Omron D4NL-1AFA-B Limit Switch D4NL1AFAB

Description:

The Omron D4NL‑1AFA‑B is a limit switch used to detect the position or movement of machine components and send a discrete signal to control systems. Installed in industrial automation, machinery, and safety interlock circuits where reliable mechanical position feedback is required. Maintenance teams and system integrators use this switch for replacement, retrofit, and system upgrades to ensure accurate end‑of‑travel and position detection.

Applications:

The Omron D4NL‑1AFA‑B limit switch is used in conveyor systems, packaging machinery, assembly lines, material handling equipment, presses, and automated systems to detect end‑of‑travel, part presence, or safety conditions. It provides reliable position feedback to PLCs, relays, and control logic. Omron limit switches are commonly deployed in manufacturing, robotics, and machine tools for dependable position detection and safety interlocking.

Technical Specifications:

• Manufacturer: Omron
• Model / Part Number: D4NL‑1AFA‑B
• Product Type: Mechanical Limit Switch
• Contact Configuration: Typically SPDT (1 NO + 1 NC)
• Actuator Type: Plunger actuator
• Rated Voltage: Up to ~250 VAC / ~30 V DC (model dependent)
• Rated Current: ~5–10 A (industrial control)
• Termination: Screw terminal connections
• Mounting: Panel or machine surface mount
• Operating Temperature: Industrial ambient range
• Housing: Rugged industrial enclosure
• Protection Rating: Varies by version
• Application: Position detection, end‑of‑travel sensing

Common Replacements:

• Omron D4NL‑1AFA‑C 
• Allen‑Bradley 802T‑A
• Siemens 3SE5 Limit Switch Series