To facilitate dependable and
simple I/O on Profibus PA with up to 12 I/O per J/B, Turck have
designed these DIN-Rail mounted junction boxes making I/O
connections to the PA trunk line easy and reliable. Made from
aluminium and powder paint coated, they have IP20 degree of
protection. We can also supply any type enclosure to suit your
All feature In and Out at the
top for the main PA trunk line with an option for 4, 6, 8, or 12 I/O
points. Types are available with or without internal Short Circuit
Protection. All are suitable for General Area use and are
Intrinsically Safe for Zone 1 hazardous areas.
The models with Short Circuit
Protection have an adjustable short-circuit limit. The max. current
limit is selected for all channels via a rotary switch. The
following values can be selected: 30, 35, 45 and 60 mA.
Further choice is available in
the connection type you prefer on the junction box. The ...R/EX
models have standard screw terminals and the models ...C/EX have
cage clamp terminals.
An integrated end-of-line
resistor can be activated if required, earth terminals for cables
and an earthing bolt for the J/B's frame itself are provided along
with a switch if the cable earth is to be connected to the housing