ZED offers a wide variety of electronic ballasts:

• ballasts for one, two or four lamp operation
• ballasts with integrated hour counter and UV-monitor
• ballasts with lamp filaments preheating
• ballasts with lamp current dimming
• microprocessor controlled ballasts with serial interface (RS485) for remote control via PLC (Programmable Logic Controller) or special ZED´s control units
• power range from 5W to 800W
• lamp current from 100mA to 8A
• several supply voltages: 115V AC, 230V AC, 12V DC and 24V DC

Please contact us if your lamp requires other technical data. Lamp and ballast can be adapted mostly.

Why electronic ballasts?

Electronic ballasts became the standard in the lighting industry. They allow significant energy and money savings in nearly all applications. The lamp operation is flicker free and the ballast produces virtually no noise or hum.

The incoming 50/60 Hz power (115 or 230 volts) is converted to high-frequency AC (usually 20 to 40 kHz). This leads to a constant gas discharge compared to conventional ballasts and prevents cathode flicker.

Electronic ballasts are more efficient than magnetic ballasts in converting input power to the proper lamp power. The operation of UV-lamps at higher frequencies reduces end losses, resulting in an overall lamp-ballast system efficiency increase of 15% to 20%.
Electronic ballasts are directly interchangeable with magnetic ballasts. They operate with most UV-lamps available.

Special electronic ballasts can operate two or four lamps reducing the total number of ballasts in a system. This also reduces installation and field wiring costs. Other advantages are reduced weight, quieter operation and reduced lamp flicker.

ballast features:

• instantaneous start without flicker for long lamp life time
• equipped with power factor correction (types with power >24W)
• CE-conform
• lamp faults are indicated by potential free relay contacts (alarm trigger); green (OK) and red (fault) LEDs to signalize ballast state

accessories for ballast operation:

• starting components for delayed power-on of electronic ballasts
• monitoring units for lamp function control via operation current monitoring
• control units for systems incorporating ZED microprocessor controlled ballasts

Electronic ballasts basically consist of the following functional units:

• filter - EMI-filter to attenuate conducted RF noise
  rectifier
• PFC (power factor correction) - provides sinusoidal line current
• charging capacitor
• frequency controller (for high-frequency conversion)
• power stage
• resonant tank
  and also
• fault logic (open-circuit / short-circuit protection)