Type PXA - Mini pressure switch Ex protection EEx-d, IP 66

Applications
Pressure monitoring and direct switching of electrical loads
For measuring points with limited space
For gaseous and liquid, aggressive and highly viscous or contaminated media, also in aggressive ambience
Process industry: chemical/petro-chemical, on- and offshore, technical gases, environmental technology, machine building and general plant construction, water treatment, pharmaceutical industry
Types of explosion protection
- GAS Ex-d DUST Ex-tD Gr. II Cat. 1/2 GD
- Ex-d IIC T6 and T4
- Ex-tD A21 IP66 T85 and T135

Special Features
Case made of stainless steel
Ingress protection IP 66
Ambient temperature -40 ... +85 °C
1 switch point, high contact rating of up to 5 A / AC 220 V
Setting ranges 1 ... 2.5 bar to 50 ... 400 bar

Description

These high-quality pressure switches have been specifically developed for applications with limited space in hazardous zones.
High quality and product manufacturing to ISO 9001:2000 ensures reliable monitoring of your plant. In production, the switches are traced by quality assurance software at every step and subsequently are 100 % tested.
All wetted parts materials are from Hastelloy® C276 or stainless steel as standard. Each switch family is available in IP 66, Ex-ia or Ex-d versions (Ex-ia see model PXS, data sheet PV 34.36).

In order to ensure as flexible operation as possible, the pressure switches are equipped with micro switches, which make it possible to switch an electrical load of up to 5 A / AC 220 V directly.
For smaller contact ratings, such as for PLC applications, hermetically sealed micro switches with gold-plated contacts can be selected as an option.
By using a disc spring with a prestressed snap-action spiral tube the pressure switch model PXA is extremely reliable and guarantees optimal operating characteristics.

Selected documents