{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1955-5AP31-0ST0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1955-5AP31-0ST0","canonicalUrl":"https://aoctrl.com/siemens/3RT1955-5AP31-0ST0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1955-5AP31-0ST0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens withdrawable solenoid coil for 3RT105 contactors, 220-240V AC (50-60Hz) / DC operation, standard economy circuit, screw terminal, 20ms reduced break time.","salesMarkdown":"The Siemens 3RT1955-5AP31-0ST0 is a withdrawable solenoid coil purpose-built for the 3RT105 contactor frame. It operates on 220-240 V AC (50-60 Hz) or DC supply, and includes a standard economy circuit that reduces holding power once the contactor is sealed. The screw terminal connection matches typical panel wiring practice. A 20 ms reduced break time means the coil drops out faster than the standard version — relevant when you need quicker contact separation for load disconnection or safety circuit response. ## Integration notes The withdrawable design means the coil unclips from the contactor magnet assembly without disturbing the main power wiring — useful for a panel OEM or field service swap. The screw terminals accept standard ferrule or solid conductors. The economy circuit reduces continuous DC draw once the contactor picks, so factor that into your 24 VDC control supply budget if you're running multiple coils. The 20 ms reduced break time is a deliberate feature: it shortens the arc extinction delay, which can matter on inductive load switching or when coordinating with upstream protection.","metaTitle":"Siemens 3RT1955-5AP31-0ST0 Solenoid Coil, Withdrawable Drive","metaDescription":"Siemens 3RT1955-5AP31-0ST0 withdrawable solenoid coil for 3RT105 contactors. 220-240V AC/DC operation, screw terminal, reduced break time 20ms. Active production, RoHS compliant si","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"title":"3RT1955-5AP31-0ST0","Group Code":"R711","description":"Withdrawable drive for contactors 3RT105 AC (50...60 Hz) / DC operation, 220... 240 V Operating mechanism: Standard,economy circuit Screw terminal Reduced break time 20 ms","Product Group":"3729","Product class":"A: Standard product which is a stock item could be returned within the returns guidelines/period.","Quantity Unit":"1 Piece","Product Family":"Solenoid coils","lifecycle_stage":"current","Packaging Quantity":"1","Export Control Regulations":"AL : N / ECCN : N","Packaging dimensions (L x W x H)":"124.5 x 86.5 x 105.00 mm","Compliance with the substance restrictions according to RoHS directive":"Since: 01-05-12","REACH Art. 33 Duty to inform according to the current list of candidates":"Reach Information"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/af0119927ec3502af363462155ab8a93.pdf","sourceUrl":"https://sieportal.siemens.com/en-ae/products-services/detail/3RT1955-5AP31-0ST0?tree=CatalogTree"},"ai":{"faq":[{"question":"What compliance documentation is available for this coil?","answer":"RoHS compliance is confirmed since May 2012. REACH Article 33 information is available per the current candidate list. Export control classifications are AL: N / ECCN: N."},{"question":"What contactor does this coil fit?","answer":"This is the withdrawable drive coil for the Siemens 3RT105 contactor series. It is not a universal fit — verify your contactor frame matches the 3RT105 family before ordering."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1955-5AP31-0ST0","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/3RT1955-5AP31-0ST0 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}}