Safety Limit Switch D4N Upgraded Safety Limit Switches Based on the Popular D4D, Providing a Full Lineup Conforming to International Standards Lineup includes three contact models with 2NC/1NO and 3NC contact forms in addition to the previous contact forms 1NC/ 1NO, and 2NC. Models with MBB contacts are also available. M12-connector models are available, saving on labor and simplifying replacement. Standardized gold-clad contacts provide high contact reliability. Can be used with both standard loads and microloads. Conforms to EN115 and EN81-2. Lineup includes both slow-action and snap-action models with Zb contacts. Certified standards: UL, EN (TV), and CCC Note: Contact your sales representative for details on models with Note: Be sure to read the Safety Precautions on page 268. safety standard certification. Model Number Structure Model Number Legend D4N- 1 2 3 1. Conduit/Connector size 3. Head and Actuator 1: Pg13.5 (1-conduit) 20: Roller lever (resin lever, resin roller) 2: G1/2 (1-conduit) 22: Roller lever (metal lever, resin roller) 3: 1/2-14NPT (1-conduit) 25: Roller lever (metal lever, metal roller) 4: M20 (1-conduit) 26: Roller lever (metal lever, bearing roller) 5: Pg13.5 (2-conduit) 2G:Adjustable roller lever, form lock (metal lever, resin roller) 6: G1/2 (2-conduit) 2H: Adjustable roller lever, form lock (metal lever, rubber roller) 7: 1/2-14NPT (2-conduit) 31: Top plunger 8: M20 (2-conduit) 32: Top roller plunger 9: M12 connector (1-conduit) 62: One-way roller arm lever (horizontal) 2. Built-in Switch 72: One-way roller arm lever (vertical) 1: 1NC/1NO (snap-action) 80: Cat whisker 2: 2NC (snap-action) 87: Plastic rod A: 1NC/1NO (slow-action) RE:Fork lever lock (right operation) B: 2NC (slow-action) LE: Fork lever lock (left operation) C: 2NC/1NO (slow-action) D: 3NC (slow-action) E: 1NC/1NO (MBB contact) (slow-action) F: 2NC/1NO (MBB contact) (slow-action) 250 Safety Limit Switch D4NOrdering Information List of Models Switches with Two Contacts Actuator Conduit size Built-in switch mechanism 1NC/1NO 2NC 1NC/1NO 2NC (Snap-action) (Snap-action) (Slow-action) (Slow-action) Direct Model Direct Model Direct Model Direct Model opening opening opening opening Roller lever (resin 1-conduit Pg13.5 D4N-1120 D4N-1220 D4N-1A20 D4N-1B20 lever, resin roller) G1/2 D4N-2120 D4N-2220 D4N-2A20 D4N-2B20 1/2-14NPT D4N-3120 D4N-3220 D4N-3A20 D4N-3B20 M20 D4N-4120 D4N-4220 D4N-4A20 D4N-4B20 M12 connector D4N-9120 D4N-9220 D4N-9A20 D4N-9B20 2-conduit Pg13.5 D4N-5120 D4N-5220 D4N-5A20 D4N-5B20 G1/2 D4N-6120 D4N-6220 D4N-6A20 D4N-6B20 M20 D4N-8120 D4N-8220 D4N-8A20 D4N-8B20 Roller lever (metal 1-conduit Pg13.5 D4N-1122 D4N-1222 D4N-1A22 D4N-1B22 lever, resin roller) G1/2 D4N-2122 D4N-2222 D4N-2A22 D4N-2B22 1/2-14NPT D4N-3122 D4N-3222 D4N-3A22 D4N-3B22 M20 D4N-4122 D4N-4222 D4N-4A22 D4N-4B22 M12 connector D4N-9122 D4N-9222 D4N-9A22 D4N-9B22 2-conduit Pg13.5 D4N-5122 D4N-5222 D4N-5A22 D4N-5B22 G1/2 D4N-6122 D4N-6222 D4N-6A22 D4N-6B22 M20 D4N-8122 D4N-8222 D4N-8A22 D4N-8B22 Roller lever (metal 1-conduit Pg13.5 D4N-1125 D4N-1225 D4N-1A25 D4N-1B25 lever, metal roller) G1/2 D4N-2125 D4N-2225 D4N-2A25 D4N-2B25 1/2-14NPT D4N-3125 D4N-3225 D4N-3A25 D4N-3B25 M20 D4N-4125 D4N-4225 D4N-4A25 D4N-4B25 M12 connector D4N-9125 D4N-9225 D4N-9A25 D4N-9B25 Roller lever (metal 1-conduit Pg13.5 D4N-1126 D4N-1226 D4N-1A26 D4N-1B26 lever, bearing G1/2 D4N-2126 D4N-2226 D4N-2A26 D4N-2B26 roller) 1/2-14NPT D4N-3126 D4N-3226 D4N-3A26 D4N-3B26 M20 D4N-4126 D4N-4226 D4N-4A26 D4N-4B26 M12 connector D4N-9126 D4N-9226 D4N-9A26 D4N-9B26 Plunger 1-conduit Pg13.5 D4N-1131 D4N-1231 D4N-1A31 D4N-1B31 G1/2 D4N-2131 D4N-2231 D4N-2A31 D4N-2B31 1/2-14NPT D4N-3131 D4N-3231 D4N-3A31 D4N-3B31 M20 D4N-4131 D4N-4231 D4N-4A31 D4N-4B31 M12 connector D4N-9131 D4N-9231 D4N-9A31 D4N-9B31 2-conduit Pg13.5 D4N-5131 D4N-5231 D4N-5A31 D4N-5B31 G1/2 D4N-6131 D4N-6231 D4N-6A31 D4N-6B31 M20 D4N-8131 D4N-8231 D4N-8A31 D4N-8B31 Roller plunger 1-conduit Pg13.5 D4N-1132 D4N-1232 D4N-1A32 D4N-1B32 G1/2 D4N-2132 D4N-2232 D4N-2A32 D4N-2B32 1/2-14NPT D4N-3132 D4N-3232 D4N-3A32 D4N-3B32 M20 D4N-4132 D4N-4232 D4N-4A32 D4N-4B32 M12 connector D4N-9132 D4N-9232 D4N-9A32 D4N-9B32 2-conduit Pg13.5 D4N-5132 D4N-5232 D4N-5A32 D4N-5B32 G1/2 D4N-6132 D4N-6232 D4N-6A32 D4N-6B32 M20 D4N-8132 D4N-8232 D4N-8A32 D4N-8B32 Safety Limit Switch D4N 251