{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2056-2FC2-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2056-2FC2-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RB2056-2FC2-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2056-2FC2-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2056-2FC2-ZX95, CLASS 20E, 200 A operational current, S6 size, for contactor mounting or stand-alone installation.","salesMarkdown":"## Solid-state overload relay for motor protection The Siemens SIRIUS 3RB2056-2FC2-ZX95 is a solid-state overload relay sized S6, rated for 200 A operational current at AC-3e duty up to 1000 V. The CLASS 20E trip class means it allows a 20-second cold start at 7.2× rated current — the standard for standard-duty motor starting where the load accelerates within that window. It provides electronic overload protection with an integrated auxiliary switch that outputs a \"tripped\" message on fault, giving the control system a clean status signal without needing a separate contact block. Mounting is flexible: it fastens directly to a contactor or stands alone on the panel plate. The main circuit connects via M8 busbar connections, and the control wiring accepts 1x (0.5–4 mm²) or 2x (0.5–2.5 mm²) solid or stranded wire. The auxiliary contact ratings cover common control voltages: 2 A at 24 V, 4 A at 120 V, 3 A at 230 V, so it drives a PLC input or relay coil directly. Temperature compensation is active across the operating range. Shock resistance is 15g / 11 ms per IEC 60068-2-27; vibration resistance is 1–6 Hz at 15 mm, 6–500 Hz at 20 m/s² for 10 cycles. The substance prohibition date of 07/01/2006 aligns with RoHS compliance — the part was designed to meet the EU RoHS directive from that date forward.","metaTitle":"Siemens 3RB2056-2FC2-ZX95 SIRIUS Solid-State Overload Relay,","metaDescription":"Siemens SIRIUS 3RB2056-2FC2-ZX95 solid-state overload relay, CLASS 20E, 200 A operational current, 1000 V rated. Current production. Sourced to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Overload Relays"],"specifications":{"Note":"for message \"tripped\"","Depth":"155 mm","Solid":"1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²)","Width":"120 mm","Height":"119 mm","at 24 V":"2 A","at 60 V":"0.55 A","at 110 V":"0.3 A","at 120 V":"4 A","at 125 V":"0.3 A","at 220 V":"0.11 A","at 230 V":"3 A","Trip Class":"CLASS 20E","Rated Value":"1 000 V","During Storage":"-40 ... +80 °C","Thermal Current":"200 A","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Fastening Method":"Contactor mounting/stand-alone installation","Shock Resistance":"15g / 11 ms","For Main Contacts":"M8","Mounting Position":"any","Solid Or Stranded":"1x (0,5 ... 4 mm²), 2x (0,5 ... 2,5 mm²)","Product Brand Name":"SIRIUS","Product Designation":"solid-state overload relay","Vibration Resistance":"1-6 Hz, 15 mm; 6-500 Hz, 20 m/s²; 10 cycles","at 480 V rated value":"200 A","at 600 V rated value":"200 A","Size Of Overload Relay":"S6","For Main Current Circuit":"busbar connection","Temperature Compensation":"-25 ... +60 °C","according to IEC 60068-2-27":"15g / 11 ms","at AC-3e rated value maximum":"1 000 V","Substance Prohibitance (Date)":"07/01/2006","Design Of The Auxiliary Switch":"integrated","Design Of The Overload Release":"electronic","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"200 A","for AC motors at 500 V at 50 Hz":"30 ... 132 kW","for AC motors at 690 V at 50 Hz":"55 ... 160 kW","For Auxiliary And Control Circuit":"screw-type terminals","Between Main And Auxiliary Circuit":"690 V","Relative Humidity During Operation":"10 ... 95 %","With Type Of Assignment 2 Required":"gG: 315 A","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"8 kV","With Type Of Coordination 1 Required":"gG: 355 A, Class L: 601 A","for 3-phase motors at 400 V at 50 Hz":"30 ... 90 kW","Of The Auxiliary And Control Contacts":"M3","for AWG cables for auxiliary contacts":"2x (20 ... 14)","Between Auxiliary And Auxiliary Circuit":"300 V","due to burst according to IEC 61000-4-4":"2 kV (power ports), 1 kV (signal ports) corresponds to degree of severity 3","reference code according to IEC 81346-2":"F","Finely Stranded With Core End Processing":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","For Main Contacts With Screw-Type Terminals":"10 ... 12 N·m","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","For Auxiliary Contacts With Screw-Type Terminals":"0.8 ... 1.2 N·m","operational current at AC-3e at 400 V rated value":"200 A","Size Of Contactor Can Be Combined Company-Specific":"S6","electrostatic discharge according to IEC 61000-4-2":"6 kV contact discharge / 8 kV air discharge","Type Of Voltage Supply Via Input/Output Link Master":"No","contact rating of auxiliary contacts according to UL":"B600 / R300","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Arrangement Of Electrical Connectors For Main Current Circuit":"Top and bottom","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gG: 6 A","insulation voltage with degree of pollution 3 at AC rated value":"1 000 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"50 ... 200 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=239694&mlfb=3RB2056-2FC2-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB2056-2FC2-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What does the CLASS 20E trip class mean for motor protection?","answer":"CLASS 20E means the relay allows a 20-second cold start at 7.2× the set current before tripping — the standard for normal-duty motor starting where the load accelerates within that window. It matches the trip curve of most general-purpose induction motors."},{"question":"What is the \"tripped\" message output on this relay?","answer":"The integrated auxiliary switch outputs a dedicated \"tripped\" message when the relay activates on overload — a clean status signal to the PLC or annunciator without needing a separate auxiliary contact block."},{"question":"How do I get current pricing and availability for the 3RB2056-2FC2-ZX95?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote (RFQ) to confirm current pricing and availability — both are confirmed at quote time."},{"question":"What compliance documentation does the 3RB2056-2FC2-ZX95 carry?","answer":"The substance prohibition date of 07/01/2006 aligns with RoHS compliance. The relay is designed to meet the EU RoHS directive from that date. Additional documentation (IEC, UL) is available on request as part of the RFQ process."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2056-2FC2-ZX95","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RB2056-2FC2-ZX95 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}}