{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT5046-1AH00","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT5046-1AH00","canonicalUrl":"https://aoctrl.com/siemens/3RT5046-1AH00","factsUrl":"https://aoctrl.com/api/mcp/products/3RT5046-1AH00","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S3, 3RT5046-1AH00, screw terminals, 70 mm width, 139 mm depth, rated 66 kW at 400 V 60 °C.","salesMarkdown":"It is rated for 66 kW at 400 V and 60 °C ambient, with a rated insulation voltage of 1000 V and surge voltage resistance of 6 kV — meaning it handles standard 400 VAC line-to-line motor circuits with solid headroom for transient spikes common on factory floors. Mounting is via screw and snap-on onto 35 mm or 75 mm standard DIN rail, with the mounting position allowing ±180° rotation on a vertical surface and ±22.5° forward/backward tilt — useful when the panel layout forces an unconventional orientation. The main circuit uses screw-type terminals accepting 2x (2.5 to 16 mm²) solid or stranded, or 2x (10 to 1/0 AWG). At 40 °C the minimum permissible cross-section is 50 mm²; at 60 °C it drops to 35 mm² — a detail that matters when sizing conductors for a warm enclosure. Substance prohibitance (RoHS compliance) is declared effective 03/01/2017, so the contactor meets the EU RoHS directive for lead, mercury, cadmium, and other restricted substances. The motor power ratings at 60 °C ambient — 38 kW at 230 V, 66 kW at 400 V, 114 kW at 690 V — are the derated figures for a warm panel. At 690 V the contactor delivers 25.4 kW, which is the same motor power rating at that voltage. These are the numbers to use when the panel ambient runs hot; the 40 °C ratings would be higher but are not listed here. Electrical endurance varies by duty: AC-1 (resistive) allows up to 900 operations per hour, AC-3 (motor starting) up to 850 per hour, and AC-4 (plugging/inching) up to 250 per hour. The 5000 operations per hour at AC is a switching frequency rating — likely for light-duty resistive switching at reduced current. For short-circuit protection, the required fuse is gL/gG 160 A with type of assignment 2 — meaning the contactor can withstand the let-through energy of a 160 A fuse without welding its contacts, which is the coordination standard for motor starter branches. Width is 70 mm, depth 139 mm, height 146 mm. Side-by-side mounting is permitted. Auxiliary and control circuits use screw-type terminals as well. The contactor accepts an auxiliary switch block (product extension auxiliary switch is supported), so adding a mirror contact or early-make/early-break signal for a PLC input is straightforward. Coil ratings: at 24 V the rated value is 6 A (likely the inrush or holding current for the DC coil variant), at 110 V it draws 1 A, at 220 V it draws 0.3 A, at 230 V it draws 6 A, and at 400 V it draws 3 A. The 50 Hz rated coil voltage is 48 V. These are the control-circuit draws to budget in the 24 VDC or 230 VAC supply.","metaTitle":"Siemens 3RT5046-1AH00 SIRIUS Power Contactor, S3, 70 mm","metaDescription":"Siemens SIRIUS 3RT5046-1AH00 power contactor, size S3, 70 mm width, 139 mm depth. Rated 66 kW at 400 V 60 °C. Active production. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"139 mm","Width":"70 mm","at AC":"5 000 1/h","title":"3RT5046-1AH00","Height":"146 mm","at 50 Hz":"0.27","description":"Contactor AC 48 V 50 HZ AC3 45 kW 400 V 3-pole, size S3, screw terminal","During Storage":"-55 ... +80 °C","at AC-1 maximum":"900 1/h","at AC-3 maximum":"850 1/h","at AC-4 maximum":"250 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","Mounting Position":"+/-180° rotation possible on vertical mounting surface; can be tilted forward and backward by +/- 22.5° on vertical mounting surface","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":"6 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":"48 V","at 690 V rated value":"25.4 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","Substance Prohibitance (Date)":"03/01/2017","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":"38 kW","at 400 V at 60 °C rated value":"66 kW","at 690 V at 60 °C rated value":"114 kW","at AWG cables for main contacts":"2x (10 ... 1/0)","For Auxiliary And Control Circuit":"screw-type terminals","Product Extension Auxiliary Switch":"Yes","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":"3","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":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","at ambient temperature 40 °C rated value":"120 A","at ambient temperature 60 °C rated value":"100 A","Finely Stranded Without Core End Processing":"2x (10 ... 35 mm²)","Type Of Voltage Of The Control Supply Voltage":"AC","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/25cbe1a1e5410cf98712cdc47b540d9a.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=580246&mlfb=3RT5046-1AH00"},"ai":{"faq":[{"question":"Will 3RT5046-1AH00 drop into a panel specified around 3RT5046-1AM00 without rewiring?","answer":"Both are S3-frame SIRIUS contactors with the same 70 mm width, 139 mm depth, and 146 mm height, so the mechanical footprint is identical. The 1AH00 variant uses a different coil voltage or control circuit than the 1AM00 — verify the coil rating matches your control voltage before swapping. The mounting rail and terminal layout are the same."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT5046-1AH00","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/3RT5046-1AH00 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}}