Airfield Lighting Systems single switching unit for switching individual lighting fittings.
Widely used for stop-bar control.
The ALS SSU is available in either Fail-On or Fail-Off versions.
The ALS SSUs enables the suppression of any LED or incandescent lamp from 1W to 100W that uses a 6.6A supply down to 1A.
The SSU is also available in the form of a combined switching transformer with both items cast in the same encapsulated unit.
Features
- Encapsulated in a homogenous high quality polyurethane resin
- Uses 31% less energy than other switching devices when the lamps are suppressed
- Current ramping as standard, gives longer lamp life
- Interchangeable with any other manufacturers’ lamp suppression unit
- Available in Fail-On and Fail-Off versions
- 12hr minimum water testing prior to despatch
- Ambient temperature range -20°C to +55°C
- Resistant to acid and alkaline soils, oils, fuels and de-icing fluids
- Materials used are also termite and rodent proof
- IP rating equivalent to IP68
Specification
- Switching signal voltages 12V to 72V DC – Half-wave control signals must not be used
- Switching signal current 2 mA at 48V DC
- Switching signal to transformer secondary isolation voltage of 2500V AC
- SSU Control signal cables 2 core, 2.5mm²
- Current to the lamps is ramped up and down more slowly than the regulator changes its firing angle (150ms)
- Maximum rms voltage of 33V when open circuit
Applications
- Military or civil airport constant current circuits.
- Taxiway routing
- Stop Bar control
Options
- 2 pin plug and socket control leads
AGLST Compatability | Size | Weight |
|---|---|---|
30- 100 Watts | L: 125mm | 1.1kg |
Diameter: 65mm |
