{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-1BB44-3MA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-1BB44-3MA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-1BB44-3MA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1BB44-3MA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens 3RT1015-1BB44-3MA0 3-pole contactor, 3.3 W coil, 24 V DC, screw-type terminals, IP20, DIN-rail mount, size S00.","salesMarkdown":"## Overview The 3RT1015-1BB44-3MA0 is a Siemens 3-pole contactor, size S00, with a 3.3 W DC coil rated at 24 V DC. The 3-pole contactor uses a 24 V DC coil drawing 3.3 W. Switching current depends on load type and voltage. The screw-type terminals accept 2x (0.5...1.5 mm²) solid or 2x (0.75...2.5 mm²) finely stranded wire, with a maximum of 2x (0.75...4 mm²). The auxiliary contact block provides 2x (20...16), 2x (18...14), and 1x 12 contacts. Short-circuit protection for the main circuit requires a 35 A gL/gG fuse (type 1 coordination), and for the auxiliary circuit a 10 A gL/gG fuse. ## Applications This contactor is suited for switching motors, resistive loads, and lighting circuits in industrial control panels, conveyor systems, pumps, and HVAC equipment. The 3-pole configuration covers three-phase motor starting and disconnection, while the DC coil allows direct integration with PLC or relay logic outputs without an AC interface. Within the Siemens IRC (Industrial Controls) portfolio the 3RT1015-1BB44-3MA0 belongs to the S00 frame size, the smallest in the 3RT series, intended for low-power motor loads and auxiliary switching. It competes with other S00 contactors but is distinguished by its 24 V DC coil and 3.3 W power consumption, making it a common choice for 24 V DC control systems in panel building. ## Pricing & sourcing The 3RT1015-1BB44-3MA0 is a current-production Siemens contactor. Confirm availability and pricing via RFQ.","metaTitle":"Siemens 3RT1015-1BB44-3MA0 3-pole contactor, 3.3 W, 24 V DC","metaDescription":"Siemens 3RT1015-1BB44-3MA0 3-pole contactor: 3.3 W coil, 24 V DC, screw terminals, IP20, DIN-rail mount, size S00.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Contactors"],"specifications":{"Depth":"111 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"57.5 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.85","Of The Terminal":"IP20","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Full-Scale Value":"1.1","Size Of Contactor":"S00","Solid Or Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 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":"30 000 000","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 500 V rated value":"3.5 kW","at 690 V rated value":"4 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"3 kW","at AC-4 at 400 V rated value":"6.5 A","Substance Prohibitance (Date)":"01.07.2006 00:00:00","at AWG cables for main contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","closing power of magnet coil at DC":"3.3 W","holding power of magnet coil at DC":"3.3 W","reference code acc. to IEC 81346-2":"Q","With Type Of Coordination 1 Required":"fuse gL/gG: 35 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)","Type Of Voltage Of The Control Supply Voltage":"DC","Required Spacing For Grounded Parts At The Side":"6 mm","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":"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":"$192.84","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=516271&mlfb=3RT1015-1BB44-3MA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1BB44-3MA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-1BB44-3MA0","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/3RT1015-1BB44-3MA0 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}}