ADB Safegate EREL, User Manual

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Power Supply
Lights have been designed to work with any IEC or FAA compliant transformer up to 150 W. See the manual for calculation of
actual circuit VA loads.
Fixture Type Fixture Load
Without arctic kit
Bidirectional 33 VA
Unidirectional 29 VA
With arctic kit
Bidirectional 38 VA
Unidirectional 31 VA
2.3 IQ function load (option)
With IQ enabled an additional capacity of 12 W need to be added to the transformer calculations.
CAUTION
SafeLED IQ is not to be connected to transformers smaller than 65 W.
2.4 2A system
When dimensioning the isolation transformer size for a 2A-system (a series circuit with SafeLED IQ 2A which is only supposed
to run at 2A), it is important to know that the regular method by adding up the total wattage on the isolation transformer
secondary side, cannot be used. This is because a standard isolation transformer 6.6A/6.6A is marked with a maximum
wattage running at 6.6A. According to the Lenz Law of Induction, the dimensioning property of a transformer is the total
voltage, and not the wattage, of the secondary side of the transformer in a 50/60Hz series circuit system.
The consequence in a 2A-system is the wattage marked on a 6.6A/6.6A isolation transformer must generally be multiplied by
3.3 (6.6/2) to find the total wattage which can be supplied from the transformer without saturating.
Note
The same dimensioning method must be used for a CCR, as the transformer kVA-size marked on a CCR is normally
calculated at 6.6A, not at 2A. There are also more constraints to consider such as spare capacity. For more information,
contact ADB SAFEGATE for a complete CCR dimensioning procedure.
2.5 Identification on the fixture
A: Arrow. The arrow must always point to the center of the runway (CL).
B: ADB SAFEGATE logo.
C: Color of the optical cover. The color of the optical cover shows the color of the LEDs.
EREL / ERES
EREL / ERES
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