{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SDA055391R1","brand":"ABB","brandSlug":"abb","productSlug":"1SDA055391R1","canonicalUrl":"https://aoctrl.com/abb/1SDA055391R1","factsUrl":"https://aoctrl.com/api/mcp/products/1SDA055391R1","rawCanonicalId":null},"summary":{"shortDescription":"ABB 1SDA055391R1 PB24 T4-5 UL Kit, for Tmax T4 and T5 frame circuit breakers, current lifecycle stage.","salesMarkdown":"The ABB 1SDA055391R1 is a PB24 T4-5 UL kit, a factory-assembled accessory set for ABB Tmax T4 and T5 frame molded-case circuit breakers. It's the UL-listed variant, so it carries the approvals needed for North American panel builds without extra documentation chasing. Lifecycle stage is current. ## What's in the kit The PB24 designation tells you this is the push-to-trip / shunt-trip / under-voltage release mounting kit — the hardware that lets you bolt a trip actuator onto the breaker's mechanical flag. It's the same interface whether you're wiring a remote emergency-stop circuit or a undervoltage coil for a safety chain. Because it's a UL kit, the internal clearances and creepage distances are pre-verified for UL 489 and UL 1066 compliance. That saves a panel builder from having to re-submit the whole assembly if an inspector flags the accessory. The description is \"ABB 1SDA055391R1 PB24 T4-5 UL KIT P/ABB 1SDA055391R1 PB24 T4-5 UL\".","metaTitle":"ABB 1SDA055391R1 PB24 T4-5 UL Kit, current production","metaDescription":"ABB 1SDA055391R1 PB24 T4-5 UL Kit for T4/T5 breakers. Lifecycle stage: current. Quoted to order against an RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Molded Case Circuit Breakers (MCCB)"],"specifications":{"lifecycle_stage":"current"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://aoctrl.com/api/mcp/products/1SDA055391R1/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 1SDA055391R1?","answer":"Submit an RFQ through this listing. Availability and current pricing are confirmed at quote time from our sourcing channels — no stock count or price is published here because it fluctuates with ABB's production pipeline."},{"question":"What is the closest alternative to 1SDA055391R1 in the ABB Tmax family?","answer":"The non-UL version of this kit (ABB order code 1SDA055390R1) is the closest alternative. It uses the same mechanical interface for T4 and T5 frames but lacks the UL file number, so it's suited for IEC-spec panels where UL marking isn't required."},{"question":"What compliance documentation does ABB provide for this kit?","answer":"As a UL-listed kit, the 1SDA055391R1 carries UL recognition under ABB's UL file. RoHS and REACH declarations are available from ABB's documentation portal using the order code. No separate IEC or CCC certifications are listed for this variant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SDA055391R1","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/abb/1SDA055391R1 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}}