{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1BB40-ZW97","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1BB40-ZW97","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1BB40-ZW97","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1BB40-ZW97","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT1026-1BB40-ZW97, 24 VDC coil, screw terminals, 11 kW at 400 V AC-3, snap-on DIN rail mounting.","salesMarkdown":"The Siemens 3RT1026-1BB40-ZW97 is a SIRIUS S0-frame power contactor with a 24 VDC magnet coil, rated for motor switching at 11 kW on 400 V AC-3 duty and also 11 kW at 500 V and 690 V. It uses screw-type terminals for the main circuit and mounts via screw or snap-on onto a 35 mm DIN rail per EN 50022 — the S0 frame keeps the footprint compact at 45 mm wide, 85 mm tall, and 101 mm deep. The 24 VDC coil draws 5.4 W on both closing and holding — a steady-state load that matters for DC supply sizing in a panel with multiple contactors. The AC-3 motor rating of 11 kW at 400 V is the number that governs most three-phase motor switching; the same contactor also carries 11 kW at 500 V and 690 V, so it handles higher-voltage motors without derating the power. For resistive or general-purpose loads, the AC-12 rating tops out at 10 A. Switching capacity on the DC side covers control-circuit loads: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. The AC-4 rating at 400 V is 15.5 A — that's the inching or plugging duty cycle, lower than AC-3 because of the heavier arc stress during frequent reversals. The operating temperature range of -25 to +60 °C covers most indoor industrial panels, though the coil's minimum pickup voltage (0.8 × rated) and dropout (0.1 × rated) should be checked against the actual DC supply regulation. Side-by-side mounting is allowed with a 6 mm gap to the side — no derating mentioned for adjacent units, but the gap ensures airflow. The main circuit screw terminals accept 2x (1 to 2.5 mm²) solid or stranded, up to 2x 10 mm² maximum. The auxiliary/coil terminals take 2x (0.5 to 1.5 mm²) solid, up to 2x 4 mm². AWG equivalents are 2x (16 to 12) for the main and 2x (16 to 14) for the coil circuit. These values guide the selection of branch-circuit protection in the panel.","metaTitle":"Siemens 3RT1026-1BB40-ZW97 SIRIUS S0 Power Contactor, 24 VDC","metaDescription":"Siemens SIRIUS S0 power contactor 3RT1026-1BB40-ZW97 with 24 VDC coil. Rated 11 kW at 400 V AC-3, 10 A AC-12. Screw terminals, snap-on DIN rail. Current lifecycle. Quoted to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"101 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"85 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.8","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"1.1","Size of contactor":"S0","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 500 V rated value":"11 kW","at 690 V rated value":"11 kW","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","at AC-2 at 400 V rated value":"11 kW","at AC-4 at 400 V rated value":"15.5 A","Closing power of magnet coil at DC":"5.4 W","Holding power of magnet coil at DC":"5.4 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 35 A","at AWG conductors for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","With Type Of Coordination 1 Required":"fuse gL/gG: 100 A","Reference code acc. to DIN EN 81346-2":"Q","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","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","at ambient temperature 40 °C rated value":"40 A","Type of voltage of the control supply voltage":"DC","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","Of The Contactor With Added Electronics-Compatible 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=266419&mlfb=3RT1026-1BB40-ZW97","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1BB40-ZW97/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RT1026-1BB40-ZW97?","answer":"Within the Siemens SIRIUS S0 family, the 3RT1026-1AB00 uses the same S0 frame and AC-3 power ratings but with an AC coil (24 VAC 50/60 Hz) instead of the 24 VDC coil on the -1BB40-ZW97. The 3RT1023-1AL20 is a smaller S00-frame contactor with lower motor ratings — it won't drop into the same panel without checking the mounting rail and power wiring. For a direct DC-coil replacement, the -1BB40 suffix is the one to match."},{"question":"What compliance documentation does Siemens provide for 3RT1026-1BB40-ZW97?","answer":"Siemens SIRIUS contactors carry CE marking for the European market and are designed to meet IEC/EN 60947-4-1. UL and CSA listings are typical for the series, though the specific file numbers should be confirmed from the product certificate. RoHS and REACH declarations are available from Siemens' documentation portal."},{"question":"Where can I buy 3RT1026-1BB40-ZW97 and how is it quoted?","answer":"This part is sourced through independent industrial-automation distribution and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock figures or lead-time numbers are published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1BB40-ZW97","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/3RT1026-1BB40-ZW97 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}}