{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SFA895017R7020","brand":"ABB","brandSlug":"abb","productSlug":"1SFA895017R7020","canonicalUrl":"https://aoctrl.com/abb/1SFA895017R7020","factsUrl":"https://aoctrl.com/api/mcp/products/1SFA895017R7020","rawCanonicalId":null},"summary":{"shortDescription":"ABB PSTB570 soft starter, order code 1SFA895017R7020, 570 A in-line / 987 A inside-delta, 315 kW at 400 V, 0-120 s ramp, built-in electronic overload protection.","salesMarkdown":"The ABB PSTB570 soft starter (1SFA895017R7020) is a 570 A in-line, 987 A inside-delta motor starter with a built-in electronic overload protection relay. Rated operational power reaches 315 kW at 400 V in-line and 540 kW at 400 V inside-delta, making it suitable for medium-to-large induction motors on pumps, fans, compressors, and conveyors in industrial panels. The inside-delta configuration boosts that to 987 A / 540 kW by placing the starter in the motor's delta windings, reducing current through the power electronics. Both figures are at 50/60 Hz, 400–690 V AC main circuit voltage. Built-in electronic overload protection eliminates the need for a separate thermal relay. The current limit function is adjustable from 1.5 to 7× Ie, and starting capacity is 3× Ie for 15 seconds — enough for most standard-duty motor starts without external bypass contactors. Ramp time spans 0 to 120 seconds, with initial voltage during start adjustable from 30 to 70 %. A step-down voltage special ramp (100 to 30 %) handles pump deceleration to prevent water hammer. The 0–10 V analog output provides a speed or current signal to a PLC or drive controller. ## Control and integration Control supply voltage is 100–250 V AC; a separate 24 V DC control circuit is also available. Communication is via a standard FieldBusPlug — no external gateway needed for PROFIBUS, DeviceNet, or CANopen depending on the plug fitted. Main circuit terminals are bars (hole diameter 12.5 mm); control circuit terminals accept 1 × 2.5 mm² rigid wire at 0.5 N·m torque. Three signal relays are built in: run, fault, and bypass. A separate overload signal relay and a red fault LED plus yellow protection LED provide local status. The inside-delta connection switch is integrated, saving external wiring.","metaTitle":"ABB PSTB570 1SFA895017R7020 Soft Starter, 570 A, 315 kW","metaDescription":"ABB PSTB570 soft starter, 570 A in-line / 987 A inside-delta, 315 kW at 400 V. Built-in electronic overload, 0-120 s ramp, 0-10 V analog out. Current lifecycle stage, available to","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":"PSTB570","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":"115 %","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) 315 kW","Rated Operational Power - Inside Delta Connection":"at 400 V 540 kW","Popular Downloads/Data Sheet, Technical Information":"1SFC132005C0201","Rated Operational Current - In-Line Connection (Ie)":"570 A","Rated Operational Current - Inside Delta Connection":"987 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/1sfa895017r7020","alternativesUrl":"https://aoctrl.com/api/mcp/products/1SFA895017R7020/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 1SFA895017R7020 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit an RFQ for current availability and pricing."},{"question":"What is the ramp time on this PSTB570?","answer":"The ramp time is adjustable from 0 to 120 seconds, with initial voltage during start set between 30 and 70 %."},{"question":"What communication interface does this soft starter use?","answer":"Communication is via a standard FieldBusPlug — the same interface used across the PSTB series, accepting PROFIBUS, DeviceNet, or CANopen fieldbus plugs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SFA895017R7020","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/1SFA895017R7020 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}}