Omron D4A-N Series Coil Spring Limit Switch SPDT Double Break Contact IP67 600V 10A D4A-1116N

Omron D4A-1116N Coil Spring Limit Switch is a precision industrial switch designed for detecting mechanical positions and actuating control circuits in robust automation setups. It features a sealed IP67 enclosure suitable for harsh conditions, making it ideal for manufacturing, packaging, and heavy equipment safety interlocks.

The single-pole double-throw (SPDT) switch includes double break contacts for reliable and clear changeover operation, suitable for high-voltage control up to 600V and switching current of 10A. Its coil spring actuator requires only 1.47N operating force, enhancing responsiveness and reducing wear.

With a mechanical life of 50 million operations, this limit switch reduces maintenance frequency and downtime. It can operate within a wide temperature range of -20°C to 100°C, making it suitable for various industrial climates.

The device supports standard industrial cabling with a conduit entry size of 1/2 inch to 14 NPT thread, facilitating easy integration in control panels. Its front mounting orientation and compact dimensions (Length 75.5mm, Width 42mm, Depth 44mm) optimize space utilization.

Applications include conveyor end-of-travel detection, motor speed and direction feedback, packaging machinery position sensing, safety interlocks in heavy equipment panels, and rotary cam or camless actuation monitoring. The switch’s construction allows individual replacement of the head, switch body, and receptacle to minimize downtime.

The enclosure is IP67 rated for dust-tight and immersion protection. Contact arrangement is SPDT with double break contacts for enhanced control flexibility. Operating force is low at 1.47N due to coil spring actuator design.

Wide operating temperature range from -20°C to 100°C ensures adaptability. Mechanical endurance of 50 million operations supports long service life. Standard conduit entry of 1/2 in to 14 NPT enables compatibility with industrial cabling.

Compliance with UL, CSA, and RoHS meets stringent industry standards.

This limit switch is well-suited for applications in industrial automation, manufacturing lines, water treatment facilities, HVAC systems, and agricultural machinery. Its rugged design and reliable switching performance make it an essential component in control systems that require precise position monitoring and safety interlocks.

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