Flameproof lamp type OLD
The flameproof LED lamp type OLD with an intrinsically safe control circuit is designed to illuminate hazardous areas at risk from methane and/or coal dust explosion, classified in group I, including underground mines.
The LED light source is fitted with a flameproof enclosure. The connection power supply terminals are reinforced type terminals. The connection terminals make it possible to connect supply cable wires and control wires as well as rectifier diode closing the control circuit. The power supply voltage of the LEDs can be disconnected by an additional switch located at the bottom of the enclosure. The lamp has one, two or three cable outlets enabling a straight-through power supply and/or branching the power supply voltage.
A searchlight version is available.
Characteristics
- intrinsically safe control circuit,
- available option with supply voltage of 42-250V AC,
- small overall dimensions,
- luminous flux up to 2000 lm, 2500 lm, 3000 lm, 3500 lm,
- also available as a searchlight,
- long service life,
- ingress protection rating IP65.
Explosion protection
Marking
II 2GD Ex d mb [ia] IIA T4
I M2 Ex d [ia] I Mb
Ambient temperature
-20°C ≤ Ta ≤ +40°C
Certificate
OBAC 07 ATEX 197
Rated values
Ingress protection rating
IP65
Supply voltage
OLD– 1*.* 42 V AC
OLD– 2*.* 85-230 V AC
OLD– 3*.* 24 V AC/DC
Supply voltage frequency
50/60 Hz
Dimensions
250x250x100 mm
Weight
12 kg
Enclosure material
Steel body. Tempered glass window.
Coding
| O | L | D | – | * | * | . | * | / | * | * |
Switch
O – no switch
P – with lamp power switch
G – with a lamp power switch or lamp string and protection wire continuity control
K – with a lamp power switch and protection wire continuity control
Cable inlets (1 to 3 in the side or rear walls – according to fig. 1-4)
O – internal
1 – outer side M36 (Ø15-18; 18-21; 20-24; 22-26; 25-28)
2 – outer rear M36 (Ø15-18; 18-21; 20-24; 22-26; 25-28)
3 – outer side M28 (Ø8-10; 9-12; 11-14; 13-16; 15-18; 17-19)
4 – outer rear M28 (Ø8-10; 9-12; 11-14; 13-16; 15-18; 17-19)
Power
1 – 30 W / 3000 lm (version with LED diodes)
2 – special version
Type
O – a lamp
R – reflector Supply voltage 1- 42 V AC 2- 85-250 V AC 3- 24 V AC / DC 4- 42 V, 230 V AC
Supply voltage
1 – 42 V AC
2 – 85-250V AC
3 – 24 V AC / DC
4 – 42 V, 230 V AC