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Determination of allowable RL1 and RL2
maximum capacity depends on whether the
unit is configured as a two or three internal
head unit as the remote load PCB fuses are
shared with the internal lamps.
The schematic below illustrates the PCB
load routing of the unit where L1+, L2+ and
L3+ represent internal lamp loads and RL1+
and RL2+ are the remote lamp loads:
4. Determining allowable remote lamp loads
for RL1 and RL2:
- For two head units, subtract twice the lamp
wattage rating from the unit total available
power.
Equally divide the remaining
capacity between RL1 and RL2.
- For three head units, internal lamp 1 and
internal lamp 3 are on the RL1 fused circuit.
Internal lamp 2 is connected to the RL2
fused circuit.
For RL1 circuit, subtract twice the internal
lamp rating from half the unit wattage and
the remainder is the available remote load
capacity.
For RL2 circuit, subtract one internal lamp
wattage from half the unit wattage and the
remainder is the RL2 remote capacity.
Example:
A 300 watt unit is configured with 3 internal
12 watt heads. The total available wattages
for RL1 and RL2 are calculated as follows:
Philips Lighting North America Corporation
200 Franklin Square Drive
Somerset, NJ 08873, USA
Phone: 855-486-2216
www.philips.com/luminaires
RL1 Max Watts = (Unit Wattage / 2) – (2 * Internal
Lamp Wattage)
= (300/2) - (2*12)
= 150 – 24
= 126 (Watts)
RL2 Max Watts = (Unit Wattage / 2) – (1 * Internal
Lamp Wattage)
= (300/2) – (1*12)
= 150 – 12
= 138 (Watts)
Ensure total unit load (including internal
lamps) does not exceed unit rating including
internal lamp loads.
COMPLETING UNIT INSTALLATION
1. Adjust head(s) to illuminate desired area(s).
2. Close cover and latch.
wires and membrane switch cable remain
inside unit and that the cover does not pinch
wires when closed. Hand tighten the two
thumb screws to finalize cover closure.
Philips Lighting Canada Ltd.
281 Hillmount Road,
Markham, ON, Canada L6C 2S3
Phone: 800-668-9008
www.philips.com/luminaires
Ensure electrical
9140053342 February 2016
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