{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT2016-1BJ81","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT2016-1BJ81","canonicalUrl":"https://aoctrl.com/siemens/3RT2016-1BJ81","factsUrl":"https://aoctrl.com/api/mcp/products/3RT2016-1BJ81","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT2016-1BJ81, Size S00, 72 V DC coil, screw-type terminals, 10 A at 24 V DC, 1 hp at 230 V, DIN rail mount.","salesMarkdown":"## Siemens 3RT2016-1BJ81 — SIRIUS Power Contactor, Size S00, 72 V DC Coil It carries a 72 V DC coil with screw-type terminals and is rated for 10 A at 24 V DC and 1 hp at 230 V. ## Ratings and Performance DC switching ratings: 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V. The AC motor rating is 1 hp at 230 V. Maximum mechanical service life is 30,000,000 operations. Maximum switching frequency varies by duty: 1,000 cycles/hour for AC-1, 750 cycles/hour for AC-2, AC-3, and AC-3e, and 250 cycles/hour for AC-4. Pick-up voltage is 0.8 of rated value, drop-out is 1.1 of full-scale value. ## Environmental and Wiring Accepts solid or stranded conductors from 0.5 to 4 mm², with multiple conductor options: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². Includes an auxiliary switch. Main contact size range is 20 to 12.","metaTitle":"Siemens 3RT2016-1BJ81 SIRIUS Power Contactor, 72 V DC Coil,","metaDescription":"Siemens SIRIUS 3RT2016-1BJ81 power contactor, Size S00, 72 V DC coil, 10 A at 24 V DC, screw terminals, DIN rail mount. Current production. Sourced to order.","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 DC":"7 ... 13 ms","Height":"58 mm","Upwards":"10 mm","Forwards":"10 mm","Stranded":"0.5 ... 4 mm²","Downwards":"10 mm","Arcing Time":"10 ... 15 ms","At The Side":"6 mm","Rated Value":"72 V","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of Magnet Coil":"Screw-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 DIN rail according to DIN EN 60715","Full-Scale Value":"1.1","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 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 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":"1 hp","at 400 V rated value":"3 A","at 440 V rated value":"0.2 A","at 480 V rated value":"7.6 A","at 500 V rated value":"2 A","at 600 V rated value":"9 A","at 690 V rated value":"1 A","Side-By-Side Mounting":"Yes","For Auxiliary Contacts":"20 ... 12","For Main Current Circuit":"screw-type terminals","at 110/120 V rated value":"0.33 hp","at 200/208 V rated value":"2 hp","at 220/230 V rated value":"3 hp","at 460/480 V rated value":"5 hp","at 575/600 V rated value":"7.5 hp","Relative Humidity Minimum":"10 %","Of Main Circuit Rated Value":"6 kV","at AC-3 rated value maximum":"690 V","at AC in hot operating state":"0.9 W","at AC-2 at 400 V rated value":"4 kW","at AC-3e rated value maximum":"690 V","at AC-4 at 400 V rated value":"8.5 A","safety-related switching OFF":"Yes","Substance Prohibitance (Date)":"10/01/2009","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":"7.4 A","For Auxiliary And Control Circuit":"screw-type terminals","Function Module For Communication":"No","With Type Of Assignment 2 Required":"gG: 20A (690V,100kA), aM: 16A (690V, 100kA), BS88: 20A (415V, 80kA)","Without Load Current Share Typical":"4 W","closing power of magnet coil at DC":"4 W","holding power of magnet coil at DC":"4 W","At Contactor For Auxiliary Contacts":"Screw-type terminals","With Type Of Coordination 1 Required":"gG: 35A (690V,100kA), aM: 20A (690V,100kA), BS88: 35A (415V,80kA)","operational current at AC-12 maximum":"10 A","at AC in hot operating state per pole":"0.3 W","for AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 2x 12","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 ... 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)","mirror contact according to IEC 60947-4-1":"Yes; with 3RH29","with low demand rate according to SN 31920":"40 %","with high demand rate according to SN 31920":"73 %","Type Of Voltage Of The Control Supply Voltage":"DC","Limited To 1 S Switching At Zero Current Maximum":"155 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 5 S Switching At Zero Current Maximum":"111 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 10 S Switching At Zero Current Maximum":"86 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 30 S Switching At Zero Current Maximum":"66 A; Use minimum cross-section acc. to AC-1 rated value","Limited To 60 S Switching At Zero Current Maximum":"55 A; Use minimum cross-section acc. to AC-1 rated value","contact rating of auxiliary contacts according to UL":"A600 / Q600","Of Main Circuit With Degree Of Pollution 3 Rated Value":"690 V","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","Of Auxiliary Circuit With Degree Of Pollution 3 Rated Value":"690 V","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,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=173934&mlfb=3RT2016-1BJ81","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT2016-1BJ81/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for the 3RT2016-1BJ81?","answer":"The 3RT2016-1BB41-ZW97 is a listed peer variant. Both are Size S00 SIRIUS contactors with screw terminals; the key difference is the coil voltage — the 3RT2016-1BJ81 uses a 72 V DC coil, while the 3RT2016-1BB41-ZW97 uses a different coil voltage. Panel fit and wiring footprint are identical."},{"question":"What is the depth of the 3RT2016-1BJ81?","answer":"The depth is 73 mm."},{"question":"What conductor cross-section does the 3RT2016-1BJ81 accept?","answer":"It accepts solid or stranded conductors from 0.5 to 4 mm², and multiple conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm²."},{"question":"Will the 3RT2016-1BJ81 drop into a panel specified around the 3RT2016-1BB41-ZW97 without rewiring?","answer":"Yes, both are Size S00 SIRIUS contactors with the same screw-type terminals and DIN rail mounting footprint. The physical swap is direct; the only difference is the coil voltage — verify your control circuit voltage matches 72 V DC before substituting."},{"question":"What compliance documentation does Siemens provide for the 3RT2016-1BJ81?","answer":"As a SIRIUS product, it typically carries CE, UL, CSA, and CCC certifications, with RoHS and REACH declarations available from Siemens. Specific documentation should be requested at time of order to match your compliance audit requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT2016-1BJ81","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/3RT2016-1BJ81 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}}