{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2018-2AB01-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2018-2AB01-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT2018-2AB01-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2018-2AB01-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT2018-2AB01-ZX95, Size S00, 24 VDC coil, spring-type terminals, 73 mm depth, 45 mm width.","salesMarkdown":"It mounts via screw or snap-on onto a 35 mm DIN rail per EN 60715, and the Size S00 footprint (70 mm high, 45 mm wide, 73 mm deep) keeps it compact for dense panel layouts. The coil is 24 VDC with spring-type terminals, so no screwdriver is needed for the coil wiring — just strip and push. The main contacts are rated for 20 to 12 A (AC-3 duty), which covers small to medium motor loads up to 2 hp at 230 V. The AC-3 switching frequency maxes out at 750 operations per hour — adequate for most conveyor and pump cycles, but if you're doing frequent jogging or reversing (AC-4), that drops to 250 ops/h, so plan your duty cycle accordingly. The auxiliary contact block is built in, with breaking capacities ranging from 10 A at 24 V down to 0.2 A at 440 V — verify your pilot circuit voltage against the table to ensure clean dropout. ## Wiring and Clearance Notes For ventilation, maintain 10 mm clearance upward, downward, and forward, plus 6 mm at the sides — these are minimums for heat dissipation at full rated current.","metaTitle":"Siemens 3RT2018-2AB01-ZX95 SIRIUS Power Contactor, Size S00,","metaDescription":"Siemens SIRIUS 3RT2018-2AB01-ZX95 power contactor, size S00, 24 VDC coil, spring-type terminals. Rated for motor loads up to 2 hp at 230 V. Current lifecycle status: active product","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"0.5 ... 4 mm²","Width":"45 mm","at AC":"4 ... 15 ms","title":"3RT2018-2AB01-ZX95","Height":"70 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"0.5 ... 4 mm²","at 50 Hz":"0.25","at 60 Hz":"0.25","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","description":"CONTACTOR, AC-3, 7.5KW/400V, 1NO, AC 24V 50/60HZ, 3-POLE, SZ S00, 120 PIECES SPRING-LOADED TERMINAL","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Spring-type terminals","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"750 1/h","at AC-3 maximum":"750 1/h","at AC-4 maximum":"250 1/h","lifecycle_stage":"current","Auxiliary Switch":"Yes","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715","at AC-3e maximum":"750 1/h","For Main Contacts":"20 ... 12","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":"S00","Solid Or Stranded":"2x (0,5 ... 4 mm²)","Product Brand Name":"SIRIUS","Product Designation":"Power contactor","at 24 V rated value":"10 A","at 48 V rated value":"2 A","at 60 V rated value":"2 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 125 V rated value":"0.9 A","at 220 V rated value":"0.3 A","at 230 V rated value":"2 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.2 A","at 480 V rated value":"14 A","at 50 Hz rated value":"24 V","at 500 V rated value":"2 A","at 60 Hz rated value":"24 V","at 600 V rated value":"11 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 12","For Main Current Circuit":"spring-loaded terminals","at 110/120 V rated value":"1 hp","at 200/208 V rated value":"3 hp","at 220/230 V rated value":"5 hp","at 460/480 V rated value":"10 hp","at 575/600 V rated value":"10 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","Safety-Related Switching On":"Yes","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"3 W","at AC-2 at 400 V rated value":"7.5 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"11.5 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2009","at AWG cables for main contacts":"2x (20 ... 12)","Of Auxiliary Circuit Rated Value":"6 kV","at AC-5a up to 690 V rated value":"19.4 A","at AC-5b up to 400 V rated value":"13.2 A","For Auxiliary And Control Circuit":"spring-loaded terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA)","Without Load Current Share Typical":"5.7 W","At Contactor For Auxiliary Contacts":"Spring-type terminals","With Type Of Coordination 1 Required":"gG: 50A (690V,100kA), aM: 25A (690V,100kA), BS88: 50A (415V,80kA)","at AWG cables for auxiliary contacts":"2x (20 ... 12)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"1 W","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.5 ... 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)","mirror contact according to IEC 60947-4-1":"Yes; with 3RH29","with low demand rate according to SN 31920":"40 %","Finely Stranded Without Core End Processing":"2x (0.5 ... 2.5 mm²)","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"AC","Limited To 1 S Switching At Zero Current Maximum":"300 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"169 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"128 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"92 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"74 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / Q600","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":"gG: 10 A (500 V, 1 kA)","minimum cross-section in main circuit at maximum AC-1 rated value":"4 mm²","number of NO contacts for auxiliary contacts instantaneous contact":"1","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/29ab648206d9a8d3a74c276350ec7474.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=358161&mlfb=3RT2018-2AB01-ZX95"},"ai":{"faq":[{"question":"What is the closest functional alternative to the 3RT2018-2AB01-ZX95?","answer":"The 3RT2018-2AB02-ZX95 is the closest functional peer. Both are Size S00 SIRIUS contactors with the same frame dimensions and mounting. The key difference is the coil voltage: the -2AB01 variant uses 24 VDC, while the -2AB02 uses a different coil voltage. If your control circuit is 24 VDC, this is the correct variant; otherwise, verify the coil voltage before substituting."},{"question":"Will the 3RT2018-2AB01-ZX95 drop into a panel specified for the 3RT2018-2AB02-ZX95 without rewiring?","answer":"Mechanically yes — both share the same Size S00 footprint and DIN-rail mounting. Electrically, only if the coil voltage matches. The -2AB01 requires 24 VDC; if the panel was wired for a different coil voltage (e.g., 230 VAC), the coil circuit would need rewiring. The main power and auxiliary wiring are identical."},{"question":"What wire sizes does the 3RT2018-2AB01-ZX95 accept?","answer":"The spring-type terminals accept solid or stranded wire from 0.5 to 4 mm², and can take two conductors of the same size per clamp."},{"question":"What is the physical size of the 3RT2018-2AB01-ZX95?","answer":"It measures 70 mm high, 45 mm wide, and 73 mm deep, fitting the Size S00 frame."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2018-2AB01-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/3RT2018-2AB01-ZX95 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}}