Safety Limit Switch D4B- N C72 I -E-02 Robust safety limit switch with metal housing Note: Contact your sales representative for details on models with safety standard certification. Slow-action and snap-action contact with certified direct opening operation certification Direct opening mechanism (NC contacts only) added to enable opening contacts when faults occur, such as fused contacts. Safety of lever settings ensured using a mechanism that engages a gear between the operating position indicator plate and the lever. Equipped with a mechanism that indicates the applicable operating zone, as well as push-button switching to control left and right motion. Head seal structure strengthened to improve seal properties For the most recent information on models that have been certified for safety standards, refer to your OMRON website. (TV: IEC IP67, UL: NEMA 3, 4, 4X, 6P, and 13). Wide standard operating temperature range: 40 to 80C (standard type). Certified standards: UL, CSA, EN (TV), and CCC. Conforms to ISO 14119. Be sure to read the Safety Precautions on page 9. Model Number Structure Model Number Legend D4B- N 1 2 3 1. Conduit size 3. Actuator 2: G1/2 (PF1/2) (1-conduit) 11: Roller lever (resin roller) 4: M20 (1 conduit) 15: Roller lever (stainless steel roller) 2. Built-in Switch 16: Adjustable roller lever 1: 1NC/1NO (snap-action) 17: Adjustable rod lever 5: 1NC/1NO (slow-action) 70: Top plunger A: 2NC (slow-action) 71: Top roller plunger 1D4B- N Ordering Information Set Model Numbers Consult with your OMRON representative when ordering any models that are not listed in this table. Safety Limit Switches (with Direct Opening Mechanism) 1NC/1NO (Snap-action) 1NC/1NO (Slow-action) 2NC (Slow-action) Actuator Conduit openings Direct Direct Direct Model Model Model opening opening opening G1/2 (PF1/2) D4B-2111N D4B-2511N D4B-2A11N Roller lever (resin roller) M20 D4B-4111N D4B-4511N D4B-4A11N Roller lever G1/2 (PF1/2) D4B-2115N D4B-2515N D4B-2A15N (stainless steel M20 D4B-4115N D4B-4515N D4B-4A15N roller) G1/2 (PF1/2) D4B-2170N D4B-2570N D4B-2A70N Top plunger M20 D4B-4170N D4B-4570N D4B-4A70N G1/2 (PF1/2) D4B-2171N D4B-2571N D4B-2A71N Top roller plunger M20 D4B-4171N D4B-4571N D4B-4A71N General-purpose Limit Switches 1NC/1NO (Snap-action) 1NC/1NO (Slow-action) 2NC (Slow-action) Actuator Conduit openings Direct Direct Direct Model Model Model opening opening opening G1/2 (PF1/2) D4B-2116N D4B-2516N D4B-2A16N Adjustable roller --- --- --- lever M20 D4B-4116N D4B-4516N D4B-4A16N G1/2 (PF1/2) D4B-2117N D4B-2517N D4B-2A17N Adjustable rod --- --- --- lever M20 D4B-4117N D4B-4517N D4B-4A17N Note: Consult your OMRON representative for products. 2