产品特点 FEATURES

1 Slim and compact sealed limit switch with enhanced sealing performance and longer service life compared to the original D4E series.

2 Built-in flat springs with optimized lever ratio ensure smooth snap action and extended mechanical life (minimum 10 million operations) and electrical life (500k operations for standard load, up to 5 million for micro load).

3 Protection cover and tough seal cap on the plunger provide effective resistance against dust and oil, suitable for harsh industrial environments.

4 One-touch connector option reduces wiring time and maintenance downtime; screw terminal models (with/without cable, molded terminals) are also available for flexibility.

5 Gold-clad contacts in minute load models make them ideal for sensitive electronic control applications.

6 Molded terminal models can be equipped with operation indicators (neon lamp for AC 90-250V or LED for DC 24V) to facilitate maintenance and inspection.

7 Compliant with international safety standards including EN, UL, CSA, and CCC (consult Omron representative for approved models).

8 Consistent mounting pitch and operating characteristics with original D4E models allow for direct replacement without modifying existing setups.

9 IP67 protection rating ensures dust tightness and resistance to water immersion (up to 1m for 30 minutes).

10 Screw terminal models feature 10mm horizontal wiring space and M3 screws with toothed washers for secure, reliable connections.

使用场景 APPLICATIONS

1 Industrial automation systems: Position detection in conveyor belts, packaging machines, printing presses, and robotic arm end-of-motion limits.

2 Manufacturing equipment: CNC machine tool position limits, assembly line part presence/absence sensing, and material handling lift control.

3 Harsh environment applications: Factories with cutting fluids, dusty workshops, and enclosed outdoor equipment (e.g., agricultural machinery) due to IP67 sealing.

4 Electronic control systems: Suitable for micro load applications like sensor signal transmission or small actuator control (gold-clad contacts).

5 Maintenance-friendly setups: Molded terminal models with indicators are ideal for machines requiring quick status checks (e.g., packaging lines, textile machines).

注意事项 PRECAUTIONS

1 Operating environment: Avoid direct exposure to cutting chips, heavy dust, or corrosive chemicals (may degrade seal materials). For outdoor use or contact with special oils/solvents, conduct on-site testing and establish regular maintenance intervals.

2 Vibration and shock: Do not install in areas with excessive vibration or shock; ensure the switch is mounted to avoid resonance, which can cause contact failure or reduced durability.

3 Mounting guidelines: Use two M4 screws with a tightening torque of 1.18-1.37 N·m. For panel-mounted models, tighten hexagonal nuts to less than 7.85 N·m. Ensure overtravel is between 70% and 100% of the rated value to maintain performance.

4 Wiring practices: For screw terminals, use M3 round solderless terminals (0.75mm² conductor, 7mm cable diameter) with insulation tubes. Tighten terminal screws to 0.24-0.44 N·m; do not solder screw terminals.

5 Connector handling: When using one-touch connectors, fully insert the switch body and push the clamps alternately left and right to ensure a secure fit.

6 Indicator models: Verify voltage compatibility before use (neon lamp: AC 90-250V; LED: DC 24V).

7 Safety measures: Do not use the switch in applications involving life-threatening risks without proper system-level safety design. Install a 10A gI/gG fuse (IEC60269) in series to protect against short circuits.

8 Regular maintenance: Inspect the switch periodically for seal deterioration, contact wear, or loose connections; replace if any signs of damage or malfunction are detected.

D4E-2A23N-PDF数据手册-参考资料