| Typically mounted so the light level window faces the northern sky, the EM photocell provides an ON signal when the ambient light level drops below a preset “dark” setpoint. It then provides a signal OFF as the ambient light level rises above the preset “light” setpoint. The setpoint can be changed for specific applications by opening and closing the photocell’s aperture window. Normally, a lighting control panel or a power pack supplies power to the photocell. The photocell’s relay contact red wires are connected to the panel or to a low voltage controlled load. |
| Features • One set of normally open, isolated relay contacts; contacts are closed when sensed light level is below dark setpoint, open when light level is above light setpoint |
EM-24 AC Low Voltage Photocell by Wattstopper
$165.27
The EM is a low voltage photocell used for controlling exterior lighting. It works with Wattstopper power packs and lighting control panels (Lighting Integrator and LP series panels) by signalling a change in light levels to the panel.
- Low voltage photocell automatically turns lighting on and off
- Mounts on building exterior or roof
- Raintight gray plastic enclosure
- Compatible with all Wattstopper lighting control panels and power packs
- Simple to wire and install
- Adjustable aperture window for varying ON setpoint
Model #EM-24A2
Features
