{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB3036-1UX1","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB3036-1UX1","canonicalUrl":"https://aoctrl.com/siemens/3RB3036-1UX1","factsUrl":"https://aoctrl.com/api/mcp/products/3RB3036-1UX1","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB3036-1UX1, S2 size, 50 A thermal current, Trip Class 10E, 55 mm wide, 109 mm deep.","salesMarkdown":"The Siemens 3RB3036-1UX1 is a SIRIUS solid-state overload relay in the S2 frame size, rated for a thermal current of 50 A and a Trip Class 10E. ## Signal contact and tripped indication This relay includes an integrated auxiliary switch with a dedicated signal contact for the tripped state. The contact is rated for switching at multiple voltages: 2 A at 24 V, 4 A at 120 V, 3 A at 230 V, and 0.55 A at 60 V. The note on the part specifies that this contact is \"for message 'tripped'\" — meaning it closes (or opens) to signal the overload condition to a PLC or indicator lamp, not for direct motor control. That distinction matters: you wire it into a 24 VDC digital input, not the contactor coil circuit. Dimensions are 55 mm wide, 81 mm high, and 109 mm deep. The relay accepts 2× (0.25 to 1.5 mm²) solid or stranded conductors per terminal, with a Pozidriv PZ2 screwdriver tip required. It can be mounted in any position, operates from -25 °C to +60 °C, and is rated for 15g shock resistance (11 ms pulse) per IEC 60068-2-27. The signaling contact in the tripped position is rated for 8g / 11 ms.","metaTitle":"Siemens 3RB3036-1UX1 SIRIUS Solid-State Overload Relay, Trip","metaDescription":"Siemens 3RB3036-1UX1 SIRIUS solid-state overload relay, 50 A thermal current, Trip Class 10E. S2 size, 55 mm wide. Currently in 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":"109 mm","Solid":"2x (0.25 ... 1.5 mm²)","Width":"55 mm","title":"3RB3036-1UX1","Height":"81 mm","at 24 V":"2 A","at 60 V":"0.55 A","Per Pole":"0.03 W","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 10E","Rated Value":"690 V","description":"Overload relay 12.5...50 A Electronic For motor protection Size S2, Class 10E Stand-alone installation Main circuit: Straight-through transformer Auxiliary circuit: Spring-type terminal Manual-Automatic-Reset","During Storage":"-40 ... +80 °C","Thermal Current":"50 A","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Fastening Method":"stand-alone installation","Shock Resistance":"15g / 11 ms","Mounting Position":"any","Solid Or Stranded":"2x (0,25 ... 1,5 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":"50 A","at 600 V rated value":"50 A","Size Of Overload Relay":"S2","For Main Current Circuit":"straight-through transformers","Temperature Compensation":"-25 ... +60 °C","Design Of Screwdriver Shaft":"Diameter 5 to 6 mm","Size Of The Screwdriver Tip":"Pozidriv PZ 2","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":"690 V","Substance Prohibitance (Date)":"10/15/2014","Design Of The Auxiliary Switch":"integrated","Design Of The Overload Release":"electronic","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"50 A","for AC motors at 500 V at 50 Hz":"11 ... 30 kW","for AC motors at 690 V at 50 Hz":"11 ... 45 kW","For Auxiliary And Control Circuit":"spring-loaded terminals","Between Main And Auxiliary Circuit":"690 V","Relative Humidity During Operation":"10 ... 95 %","With Type Of Assignment 2 Required":"gG: 200 A","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gG: 250 A","at AWG cables for auxiliary contacts":"1x (24 ... 16), 2x (24 ... 16)","for 3-phase motors at 400 V at 50 Hz":"7.5 ... 22 kW","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":"2x (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Finely Stranded Without Core End Processing":"2x (0.25 ... 1.5 mm²)","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"1","number of NO contacts for auxiliary contacts":"1","operational current at AC-3e at 400 V rated value":"50 A","Size Of Contactor Can Be Combined Company-Specific":"S2","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":"690 V","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","power loss [W] for rated value of the current at AC in hot operating state":"0.1 W","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"12.5 ... 50 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/cc275cbf2f1c98040145ac9bac03b57f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=380784&mlfb=3RB3036-1UX1"},"ai":{"faq":[{"question":"What does the 'for message tripped' note mean on this relay?","answer":"The integrated auxiliary switch contact is designated for signaling the tripped state to a control system — it is not rated for switching the motor contactor coil directly. Use it to drive a PLC digital input or indicator lamp."},{"question":"What is the depth of the 3RB3036-1UX1?","answer":"The depth is 109 mm, with a width of 55 mm and height of 81 mm, fitting the S2 overload relay footprint."},{"question":"Where can I buy the 3RB3036-1UX1 and get current pricing?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB3036-1UX1","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/3RB3036-1UX1 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}}