{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RB3016-2RE0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RB3016-2RE0","canonicalUrl":"https://aoctrl.com/siemens/3RB3016-2RE0","factsUrl":"https://aoctrl.com/api/mcp/products/3RB3016-2RE0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state overload relay, 3RB3016-2RE0, CLASS 20E, 0.4 A thermal current, size S00, 45 mm wide, 90 mm deep, spring-loaded terminals.","salesMarkdown":"The Siemens 3RB3016-2RE0 is a SIRIUS solid-state overload relay, size S00, designed to protect three-phase motors against overload and phase failure. It is an electronic overload release, meaning it uses a microprocessor to model motor heating rather than a bimetallic strip, giving it better accuracy and repeatability over the temperature range. Rated thermal current is 0.4 A at 690 V, with a CLASS 20E trip curve — that means it will trip in 20 seconds at 7.2× rated current, matching the standard for motor starting with moderate inertia loads like fans or centrifugal pumps. The 0.4 A rating applies at both 480 V and 600 V, so derating for voltage is not a concern here. The relay mounts directly onto a contactor (contactor mounting), not on a DIN rail. It snaps onto the S00 frame contactor, which saves panel width — the relay itself is 45 mm wide and 90 mm deep, so the combined contactor-plus-relay stack stays within the contactor's footprint. ## Auxiliary contact ratings and wiring An integrated auxiliary switch provides the signaling contact for the tripped state. The contact ratings are given across several voltages: 2 A at 24 V, 4 A at 120 V, 3 A at 230 V, and 0.4 A at 480/600 V. At 24 VDC, the contact is rated 2 A; at 60 VDC it drops to 0.55 A, and at 125 VDC to 0.3 A. The main circuit terminals are spring-loaded, accepting 2× (0.25 to 1.5 mm²) solid or stranded wire. The screwdriver shaft diameter for the auxiliary terminals is 5 to 6 mm, with a Pozidriv PZ 2 tip. Storage and transport range is -40 to +80 °C. The relay is rated for 15g shock at 11 ms, and vibration resistance per IEC 60068-2-27: 1–6 Hz at 15 mm amplitude, 6–500 Hz at 20 m/s² for 10 cycles. The note on the product line reads 'for message \"tripped\"' — this is the auxiliary contact that changes state when the relay trips, providing a discrete signal to a controller or annunciator.","metaTitle":"Siemens 3RB3016-2RE0 SIRIUS solid-state overload relay, CLAS","metaDescription":"Siemens 3RB3016-2RE0 SIRIUS solid-state overload relay, CLASS 20E, 0.4 A thermal current, size S00, 45 mm wide, 90 mm deep. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Overload Relays"],"specifications":{"Note":"for message \"tripped\"","Depth":"90 mm","Solid":"2x (0.25 ... 1.5 mm²)","Width":"45 mm","Height":"72 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 20E","Rated Value":"690 V","During Storage":"-40 ... +80 °C","Thermal Current":"0.4 A","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","During Transport":"-40 ... +80 °C","Fastening Method":"Contactor mounting","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":"0.4 A","at 600 V rated value":"0.4 A","Size Of Overload Relay":"S00","For Main Current Circuit":"spring-loaded terminals","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\": 9g / 11 ms","at AC-3e rated value maximum":"690 V","Substance Prohibitance (Date)":"10/01/2009","Design Of The Auxiliary Switch":"integrated","Design Of The Overload Release":"electronic","Operating Frequency Rated Value":"50 ... 60 Hz","Operational Current Rated Value":"0.4 A","for AC motors at 500 V at 50 Hz":"0.04 ... 0.12 kW","for AC motors at 690 V at 50 Hz":"0.06 ... 0.18 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: 4 A","Display Version For Switching Status":"Slide switch","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"gG: 35 A, RK5: 3 A","for 3-phase motors at 400 V at 50 Hz":"0.04 ... 0.09 kW","for AWG cables for auxiliary contacts":"1x (24 ... 16), 2x (24 ... 16)","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":"0.4 A","Size Of Contactor Can Be Combined Company-Specific":"S00","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":"0.1 ... 0.4 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/a442328a0881f8cfcd3157ab2b88160a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=237272&mlfb=3RB3016-2RE0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RB3016-2RE0/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of the 3RB3016-2RE0?","answer":"The depth is 90 mm. Width is 45 mm, height is 72 mm."},{"question":"Will the 3RB3016-2RE0 drop into a panel specified around the 3RT1016-2AP02 without rewiring?","answer":"The 3RT1016-2AP02 is a contactor, not an overload relay. The 3RB3016-2RE0 mounts directly onto S00 contactors (like the 3RT1016 series), so it will mechanically fit. However, the wiring terminals are spring-loaded on the 3RB3016-2RE0, while the 3RT1016-2AP02 uses screw terminals — you may need to re-terminate the main circuit wires if the existing panel uses ferrules or different wire sizes. The auxiliary contact wiring is independent."},{"question":"What compliance documentation does Siemens provide for the 3RB3016-2RE0?","answer":"The evidence includes a substance prohibitance date of 10/01/2009, indicating RoHS compliance. Standard Siemens documentation for this series includes a CE declaration, UL/CSA file, and IEC 60947-4-1 test reports. The relay is designed to IEC 60068-2-27 for shock and vibration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RB3016-2RE0","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/3RB3016-2RE0 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}}