NeoDyn 125P Pressure Switch - NEMA 4X, 7, 9 & 13 Tamper Proof

Description

Neodyn 125P Series represents the pinnacle of reliability in pressure switching technology. Designed to operate in harsh industrial environments, this switch combines explosion-proof and weather-proof protection standards. The comprehensive enclosure rating covers NEMA 4X (Corrosion Resistant), NEMA 7 (Explosion Proof – Gas), NEMA 9 (Dust Ignition Proof), and NEMA 13 (Oil/Coolant Tight), making it a versatile solution for oil and gas, chemical processing, and heavy manufacturing sectors.

What distinguishes the 125P from standard switches is its internal mechanism. It utilizes a diaphragm sensor coupled with the efficient Nega-Rate® Belleville disc spring. This design offers a “snap-action” response that provides resistance to vibration and shock, which are common causes of false tripping in other switches. Furthermore, the tamper-proof set point design ensures that critical safety settings cannot be inadvertently adjusted by unauthorized personnel, maintaining the highest level of process security.

Brand

Neodyn

ITT Neo-Dyn® is a leading manufacturer of high quality and reliable industrial switches. Our compact adjustable switches, pressure switches, hazardous area switches, vacuum switches, and temperature switches support a variety of applications throughout the world. Our legacy of competitively priced products and on time delivery, guarantee that you have the proven performance in the product that you need to support your specific requirements when you need it most. With a strong focus in the aerospace, general industrial, energy and chemical markets, we are your first choice for all of your switch product needs.

Specifications

Deadband (Differential): The deadband can be selected anywhere from 20 psig (1.38 bar) or 8% (whichever is greater) to 45% of the set point
Electrical Connection: 1/2 NPT male conduit connection with PVC insulated 18 AWG, 18” long leads
Pressure Connection: 1/4 NPT Female
Temperature Range*
- Ambient: -40°F to +180°F (-40°C to +82°C)
- Media: -40°F to +300°F (-40°C to +149°C)
Shipping Weight: Approximately 1 pound

*Temperature limits change with O-Ring selection. See Electrical Assembly specification sheet for Temperature Class Ratings.

Features

Advanced Sensing Technology: Equipped with a diaphragm sensor and Nega-Rate® Belleville disc spring for superior accuracy and repeatability.
Comprehensive Enclosure Protection: Rated for NEMA 4X, 7, 9, and 13, making it suitable for hazardous and corrosive environments.
Tamper-Proof Design: Fixed set point configuration prevents unauthorized adjustments, enhancing system safety.
Narrow Deadband: Ideal for applications requiring precise differential pressure control.
Vibration Resistance: The disc spring mechanism minimizes the effects of external vibration.