Safety information
9
Martin® IP66 PSU 240W safety limits
If you supply VDO Fatron fixtures with DC power from a Martin® IP66 PSU 240W external power supply
unit:
• Do not connect more than one linked chain of VDO Fatrons to the DC power output of the Martin® IP66
PSU 240W.
• Do not exceed the maximum number of fixtures that you can include in one chain (see Table 3).
• Do not exceed a maximum total length of 50 m (164 ft.) for a chain, including fixtures and cable, measured
from the Martin® IP66 PSU 240W to the end of the chain (see Table 3).
Generic 48 VDC external PSU safety limits
If you supply a chain of VDO Fatron fixtures with DC power from a
48 VDC external PSU (power supply
unit) that you obtain yourself
, you must not exceed
the lowest
of these limits:
• Do not create a chain that will exceed the maximum power rating of the PSU output used to supply that
chain with power (to find the power consumption of the chain, multiply the number of fixtures in the chain
with the wattage per fixture according to Table 4).
• Do not exceed the maximum number of fixtures and the maximum total length of cable that you can
connect in one chain (see Table 4).
This means that, each time you reach (a) the maximum total length of fixtures in one chain, or (b) 50 m (164
ft.) total length of the chain, or (c) the PSU output’s maximum power rating
– whichever you reach first –
you must create a new chain of fixtures that is connected to a new 48 VDC power output.
PROTECTION FROM BURNS AND FIRE
• The VDO Fatron is cooled by convection. Ensure sufficient ventilation by providing free airflow and keep a
minimum distance of 10 mm (0.4 in.) between the fixture and any surfaces or objects around it.
• Do not operate the VDO Fatron if the ambient temperature (Ta) around the fixture exceeds 45° C (113° F).
• Do not modify the VDO Fatron in any way not described in this manual or install other than genuine
Martin® parts. Use only accessories approved by Martin®.
Type of fixture in
chain
Maximum number of
fixtures in chain
Maximum total length of
chain (fixtures and
cable)
VDO Fatron 20, 320 mm
10
50 m
VDO Fatron 20, 1000 mm
3
50 m
Table 3: Safety limits per chain of VDO Fatron fixtures per Martin® IP66 PSU 240W
Type of fixture in
chain
Wattage per fixture
Maximum number
of
fixtures in chain
Maximum total length
of chain (fixtures and
cable)
VDO Fatron 20,
320 mm
20 W
10
50 m
VDO Fatron 20,
1000 mm
60 W
3
50 m
Table 4: Safety limits per chain of VDO Fatron fixtures per 48 VDC external PSU (provided that PSU
rating in watts is not exceeded).
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