Electronic Lamp Control - ELC


The ELC electronic lamp controls have been specifically developed for operating medium-pressure UV discharge lamps. eta plus offers two different series for the electronic control of UV lamps from 3 kW up to 35  kW. ELC electronic lamp controls allow for a simple PLC connection and optimise process reliability while reducing operating costs. 


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ELC PE series


Based on the proven switching concepts of our original N series, the PE series provides digital control via fieldbus at superior power density in a compact and efficient design. The fieldbus controller facilitates extensive on-site diagnostics and significantly reduces cabling.


  • Rated output: 5 kW to 35 kW
  • Fieldbus control
  • Superior power density
  • Protection to IP20
  • Air-cooled

ELC X series


The result of intensive research, development and many years of market experience. Developed for minimum space requirements and demanding environments. The X series combines excellent mains compatibility with a highly innovative cooling concept for reliability and  flexible installation that is independent of the control cabinet. Comprehensive diagnostic capabilities via fieldbus and the eta plus safety concept complete the product.


  • Rated output: 4 kW, 6 kW, 8 kW, 12 kW, 16 kW, 24 kW (36 kW under development)
  • Fieldbus control
  • wide input voltage range from 360 V – 528 V
  • significantly reduced harmonic distortion of the mains power THDi
  • Protection IP 54
  • innovative air-cooling system
  • operation of lamps and LED modules possible

Performance of the ELC X series

  • change from lamp to LED possible
  • B version with special coating for marine application
  • max. ambient temperature 55°C
  • up to 96% electrical efficiency
  • ELC has a  power factor > 0.97. It can be operated directly from the mains without any additional compensation
  • power factor correction (PFC) ensures that the harmonic content of the mains current is < 5%
  • the lamp emits a flicker-free radiation and has infinitely adjustable dimming over approx. 20-100% of the nominal electrical output.
  • configuration, control and monitoring are achieved by means of a Profibus or Modbus controller, and the ELC X series can be easily integrated in the system control
  • piling concept up to 12 modules
  • the output is automatically adjusted to compensate for any variations in the  mains voltage
  • safe in case of short circuits or idle running
  • integrated electronic lamp ignition
  • integrated electronic control and monitoring systems
  • integrated earth leakage detection
  • fully insulated lamp output
  • air cooled

Technical data

  • Supply voltage: 2 x 400 V ±10% or 2 x 480 V ±10%
  • lamp output: 4 to 24 kW depending on unit type
  • dimming range: around (approx.) 20–100%
  • power factor: approx.0.97
  • Protection class: IP 54
  • Dimensions:
    X4: 125 x 470 x 260 mm (H x W x D)
    X6: 125 x 470 x 320 mm (H x W x D)
    X8: 125 x 470 x 420 mm (H x W x D)
    X12: 125 x 470 x 420 mm (H x W x D)
    X24: 250 x 470 x 420 mm (H x W x D)
  • Weight: 11 to  42.2 kg depending on unit type




All ELC are based on a high frequency resonant power converter to precisely power the medium pressure lamps. This topology combines highest efficiency at lowest electromagnetic interference. The fully insulated lamp output allows perfect lamp matching as

Your success

Our customer-specific in-house lamp development permits the optimum component match for your UV system. Coupled with the consistent burn-in of each ELC this enables your UV system to achieve highest lamp service lifetime.

System reliability

  • smart soft ignition
  • highest lamp lifetime


  • low heat exhaust
  • highest ambient temperature
  • smallest space requirements
  • energy savings

Stepless lamp control

  • dimming range 20% to 100%
  • precisely controlled and monitored lamp status

Mains compliance

  • high power factor
  • low harmonic distortion
  • symmetric load
  • no inrush current
  • no over-current during start-up of UV lamp

Safety features

  • insulated lamp output
  • integrated insulation measurement and earth fault detection
  • short circuit proof