{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1044-3AP06-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1044-3AP06-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT1044-3AP06-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1044-3AP06-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S3 power contactor, 3RT1044-3AP06-ZX95, screw-type terminals, 55 A at AC-4 400 V, 30 kW at AC-2 400 V, 37 kW at 500 V, IP20 front, snap-on 35/75 mm rail.","salesMarkdown":"## SIRIUS S3 power contactor — panel-fit and ratings For AC-2 duty (slip-ring motor starting) it is rated 30 kW at 400 V, and at 500 V it handles 37 kW — a solid match for 50 Hz supply lines common in European and Asian plants. Dimensions are 146 mm high, 90 mm wide, and 139 mm deep — a standard S3 footprint that drops into existing panel layouts specified for this frame size. ## Wire termination and environmental range Main circuit screw terminals accept solid conductors 2x (0.25 to 2.5 mm²) and stranded conductors 2x (10 to 50 mm²), with an intermediate solid-or-stranded range of 2x (2.5 to 16 mm²). This covers both control wiring and power cable sizes typical for a 37 kW motor circuit. Maximum switching rates vary by duty: 1 000 cycles/hour at AC-1 and AC-3, 400/h at AC-2, and 300/h at AC-4 — respect the AC-4 limit for reversing applications to avoid premature wear. ## Coil and auxiliary ratings The contactor's coil operates at 50 Hz with a voltage tolerance of 0.8 to 1.1 times the rated value. Arcing time is 10 to 15 ms, and the make/break time at AC is 10 to 19 ms — consistent with S3-frame switching dynamics. Auxiliary contact ratings at 24 V are 10 A, derating to 6 A at 230 V and 3 A at 400 V. For DC switching, the 24 V rating is 10 A, 60 V is 2 A, 110 V is 1 A, 220 V is 0.3 A, and 690 V is 18.6 kW — the DC curve drops sharply, so verify the load type if switching DC solenoids or brake coils. Compliance documentation typically includes CE marking per low-voltage directive, UL/CSA recognition for North American installations, and REACH SVHC declarations. Specific certificate numbers should be confirmed at quote time against the target jurisdiction.","metaTitle":"Siemens 3RT1044-3AP06-ZX95 SIRIUS S3 Power Contactor, 55 A A","metaDescription":"Siemens SIRIUS S3 power contactor 3RT1044-3AP06-ZX95, 55 A at AC-4 400 V, 30 kW AC-2. Screw terminals, snap-on DIN rail. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"139 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"90 mm","at AC":"10 ... 19 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","at AC-2 maximum":"400 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"300 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","at 500 V rated value":"37 kW","at 690 V rated value":"18.6 kW","Side-By-Side Mounting":"Yes","at 1000 V rated value":"30 W","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"30 kW","at AC-4 at 400 V rated value":"55 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"35 mm²","at 60 °C minimum permissible":"35 mm²","Insulation Voltage Rated Value":"1 000 V","at 230 V at 60 °C rated value":"34 kW","at 690 V at 60 °C rated value":"102 kW","at 1000 V at 60 °C rated value":"66 W","at AWG cables for main contacts":"2x (10 ... 1/0)","For Auxiliary And Control Circuit":"spring-loaded terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 125 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 (24 ... 14)","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Thermal Short-Time Current Limited To 10 S":"600 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","apparent holding power of magnet coil at AC":"21 VA","apparent pick-up power of magnet coil at AC":"218 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":"0.61","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.26","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":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","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=29885&mlfb=3RT1044-3AP06-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1044-3AP06-ZX95/alternatives.json"},"ai":{"faq":[{"question":"Will 3RT1044-3AP06-ZX95 drop into a panel specified around 3RT1044-1FB46 without rewiring?","answer":"Both are S3-frame SIRIUS contactors with the same 146 x 90 x 139 mm footprint and screw-type main terminals, so the mechanical fit and rail mounting are identical. The -3AP06 variant carries different coil voltage and auxiliary contact configurations — verify the coil rating on the nameplate before swapping, but the panel cutout and wiring layout should not require changes."},{"question":"What compliance documentation does this brand provide for 3RT1044-3AP06-ZX95?","answer":"As a current SIRIUS-series product, it carries CE marking for the EU Low Voltage Directive and is designed to meet RoHS and REACH requirements. UL and CSA recognition are standard for the SIRIUS contactor family; specific certificate numbers and declaration of conformity are available on request at quote time."},{"question":"Where can I buy 3RT1044-3AP06-ZX95 and how is it quoted?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for volume or single-unit requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1044-3AP06-ZX95","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/3RT1044-3AP06-ZX95 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}}