Potentiometer max. 8 W with cable tail

Certificates

  PTB 03 ATEX 1026
  NEPSI GYJ111407X

Ex protection type

 II 2G Ex d IIC T6, T5

Ambient temperature

-20 °C up to +70 °C

Description

This standard range of up to 8 W potentiometers with wire-wound resistors show that Ex potentiometers can be small and compact.

The external dimensions are approximately the same as those of standard industrial potentiometer enclosures. Central fixing in a single hole and the standard size of shaft have been included. From the variety of resistors on the market we have chosen the most commonly used types and developed a standard program range.

The metal Ex d enclosures are tailored to the dimensions of the resistors and feature a standard 30 mm diameter. The potentiometers have been designed so that the stated nominal capacities can be fully exploited at temperature class T6 or T5 and be deployed in zones 1 and 2.

They can be fixed and protected against turning in different ways. Two nuts are included in each consignment. At an extra charge BARTEC provides either threaded holes in the front panel of the enclosure or an antirotation pin. For the correct connection of the cable ends we have developed special Ex terminals and enclosures. The most important data such as resistance values, power ratings and dimensions can be found in the table on the right. We also supply accessories such as rotary and pointer knobs, scales and slip clutches.

In addition to the standard models all other versions such as tandem potentiometers, potentiometers with microswitches, non-standard shafts or larger resistor diameters can be encapsulated in enclosures of up to 120 mm diameter.