Technology for safety
13
D1000 series - Intrinsically Safe Isolators
Fig. 1 Horizontal orientation in the cabinet
5) Air Conditioned Cabinets
Air conditioned cabinets are preferred in hot climates and / or harsh environments. Cabinet temperature can become equal or even lower than the
ambient temperature. A specific refrigerating system or the existing air conditioning system can be used for cabinet conditioning.
As an example a cabinet sized 600x600 mm and 2000 mm high has a temperature rise of 10 °C for an installed power of 1000 W.
Placement of isolators in cabinet
The placement of the barriers in the cabinet has an important impact on the ambient temperature. The following points should be considered:
1. The sum of the individual dissipated power of the installed barriers plus other devices need to be below the calculated or given maximum
dissipation power of the cabinet.
2. The D1000 series could be installed in horizontal or vertical mounting position. The installation in horizontal position offers an
improved heat transport.
3. Place the units with higher dissipation power in the upper part of the cabinet.
4. If you apply ventilation please consider the following:
a) When applying temperature control you have to install the temperature sensor in the upper part of the cabinet.
b) It is more effective to install a fan into the roof of the cabinet rather than in the lower part of the cabinet.
5. Take care about reasonable distance between D1000 series and cable channels. We recommend a distance of 6 cm.
(see figure 1 and 2). If the place in the cabinet does not allow to keep the distance we strongly recommend to place the DIN rail
away from the back side of the cabinet by means of distance bolts.
A
B
C
Minimum 6 cm distance
between isolators and
cable duct.
B
C
Non I.S. cable duct
A
D1000 Series
I.S. cable duct
Fig. 2 Vertical orientation in the cabinet
Minimum 6 cm distance
between isolators and
cable duct.
B
C
Non I.S. cable duct
A
D1000 Series
I.S. cable duct
A B C
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