Explosion Protected Products - Cooper Crouse-Hinds

6.52
M U L T I P U R P O S E T E R M I N A L
Multi Purpose Terminal more power for Zone 1
Neither sparks nor hot surfaces may cause
explosion hazards in areas where flammable
gases, vapours, or mists may occasionally exist.
Electrical apparatus for use in these areas must
contain protection methods to prevent this. In
the past this meant that you had to obtain a
hot work permit when you wanted to carry out
maintenance work on these circuits. Alternatively
the circuits would have to be intrinsically safe.
The new multi purpose terminal employs a
2-step removal process to ensure that possible
high energy sparks will be kept inside the flame
proof enclosure of the terminals. The red removal
lever of the terminals (see photo) separates
the electrical circuits. The metal pins of the
module remain within the flame proof area until
the module is removed manually. At this point
sparks will have been extinguished already and
the module will be volt free.
Common Data
maximum voltage 400 V
maximum current 6.3 A
permissible wire diameter 0.8 ... 2.5 mm2 Hot Swap in Zone 1 or Zone 2
More power without hot work permits
Applications:
fusing of Ex-d valves, signal lamps,
sounders etc.
can be fitted with simple 2-pole or 4-pole
components such as resistors, fuses,
relays etc.
diode separation of supply circuits
simple OR gate for Zone 1 mounting
visible disconnect of field devices
relay switch for power circuits
Bus termination
current limitation
opto coupler etc.
Time savings during maintenance
International approvals