{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SFA895019R7020","brand":"ABB","brandSlug":"abb","productSlug":"1SFA895019R7020","canonicalUrl":"https://aoctrl.com/abb/1SFA895019R7020","factsUrl":"https://aoctrl.com/api/mcp/products/1SFA895019R7020","rawCanonicalId":null},"summary":{"shortDescription":"ABB PSTB840 series softstarter, order code 1SFA895019R7020, 840 A rated operational current in-line connection, 450 kW at 400 V, built-in electronic overload protection, 0...120 s ramp time.","salesMarkdown":"## Softstarter for heavy motor loads The ABB PSTB840 1SFA895019R7020 is a softstarter rated 840 A in-line connection (Ie) and 1455 A inside-delta, delivering 450 kW at 400 V or 800 kW in the delta configuration. That current class puts it squarely on large pumps, compressors, conveyors, and crushers — loads where across-the-line starting would hammer the supply and the mechanical train. Built-in electronic overload protection eliminates the need for a separate overload relay, saving a DIN-rail slot and reducing wiring. The current limit function adjusts 1.5–7× Ie, letting you tune the start to the load — set it low for a centrifugal pump, higher for a loaded conveyor. The 0–120 s ramp time and initial voltage 30–70 % give you a wide window to dial in the acceleration profile. Step-down voltage special ramp (100–30 %) handles the deceleration side for loads that shouldn't coast. ## Control and integration Control supply accepts 100–250 V AC; the control circuit also takes 24 V DC for PLC compatibility. Analog output 0–10 V feeds a speed or current signal back to the controller. Communication is via a standard FieldBusPlug — the ABB fieldbus adapter interface, so you can drop in PROFIBUS, DeviceNet, or Ethernet adapters without rewiring the base unit. Three signal relays are built in: run, fault, and bypass, plus an overload signal relay. That gives the PLC direct status feedback without extra interposing relays. The inside-delta connection switch is onboard, so you can rewire the motor windings for the higher delta current without an external contactor set. Main circuit terminals are bars with a 12.5 mm hole — expect lug-type connections. Control circuit torque is 0.5 N·m. Ambient operating range is 0 to +50 °C.","metaTitle":"ABB PSTB840 1SFA895019R7020 Softstarter, 840 A","metaDescription":"ABB PSTB840 softstarter 1SFA895019R7020, 840 A in-line (1455 A inside delta), 450 kW at 400 V, built-in electronic overload, 0-120 s ramp. Current production, sourced to order.","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":"PSTB840","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) 450 kW","Rated Operational Power - Inside Delta Connection":"at 400 V 800 kW","Popular Downloads/Data Sheet, Technical Information":"1SFC132005C0201","Rated Operational Current - In-Line Connection (Ie)":"840 A","Rated Operational Current - Inside Delta Connection":"1455 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/1sfa895019r7020","alternativesUrl":"https://aoctrl.com/api/mcp/products/1SFA895019R7020/alternatives.json"},"ai":{"faq":[{"question":"What is 1SFA895019R7020's listed ramp time?","answer":"The ramp time is adjustable from 0 to 120 seconds, with an initial voltage setting of 30–70 % and a step-down voltage special ramp of 100–30 %."},{"question":"What communication interface does 1SFA895019R7020 use?","answer":"It uses a standard FieldBusPlug interface, which accepts ABB's fieldbus adapter modules for protocols like PROFIBUS, DeviceNet, or Ethernet."},{"question":"Where can I buy 1SFA895019R7020 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock count or price is listed here."},{"question":"What compliance documentation is available for 1SFA895019R7020?","answer":"The manufacturer lists instructions and manual (1SFC132003M0201) and a data sheet (1SFC132005C0201) as popular downloads. RoHS declaration is marked as no declaration needed. The part is classified as Business To Business and WEEE Category 4 Large Equipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SFA895019R7020","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/1SFA895019R7020 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}}