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Product Specifications

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Explosion Proof Specifications

Model number

QEAL1

Type

Low intensity B type

Light source

High intensity light emitting diodes(LED)

Light color

Red

Luminous intensity

50cd±25%

Housing color

Red

Light function

Steady

Rated voltage

DC12V, DC24V, AC110V-220V

Power consumption

30W

Materials

Lens : Tempered Glass,  Housing : Al,  Protection cage : STS316L,  Cover : Al

Weight(Approx.)

3.9Kg

Cable entry

NPT1/2

Certificate

KCs

Protection rating

IP66

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General Product Specifications

Model number

QEAL1

Range of 

operating voltage

DC12V, DC24V

AC100V~240V

Ex mark

Ex d II C T4, IP66

Ambient operating 

temperature

–40°C ≤ Ta ≤ 60°C

Explosion proof 

Zone

Zone 2

Protection rating

IP66

Zone 

definitions(Gas)

Zone 1

High risk gas/vapour

(Gas)

Zone 2

Medium risk gas/vapour

(Gas)

Group 

definitions(Gas)

GROUP II A Acetone, Petrol, Methanol, Propane, Toluene

GROUP II B Ethylene, City gas
GROUP II C Hydrogen, Acetylene, Carbon sulphide

Maximum surface 

temperature of 

electrical equipment

T1

450°C

T2

300°C

T3

200°C

Zone 

definitions(Dust)

T4

135°C

T5

100°C

Group 

definitions(Dust)

T6

85°C

Zone 21

High risk powder/dust

(Dust)

Zone 22

Medium risk powder/dust

(Dust)

Group 

definitions(Dust)

GROUP II A

Ignitible fibers/flyings(more than 0.5mm)

GROUP II B Non-conductive dusts
GROUP II C Conductive dusts

Classification of Aviation Obstruction Lights

Application Areas of Aviation Obstruction Lights

Objects inside the 
Obstacle Restriction Area

Obstacle certified for use at night that is 60m from the ground and is located within the Obstacle Restriction Area of 

an airport

Objects outside the 
Obstacle Restriction Area

Obstacle that is 150m from the ground
Chimneys, steel towers, poles, frame structures, electricity pylons, or  wind turbines that are 60m from the ground

Low intensity A type 

or low intensity B type 

obstruction light

Obstacle that is 150m from the ground and is located within the Obstacle Restriction Area

Low intensity A type model is installed on ab obstacle that has limited mobility such as a boarding bridge

Low intensity C type 

obstruction light

Low intensity C type model(Blue/flashing) is installed on an emergency vehicle or security vehicle operated inside the airport
Low intensity C type model(Yellow/flashing) is installed on a normal vehicle or mobilize object that is operated inside the airport

Low intensity D type 

obstruction light

Low intensity D type model(Yellow/flashing) is installed on escort vehicles that are operated inside the airport

Medium intensity A type 

obstruction light

Medium intensity A type warning light(White/flashing) is installed in areas where trees or buildings are widespread

Obstacle that is 45m from the ground and is located within the Obstacle Restriction Area or an obstacle that is 150m from 
the ground and is located outside the Obstacle Restriction Area

Medium intensity B type 

obstruction light

Medium intensity B type warning light(Red/flashing) is installed in areas where trees or buildings are widespread.

Obstacle that is 45m from the ground and is located within the Obstacle Restriction Area or an obstacle that is 150m from 

the ground and is located outside the Obstacle Restriction Area

Medium intensity C type 

obstruction light

Medium intensity C type warning light(Red/steady) is installed in areas where trees or buildings are widespread

Obstacle that is 45m from the ground and is located within within the Obstacle Restriction Area or an obstacle that is 150m 

from the ground and is located outside the Obstacle Restriction Area

Medium intensity C type warning light(Red/stead) cannot be used with other warning lights

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