{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1SFA894005R7020","brand":"ABB","brandSlug":"abb","productSlug":"1SFA894005R7020","canonicalUrl":"https://aoctrl.com/abb/1SFA894005R7020","factsUrl":"https://aoctrl.com/api/mcp/products/1SFA894005R7020","rawCanonicalId":null},"summary":{"shortDescription":"ABB, PST50 series, soft starter, order code 1SFA894005R7020, 50 A rated operational current in-line, 25 kW at 400 V, 0–120 s ramp time, 100–250 V AC control supply, screw terminals.","salesMarkdown":"The ABB 1SFA894005R7020 is a PST50 soft starter rated for 50 A in-line connection (Ie), delivering 25 kW at 400 V. In an inside-delta configuration it handles 85 A and 45 kW — the delta wiring shifts the current path so the starter sees phase current while the motor draws line current, effectively doubling the power throughput for the same unit. Ramp time is adjustable from 0 to 120 seconds, with an initial voltage during start settable between 30 and 70 %. A step-down special ramp can drop voltage from 100 down to 30 %. Current limit function spans 1.5 to 7 times Ie. These give you control over the acceleration profile for pumps, conveyors, or compressors — soft starting avoids mechanical shock and limits inrush. Built-in electronic overload protection is integrated, with separate fault, overload, by-pass, and run signal relays — all screw-terminal connections. The control supply accepts 100–250 V AC; a separate 24 V DC control circuit is also available for logic-level interfacing. Main circuit terminals accept rigid 1 x 10 to 95 mm² cable; control and supply circuits take 1 x 2.5 mm². Screw terminals with a control-circuit tightening torque of 0.5 N·m. The main terminals carry an IP10 degree of protection per IEC 60529 and IEC 60947-1 — finger-safe against accidental contact but not sealed against dust or moisture, so the unit belongs inside an enclosure rated for the environment. Ambient operating temperature range is 0 to +50 °C, with a 115 % service factor — meaning it can run at 115 % of rated current without tripping the overload, useful for high-inertia starts or occasional overload conditions.","metaTitle":"ABB PST50 1SFA894005R7020 Soft Starter, 50A In-Line, 25kW","metaDescription":"ABB PST50 soft starter, 50 A in-line (Ie), 25 kW at 400 V. Built-in electronic overload, 0–120 s ramp, 100–250 V AC control. Current lifecycle stage. Available to order against RFQ","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":"Screw Terminals","Analog Outputs":"0...10 volts","lifecycle_stage":"current","Run Signal Relay":"Yes","Product Main Type":"PST50","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 IP10","Overload Signal Relay":"Yes","Current Limit Function":"1.5 ... 7xIe","Ambient Air Temperature":"Operation 0 ... +50 °C","Rated Operational Voltage":"Main Circuit 208 ... 600 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":"Rigid 1 x 10 ... 95 mm²","Material Compliance/WEEE Category":"5. Small Equipment (No 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) 25 kW","Rated Operational Power - Inside Delta Connection":"at 400 V 45 kW","Popular Downloads/Data Sheet, Technical Information":"1SFC132005C0201","Rated Operational Current - In-Line Connection (Ie)":"50 A","Rated Operational Current - Inside Delta Connection":"85 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/1sfa894005r7020","alternativesUrl":"https://aoctrl.com/api/mcp/products/1SFA894005R7020/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 1SFA894005R7020 and get a price?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is the ramp time on this PST50 soft starter?","answer":"The ramp time is adjustable from 0 to 120 seconds, with initial voltage during start settable between 30 and 70 % and a step-down ramp from 100 down to 30 %."},{"question":"What communication interface does 1SFA894005R7020 use?","answer":"The communication interface is listed as FieldBusPlug (Standard) — it accepts a fieldbus plug for network integration, but the specific protocol (PROFIBUS, DeviceNet, etc.) depends on the plug module fitted."},{"question":"What compliance documentation is available for this ABB soft starter?","answer":"The material compliance notes WEEE category 5 (Small Equipment) and B2B classification. RoHS information is marked as 'No declaration needed'. Refer to the data sheet (1SFC132005C0201) and instruction manual (1SFC132003M0201) for full compliance details."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/abb/1SFA894005R7020","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/1SFA894005R7020 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}}