Miniature Safety Limit Switch D4N Safety Limit Switches compatible to the Popular D4D, Providing a Full Lineup Conforming to In- ternational Standards • Lineup includes three contact models with 2NC/1NO and 3NC in addition to the 1NC/1NO, and 2NC contact mod- els. Models with MBB contacts are available too. • M12-connector models are available, saving on labor and simplifying mainte- nance. • Standardized gold-clad contacts pro- vide high contact reliability. Can be used with both standard loads and microloads. • Free of lead, cadmium, and hexavalent chrome, reducing the burden on the environment. • Conforms to EN115 and EN81-1. • Lineup includes both slow-action and snap-action models with Zb contacts. Be sure to read the Safety Precautions on page G-237. Note: Contact your sales representative for details on models with safety standard certification. Model Number Structure Model Number Legend D4N-@@@@ 1 2 3 1. Conduit/Connector size 1: Pg13.5 (1-conduit) 2: G1/2 (1-conduit) 3: 1/2-14NPT (1-conduit) 4: M20 (1-conduit) 5: Pg13.5 (2-conduit) 6: G1/2 (2-conduit) 7: 1/2-14NPT (2-conduit) 8: M20 (2-conduit) 9: M12 connector (1-conduit) 2. Built-in Switch 1: 1NC/1NO (snap-action) 2: 2NC (snap-action) A: 1NC/1NO (slow-action) B: 2NC (slow-action) C: 2NC/1NO (slow-action) D: 3NC (slow-action) E: 1NC/1NO (MBB contact-/-slow-action) F: 2NC/1NO (MBB contact-/-slow-action) 3. Head and Actuator 20: Roller lever (resin lever, resin roller) 22: Roller lever (metal lever, resin roller) 25: Roller lever (metal lever, metal roller) 26: Roller lever (metal lever, bearing roller) 2G: Adjustable roller lever, form lock (metal lever, resin roller) 2H: Adjustable roller lever, form lock (metal lever, rubber roller) 31: Top plunger 32: Top roller plunger 62: One-way roller arm lever (horizontal) 72: One-way roller arm lever (vertical) 80: Cat whisker 87: Plastic rod RE: Fork lever lock (right operation) LE: Fork lever lock (left operation) D4N G-219
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