer":"It is a three-phase busbar with infeed on the left, designed to supply power to two Siemens 3RV2 circuit breakers of Size S00 or S0. It distributes the three-phase supply across both breaker positions without additional wiring, used in motor feeder groups within control panels."},{"question":"What are the key dimensions of 3RV2917-1A?","answer":"Width 110 mm, height 129 mm, depth 86.5 mm. Clearance required: 10 mm upwards, zero at sides and rear. It mounts on 35 mm DIN rail via snap-on fastening."},{"question":"What is the current rating of 3RV2917-1A?","answer":"Rated thermal current (Ith) of 63 A at up to 500 V AC, with a UL voltage rating of 600 V AC. This is the busbar's continuous current capacity, not the sum of the connected breaker ratings."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RV2917-1A","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/3RV2917-1A 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}}