{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB2163-4MC2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB2163-4MC2","canonicalUrl":"https://aoctrl.com/siemens/3RB2163-4MC2","factsUrl":"https://aoctrl.com/api/mcp/products/3RB2163-4MC2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB2163-4MC2, 630 A rated thermal current, adjustable trip classes 5E/10E/20E/30E, for contactor mounting or standalone installation.","salesMarkdown":"The Siemens SIRIUS 3RB2163-4MC2 is a solid-state overload relay sized for motor protection up to 630 A rated thermal current, with a maximum operating voltage of 1 000 V. The electronic overload release means no bimetal drift over time — trip accuracy stays consistent across the operating range. Adjustable trip classes 5E, 10E, 20E, and 30E let you match the relay to the motor's starting profile: a 5E setting trips fast for short-start pumps or compressors, while 30E accommodates high-inertia loads like centrifuges or large fans without nuisance tripping during start-up. The 630 A rating holds at both 480 V and 600 V, so it covers common North American and IEC voltage levels without derating. Operating frequency is 50... 60 Hz, covering standard line frequencies worldwide. Mounts directly onto a contactor or as a standalone unit in any position — no orientation restrictions. Fastening method is contactor mounting or standalone installation, with busbar connection for the main current circuit. Dimensions are 120 mm wide, 119 mm high, 155 mm deep — fits standard S10 and S12 overload relay footprints. Wiring accepts 1x (0.5... 4 mm²) or 2x (0.5... 2.5 mm²) solid or stranded conductors on the auxiliary terminals. Shock resistance is 15g / 11 ms for the main body; the signaling contact in tripped position withstands 8g / 11 ms. Vibration resistance covers 1-6 Hz at 15 mm amplitude and 6-500 Hz at 20 m/s² over 10 cycles — robust enough for motor-starter panels on pumps or conveyors. ## What the 'tripped' note means for diagnostics The part carries a note \"for message 'tripped'\" — this refers to the signaling contact that changes state when the relay trips. The auxiliary switch is designed to output a clear 'tripped' signal back to the PLC or annunciator, so a maintenance technician can identify which motor in a bank has faulted without opening the panel. Contact ratings vary by voltage: 4 A at 120 V, 3 A at 230 V, 2 A at 24 V, and lower ratings at higher DC voltages.","metaTitle":"Siemens SIRIUS 3RB2163-4MC2 Solid-State Overload Relay, 630","metaDescription":"Siemens SIRIUS 3RB2163-4MC2 solid-state overload relay, 630 A rated thermal current, adjustable trip classes 5E-30E. Active production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","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","title":"3RB2163-4MC2","Height":"119 mm","Maximum":"IMotor < upper current setting value x 3.5","Minimum":"IMotor > lower current setting value","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 5E, 10E, 20E and 30E adjustable","Rated Value":"1 000 V","description":"Overload relay 160...630 A for motor protection Size S10/S12, CLASS 5...30E Contactor mounting/stand-alone installation Main circuit: busbar connection Auxiliary circuit: Screw terminal Manual-Automatic-Reset Internal ground fault detection","During Storage":"-40 ... +80 °C","Thermal Current":"630 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":"M10","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":"630 A","at 600 V rated value":"630 A","Size Of Overload Relay":"S10, S12","For Main Current Circuit":"busbar connection","Temperature Compensation":"-25 ... +60 °C","according to IEC 60068-2-27":"15g / 11 ms; Signaling contact 97 / 98 in position \"Tripped\": 8g / 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":"630 A","for AC motors at 500 V at 50 Hz":"132 ... 400 kW","for AC motors at 690 V at 50 Hz":"160 ... 560 kW","for remote-reset function at DC":"24 V","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: 630 A","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"8 kV","With Type Of Coordination 1 Required":"gG: 800 A, Class L: 1600 A","at AWG cables for auxiliary contacts":"2x (20 ... 14)","for 3-phase motors at 400 V at 50 Hz":"90 ... 355 kW","Of The Auxiliary And Control Contacts":"M3","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":"20 ... 22 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":"630 A","Size Of Contactor Can Be Combined Company-Specific":"S10, S12","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","Response Time Of The Grounding Protection In Settled State":"1 000 ms","Response Value Current Of The Grounding Protection Minimum":"0.75 x IMotor","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":"160 ... 630 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/f3f64c5fe97c1b47d8dd35aa3cfac2b7.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=387539&mlfb=3RB2163-4MC2"},"ai":{"faq":[{"question":"What does the 'for message tripped' note mean?","answer":"The auxiliary switch integrated into the relay provides a dedicated signaling contact that outputs a 'tripped' status. This lets a PLC or indicator light show exactly which overload relay has faulted, without needing to read the relay's mechanical flag."},{"question":"What are the key ratings for this overload relay?","answer":"Rated thermal current is 630 A, maximum operating voltage is 1 000 V, and trip classes 5E, 10E, 20E, and 30E are adjustable. Operating temperature range is -25 to +60 °C."},{"question":"What compliance documentation is available?","answer":"The part has a substance prohibitance date of 07/01/2006, indicating RoHS compliance from that date. The SIRIUS series carries CE, UL, and CSA certifications as standard for the product family."},{"question":"How is the 3RB2163-4MC2 mounted?","answer":"It can be mounted directly onto a contactor or installed standalone in any position. The main current circuit uses busbar connection, and dimensions are 120 x 119 x 155 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB2163-4MC2","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/3RB2163-4MC2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}