PP2184/2004/Issue 1 PP2184/2004/Issue 1
FIRE DETECTORS LIMITED
Apollo DIN-Rail Enclosure
When using the Apollo DIN-Rail Enclosure (part nos 29600-239, 29000-240)
in intrinsically safe systems, please ensure the following:
It is important that segregation be provided between the IS and non-
IS circuits. A distance of at least 50mm must be preserved between
live conducting parts of IS and other circuits.
A warning label should be attached to the box cover to indicate that IS
circuits are present. This label is provided inside the enclosure.
The enclosure must always be installed inside the safe area. Never install
this enclosure in the hazardous area.
Figures 1, 2 and 3 show how to connect a conventional and an addressable
IS circuit safely using the Apollo enclosure.
PP2184/2004/Issue 1
FIRE DETECTORS LIMITED
Apollo DIN-Rail Enclosure
When using the Apollo DIN-Rail Enclosure (part nos 29600-239, 29000-240)
in intrinsically safe systems, please ensure the following:
It is important that segregation be provided between the IS and non-
IS circuits. A distance of at least 50mm must be preserved between
live conducting parts of IS and other circuits.
A warning label should be attached to the box cover to indicate that IS
circuits are present. This label is provided inside the enclosure.
The enclosure must always be installed inside the safe area. Never install
this enclosure in the hazardous area.
Figures 1, 2 and 3 show how to connect a conventional and an addressable
IS circuit safely using the Apollo enclosure.
PP2184/2004/Issue 1
FIRE DETECTORS LIMITED
Apollo DIN-Rail Enclosure
When using the Apollo DIN-Rail Enclosure (part nos 29600-239, 29000-240)
in intrinsically safe systems, please ensure the following:
It is important that segregation be provided between the IS and non-
IS circuits. A distance of at least 50mm must be preserved between
live conducting parts of IS and other circuits.
A warning label should be attached to the box cover to indicate that IS
circuits are present. This label is provided inside the enclosure.
The enclosure must always be installed inside the safe area. Never install
this enclosure in the hazardous area.
Figures 1, 2 and 3 show how to connect a conventional and an addressable
IS circuit safely using the Apollo enclosure.
FIRE DETECTORS LIMITED
Apollo DIN-Rail Enclosure
When using the Apollo DIN-Rail Enclosure (part nos 29600-239, 29000-240)
in intrinsically safe (IS) systems, please ensure the following:
It is important that segregation be provided between the IS and non-
IS circuits. A distance of at least 50mm must be preserved between
live conducting parts of IS and other circuits.
A warning label should be attached to the box cover to indicate that IS
circuits are present. This label is provided inside the enclosure.
The enclosure must always be installed inside the safe area. Never install
this enclosure in the hazardous area.
Figures 1, 2 and 3 show how to connect a conventional and an addressable
IS circuit safely using the Apollo enclosure.
! !
! !
Barrier Hazardous
Area
DIN-Rail
Safe Area
50mm
© Apollo Fire Detectors Limited/J.Roughton/2004
Fig 1 Conventional IS configuration
Barrier Hazardous
Area
DIN-Rail
Safe Area
50mm
© Apollo Fire Detectors Limited/J.Roughton/2004
Fig 1 Conventional IS configuration
Barrier Hazardous
Area
DIN-Rail
Safe Area
50mm
© Apollo Fire Detectors Limited/J.Roughton/2004
Fig 1 Conventional IS configuration
Barrier Hazardous
Area
DIN-Rail
Safe Area
50mm
© Apollo Fire Detectors Limited/J.Roughton/2004
Fig 1 Conventional IS configuration
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