Description
Neodyn 181P NEMA 4X, 7, 9 and 13 Vacuum Switch offers a premium solution for process control in hazardous areas. Unlike standard switches, the 181P is designed to withstand the challenges of explosive gases, dusts, and corrosive elements, ensuring operational continuity and safety.
Superior Stability with Nega-Rate® Technology At the core of the 181P is the Nega-Rate® Belleville disc spring. This proprietary technology eliminates the drift often associated with traditional sensing elements, delivering a snap-action response that remains stable over time, even in high-vibration environments. This ensures that your vacuum systems operate within their critical parameters without frequent recalibration.
Adjustable and versatile This model is designed for flexibility. It features an internal, slotted adjustment wheel, allowing technicians to fine-tune the set point to the exact needs of the application. Furthermore, the unit includes a selectable deadband feature, which can be preset, providing engineers with greater control over the switch’s reset point and reducing rapid cycling in fluctuating vacuum conditions.
Hazardous Location Certified Safety is non-negotiable. The 181P features a snap-action electrical switch assembly that is fully listed by Underwriters Laboratories, Inc., FM Approval, and CSA International. Its enclosure meets NEMA 4X, 7, 9, and 13 standards, providing protection against corrosion, explosive gases, combustible dusts, and moisture.








