Fluorescent Lighting Ballast Control Types
In addition to offering lighting ballasts with different low-end dimming levels, we offer dimming ballast with a variety of industry-standard control options.
|
|
3-wire
Three-wire control is a line-voltage phase-control dimming method. Along with Hot and Neutral, the dimming signal is communicated via a third wire called Dimmed Hot. All three wires are rated Class 1 and can be run within the same conduit. Three-wire control is the preferred dimming technology - it is stable over long wire runs, allows for maximum circuit loading, and is very easy to wire.
|
|
|
2-wire
Two-wire is a line-voltage phase-control dimming method. The ballast receives the dimming signal through the Dimmed Hot wire. Intended for small-scale retrofit applications, the two-wire control method is often the easiest way to implement dimming in existing fluorescent fixtures.
|
|
|
0-10V
Zero to ten volt control is a low-voltage DC dimming method. Power wires are rated Class 1 and control wires are rated Class 2. This separation allows multiple circuits to use the same dimming signal without additional power equipment. Zero to ten volt control is not recommended for dimming below 10%, as fixture-to-fixture tracking can be significantly affected by control wire length.
|
|
|
Infrared (IR)
Infrared control is a wireless dimming method that uses a handheld remote control or personal digital assistant (PDA) to provide dimming. Infrared control allows for simple personal control of individual fixtures or groups of fixtures. In addition, IR-controllable ballasts can be trimmed to reduce the maximum light output.
|
Related Articles:
