ML 121

Application

• halogen 6,6 A elevated omnidirectional low/medium intensity light with integrated transformer for stationary/mobile aerodromes/heliports

Files for download

pdf Data Sheet (3.43 MB)

pdf Certificates ÚCL ML 121 (390 KB)

pdf Certificates ÚCL ML 121 H (392 KB)

pdf Certificates MO AČR (543 KB)

pdf Certificates LU SR ML 121 H (439 KB)

pdf Certificates MAК (3.03 MB)

pdf Certificates SSGA ML 121 H (6.63 MB)

Light fixture function

• APP - approach centre line and crossbars light
• THR - runway threshold light
• END - runway end light
• TWY - taxiway edge light
• heliport lighting system FATO, TLOF, HAPP, TWY
• unserviceability light

Certificate basis

• ICAO AERODROMES ANNEX 14 Volume I-4rd
• FAA AC 150/5345-46B
• STANAG 3316
• MAK

Description/Properties

• primary outlets are lead out at the bottom part of the aluminum case through the light support
• optical system and integrated insulating transformer imbedded in aluminum case form one unit
• the lights are made of castings and formed pieces of aluminium alloys, a glass formed piece and connecting stainless steel parts that are resistant to salty environment and UV radiation
• support is an aluminium casting to which the marker is fixed
• it also serves as fixing of the light in the tube to the breaking coupling
• the colour dioptres are made of glass resistant to thermal shocks
• the glass dioptre is sealed in an aluminium annular ring and this unit is tied to the aluminium cover using two stainless steel clips

Construction

1. Dioptre with sealed annular ring
2. Stainless steel clips
3. Transformer aluminium cover
4. Breakable coupling threaded  2” NPSM
5. Primary outlets with connector FAA L-823 style 2
6. Primary outlets with connector FAA L-823 style 9

Connection / supplying

• powered via isolation transformer from the constant current regulator series circuit
• primary outlets are provided with connectors FAA L-823 style 2 and style 9
• the secondary outlet is led to the lamp cap prism Pk 30d

Mechanical parameters

• weight ~4,2 kg
• dimensions
  
  • heigh  237 ±1 mm
  • diametr 145 ±1 mm
• adjustability
  
  • horizontal 0°÷360°

Electrical parameters

• supplying current loop 6,6 A
• insulation resistance 50 MΩ
• total power demand ±10% acc. to alternatives 45/65/100 VA
• lamp nominal current 6,6 A
• electric strength 15 kV

Operating conditions

• level of protection IP 65
• climatic conditions ±55 °C
• ML 121 and ML 121 H resistance to wind and exhaust gases 480 km/hod.

Source of light

• halogen airport bulb 45/65/100 W/6,6 A with cap Pk 30d

Accessories

• accesories must be ordered separately (see also section “mounting system”)

Ordering codes/application

Type	el. power [W]	color	application	code
ML 121-APP-100-W	100	white	approach centre line and crossbars light	913-070
ML 121-THR-100-G	100	green	runway threshold light	913-071
ML 121-END-45-R	45	red	runway end light	913-072
ML 121-TWY-45-B	45	blue	taxiway edge light	913-076
ML 121 H-FATO-100-W	100	white	final approach and take-off area light	913-060
ML 121 H-TLOF-45-Y	45	yellow	touchdown and lift-off area light	913-061
ML 121 H-TLOF-65-G	65	green	touchdown and lift-off area light	913-094
ML 121 H-APP-100-W	100	white	heliport approach steady burning light	913-063
ML 121 H-TWY-45-B	45	blue	taxiway edge light	913-062
ML 121 UL-45-R	45	red	unserviceability light	913-068