{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1346-1AP00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1346-1AP00","canonicalUrl":"https://aoctrl.com/siemens/3RT1346-1AP00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1346-1AP00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S3, order code 3RT1346-1AP00, rated 53 kW at 230 V 50 Hz, insulation voltage 1000 V, surge voltage 6 kV, screw-type terminals, snap-on mounting.","salesMarkdown":"## Siemens 3RT1346-1AP00 SIRIUS Power Contactor — Size S3, 53 kW at 230 V The Siemens 3RT1346-1AP00 is a SIRIUS-brand power contactor in size S3, rated at 53 kW at 230 V 50 Hz with an insulation voltage of 1000 V and surge voltage resistance of 6 kV. It is currently in the active lifecycle stage. The 53 kW rating at 230 V 50 Hz is the motor load it can switch under AC-3 duty at 60 °C ambient — the thermal derating is already baked into that figure. At 40 °C the minimum permissible cable cross-section is 50 mm²; at 60 °C it drops to 35 mm², which tells you the contactor's internal heat rise is the limiting factor, not the cable. The auxiliary contact ratings cover the control voltage range you are likely to see: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V. For high-duty-cycle applications like conveyor indexing or compressor cycling, that rate sets the practical ceiling — sustained operation above it will shorten contact life. The contactor accepts stranded conductors from 2x (10... 50 mm²) for the main circuit, and solid conductors from 2x (0.5... 1.5 mm²) up to 2x (0.75... 4 mm²) for the auxiliary circuit. The AWG equivalent for the main contacts is 2x (10... 1/0). The IP20 rating on the front with a cover or box terminal means the front face is finger-safe in a closed panel; the terminal itself is IP00, so live parts are exposed during wiring — standard practice for panel builders. ## Protection Coordination That is the maximum fuse size that still protects the contactor — if your panel uses a smaller fuse or a motor circuit protector, coordination may still hold, but 160 A is the verified limit. That is fast enough to limit let-through energy for most downstream components, but if you are coordinating with a sensitive solid-state overload relay, check the relay's own clearing time against the contactor's arc duration. The substance prohibition date of 05/01/2012 aligns with the original RoHS compliance deadline — the contactor meets RoHS and REACH requirements for the EU market.","metaTitle":"Siemens 3RT1346-1AP00 SIRIUS Power Contactor, Size S3, 53 kW","metaDescription":"Siemens 3RT1346-1AP00 SIRIUS power contactor, size S3, rated 53 kW at 230 V 50 Hz. Insulation voltage 1000 V, surge 6 kV. Screw terminals, snap-on DIN rail. Current lifecycle stage","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"139 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"93 mm","at AC":"10 ... 25 ms","Height":"146 mm","Stranded":"2x (10 ... 50 mm²)","at 50 Hz":"0.8 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP20; IP20 on the front with cover / box terminal","1 Rated Value":"50 Hz","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"1 000 1/h","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm and 75 mm standard mounting rail","Size Of Contactor":"S3","Solid Or Stranded":"2x (2.5 ... 16 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"10 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 50 Hz rated value":"230 V","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"50 mm²","at 60 °C minimum permissible":"35 mm²","Insulation Voltage Rated Value":"1 000 V","at 230 V at 60 °C rated value":"53 kW","at AWG cables for main contacts":"2x (10 ... 1/0)","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 160 A","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 250 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"4","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"4","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Thermal Short-Time Current Limited To 10 S":"600 A","Finely Stranded Without Core End Processing":"2x (10 ... 35 mm²)","apparent holding power of magnet coil at AC":"22 VA","apparent pick-up power of magnet coil at AC":"270 VA","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.68","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.27","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"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=350855&mlfb=3RT1346-1AP00","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1346-1AP00/alternatives.json"},"ai":{"faq":[{"question":"What is 3RT1346-1AP00's depth?","answer":"The depth is 139 mm, with a width of 93 mm and height of 146 mm."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1346-1AP00","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/3RT1346-1AP00 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}}