{"product_id":"siemens-key-operated-switch-2-positions-lock-number-421","title":"Siemens Key-operated switch, 2 positions, lock number 421","description":"\u003ch3\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Siemens 3SU1000-4DF11-0AA0 is a key-operated switch from the RONIS series, designed for front-panel operator control. It features a 22 mm mounting diameter, plastic black front ring, silver metal key actuator (Lock No. 421), and offers two switch positions (O and I) with key removal in both positions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eKey-operated switch (RONIS lock No. 421) with 2 keys supplied\u003c\/li\u003e\n\u003cli\u003e22 mm round actuator, front ring diameter ~29.5 mm\u003c\/li\u003e\n\u003cli\u003eActuating angle: 90° (positions at 10:30 h \/ 13:30 h) with latching function\u003c\/li\u003e\n\u003cli\u003eKey removable in both O and I positions (O+I) for secure operation\u003c\/li\u003e\n\u003cli\u003eProtection class of actuator front: IP66 \/ IP67 \/ IP69K; terminations rated IP20\u003c\/li\u003e\n\u003cli\u003eDesigned for front-panel mounting with mounting depth ~25.4 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Series:\u003c\/strong\u003e SIRIUS ACT – Key-Operated Switches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArticle Number:\u003c\/strong\u003e 3SU1000-4DF11-0AA0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActuating Element:\u003c\/strong\u003e Key, metal, silver finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Diameter:\u003c\/strong\u003e 22.3 mm (+0.4 mm tolerance)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Depth:\u003c\/strong\u003e 25.4 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Dimensions (H×W):\u003c\/strong\u003e 49.4 mm × 29.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical Service Life:\u003c\/strong\u003e ~1 000 000 switching cycles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShock Resistance:\u003c\/strong\u003e 15 g \/ 11 ms (IEC 60068-2-27)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVibration Resistance:\u003c\/strong\u003e 10-500 Hz at 5 g (IEC 60068-2-6)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmbient Temperature (Operation):\u003c\/strong\u003e –25 °C to +70 °C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e –40 °C to +80 °C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eCompliance \u0026amp; Certifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eProtection front: IP66 \/ IP67 \/ IP69K; terminals: IP20\u003c\/li\u003e\n\u003cli\u003eNEMA ratings: 1, 2, 3, 3R, 4, 4X, 12, 13\u003c\/li\u003e\n\u003cli\u003eComplies with Siemens industrial-automation standards for operator control elements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe 3SU1000-4DF11-0AA0 key-operated switch is ideal for machine-control panels, safety interlock systems, and industrial automation interfaces where secure key removal in either operating position is needed. Its high protection rating and robust design make it suitable for harsh-environment use, such as in manufacturing plants, outdoor cabinets or maintenance-critical installations.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":40775095287872,"sku":"3SU1000-4DF11-0AA0","price":541.23,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0556\/3662\/3424\/files\/3SU1000-4DF11-0AA0.jpg?v=1761829781","url":"https:\/\/industrial.rubicon.tech\/products\/siemens-key-operated-switch-2-positions-lock-number-421","provider":"Rubicon Group Industrial Technology Shop","version":"1.0","type":"link"}