143963-1

The part number 143963-1 from Yaskawa is engineered as a limit switch tailored for diverse operational needs. This device uses a parallel roller plunger as its actuator style, ensuring smooth and accurate movement during operation. It employs a single pole double throw (SPDT) configuration, featuring one normally open (NO) and one normally closed (NC) contact in a snap-action format.

Rated for 250 VAC, this limit switch can manage a current of 15 A, making it suitable for various industrial applications. This product is built for longevity, achieving an impressive mechanical life of up to one million cycles. The switch is designed for use in extreme conditions, operating effectively within a temperature range of -40 °C to +105 °C, thereby ensuring reliability across different environments.

With a robust ingress protection rating of IP66, it safeguards internal components from dust and water ingress. It incorporates precise travel specifications, with a pretravel distance of 1.8 mm and a differential travel of 0.1 mm, alongside an overtravel measurement of 3.0 mm. The operating force required for actuation is 12.2 N.

In terms of electrical characteristics, the insulation resistance is rated at a minimum of 100 MΩ with a voltage of 500 V DC. The dielectric strength of the switch withstands impulses of up to 1.5 kV, ensuring safety in various electrical applications. For connectivity, the device utilizes a 4-core SJTO 0.75 mm² cable, with an optional M12 termination available for flexible installation options.