Omron D4n Series Roller Lever Limit Switch, 1 NO/1 NC, IP67, Metal Housing

This limit switch is a Compact industrial control device designed to detect mechanical movement and change electrical contacts in automation and machinery environments. Housed in plastic with an IP67 protection rating, it accepts an M20 conduit entry and offers a roller lever actuator for Interface with moving parts. The unit provides one normally open and one normally closed contact arranged for slow-action switching suitable for both standard and microloads, and is intended for multi-directional mounting in indoor installations.

• IP67 enclosure protects against dust and temporary immersion
• Slow-action contacts rated for 10A at 240V AC provide usable switching capacity
• Screw terminals accept AWG20 to AWG18 wires for secure connections
• Mechanical durability rated at 15,000,000 cycles reduces maintenance intervals
• Operating force of 6.4N enables sensitive actuation with low input effort
• Rated for 250V DC switching for compatibility with DC control circuits

• Suitable for conveyor end-of-travel detection in manufacturing lines
• Ideal for position sensing on mechanical presses and slides
• Used with transfer systems for machine sequencing control
• Can be used for safety interlocks where slow-action switching is acceptable
• Suitable for retrofit of existing panels requiring M20 conduit entry

It uses screw-type terminals compatible with 0.5 to 0.75mm² conductors and standard crimp ferrules

The roller lever actuator offers a forgiving contact surface for cams or dogs and allows multi-directional head orientation to match mechanical travel directions.

Although the enclosure meets IP67 for immersion resistance, the head is vulnerable to ingress by fine contaminants

Mechanical life is specified at 15,000,000 cycles while electrical endurance for resistive loads is lower, with typical electrical operation counts dependent on load magnitude and switching frequency.