Advanced Protection TWL User Manual
Page 9
TOWER
LIGHT
CONTROLLER
PHOTOCELL
TOWER
LIGHT
CONTROLLER
PHOTOCELL
Figure 4
Figure 5
Page 6
Standard Photocell SPD Installation
Optional Photocell SPD Installation
To Tower Light
Controller
Loop on Protected side,
not Unprotected side
(The orientation of the unit pictured above is upside down)
"Protected" side
Note Schematic on side
From Photocell
The unprotected side has the ground lug
Protected
Side
Protected side towards
tower light controller
SPD has a Protected and an Unprotected side.
• Unprotected side should be towards
photocell.
• Protected side should be towards tower
light controller.
Unprotected side towards photocell