{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SFA895020R7000","brand":"ABB","brandSlug":"abb","productSlug":"1SFA895020R7000","canonicalUrl":"https://aoctrl.com/abb/1SFA895020R7000","factsUrl":"https://aoctrl.com/api/mcp/products/1SFA895020R7000","rawCanonicalId":null},"summary":{"shortDescription":"ABB PSTB1050 soft starter, order code 1SFA895020R7000, 1050 A in-line rated current, 560 kW at 400 V, 400-690 V AC, built-in electronic overload protection.","salesMarkdown":"## Soft starter for heavy motor starts The ABB PSTB1050 (1SFA895020R7000) is a soft starter rated for 1050 A in-line connection, delivering 560 kW at 400 V. It handles motors up to 690 V AC and includes built-in electronic overload protection, so you can omit a separate overload relay from the panel. Ramp time is adjustable from 0 to 120 seconds, with an initial voltage during start configurable between 30% and 70%. The current limit function spans 1.5 to 7 times the rated current Ie, giving you control over inrush on high-inertia loads like conveyors or crushers. Communication uses a standard FieldBusPlug interface, and the control circuit accepts 24 V DC. Three signal relays are built in — run, fault, and bypass — plus an overload signal relay and a red LED for fault indication. ## Integration notes Main circuit terminals are bars with a 12.5 mm hole diameter; control circuit terminals accept rigid 1 x 2.5 mm² wire with a tightening torque of 0.5 N·m. The supply circuit connects via rigid 1 x 2.5 mm² as well. Ambient operating temperature range is 0 to +50 °C. The inside-delta connection option boosts capacity to 1810 A and 1000 kW at 400 V, useful for retrofit into existing delta-configured motor windings. A switch for inside-delta connection is included on the unit.","metaTitle":"ABB PSTB1050 1SFA895020R7000 Soft Starter, 1050 A, 560 kW","metaDescription":"ABB PSTB1050 soft starter, 1SFA895020R7000. 1050 A in-line, 560 kW at 400 V, 400-690 V AC. Built-in electronic overload, ramp 0-120 s, FieldBusPlug. Current lifecycle stage. Source","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Soft Starters"],"specifications":{"Ramp Time":"0 ... 120 second [unit of time]","Communication":"FiledBusPlug(Standard)","Terminal Type":"Main Circuit: Bars","Analog Outputs":"0...10 volts","lifecycle_stage":"current","Run Signal Relay":"Yes","Product Main Type":"PSTB1050","Tightening Torque":"Control Circuit 0.5 N·m","Fault Signal Relay":"Yes","Overload Protection":"Build-in electronic overload protection","Rated Frequency (f)":"50/60 Hz","By-pass Signal Relay":"Yes","Degree of Protection":"acc. to IEC 60529, IEC 60947-1, EN 60529 Main Terminals IP00","Overload Signal Relay":"Yes","Current Limit Function":"1.5 ... 7xIe","Ambient Air Temperature":"Operation 0 ... +50 °C","Rated Operational Voltage":"Main Circuit 400 ... 690 V AC","Service Factor Percentage":"100 %","Object Classification Code":"Q","Initial Voltage During Start":"30 ... 70 %","Signal Indication Fault (LED)":"Red","Integrated Electronic Overload":"Yes","Step Down Voltage Special Ramp":"100 ... 30 %","Connecting Capacity Main Circuit":"Hole Diameter 12.5 mm","Material Compliance/WEEE Category":"4. Large Equipment (Any External Dimension More Than 50 cm)","Rated Control Supply Voltage (Us)":"100 ... 250 V AC","Connecting Capacity Supply Circuit":"Rigid 1 x 2.5","Material Compliance/WEEE B2C / B2B":"Business To Business","Rated Control Circuit Voltage (Uc)":"DC Operation 24 V","Signal Indication Protection (LED)":"Yellow","Switch for Inside Delta Connection":"Yes","Connecting Capacity Control Circuit":"Rigid 1 x 2.5 mm²","Material Compliance/RoHS Information":"No declaration needed","Popular Downloads/Instructions and Manuals":"1SFC132003M0201","Starting Capacity at Maximum Rated Current Ie":"3xIe for 15s","Rated Operational Power - In-Line Connection (Pe)":"(400 V) 560 kW","Rated Operational Power - Inside Delta Connection":"at 400 V 1000 kW","Popular Downloads/Data Sheet, Technical Information":"1SFC132005C0201","Rated Operational Current - In-Line Connection (Ie)":"1050 A","Rated Operational Current - Inside Delta Connection":"1810 A","Material Compliance/Conflict Minerals Reporting Template (CMRT)":"9AKK108467A5658"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://www.abb.com/global/en/products/1sfa895020r7000","alternativesUrl":"https://aoctrl.com/api/mcp/products/1SFA895020R7000/alternatives.json"},"ai":{"faq":[{"question":"What is the ramp time on this soft starter?","answer":"The ramp time is adjustable from 0 to 120 seconds."},{"question":"Where can I buy 1SFA895020R7000 and 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."},{"question":"What communication interface does it use?","answer":"It uses a standard FieldBusPlug interface for communication."},{"question":"What compliance documentation is available?","answer":"The part is classified as WEEE Category 4 (Large Equipment) and B2B. RoHS declaration is noted as not required for this product category."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SFA895020R7000","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/1SFA895020R7000 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}}