EMHB 1 EX ZONE 1, 21

Zones 1, 21
II 2G Ex eb ib mb op is IIC T5 Gb
II 2D Ex tb op is IIIC T95°C Db

for HT version
II 2G Ex eb ib mb op is IIC T4 Gb
II 2D Ex tb op is IIIC T121°C Db



EMHB 1 Ex luminaire is designed to illuminate, among others:

  • industrial halls and spaces classified as zones 1, 2, 21 and 22 of the explosion hazard of dust, gases,
  • vapors and mists of flammable liquids,
  • auxiliary rooms with high dustiness with the possibility of splashes of water, i.e. boiler rooms, hydro junctions, baths, garages, shelters, warehouses in open and closed areas,
  • workstation process lines, among others: chemical, petroleum, petrochemical, gas and wood
    industries, processing of loose mine, construction and food materials,
  • places with increased temperature.


Technical characteristics

  Parameter name   Value (unit)
 Supply voltage  90-250 VAC   140-250 VDC   50-60/0Hz – standard version

90-277 VAC   140-250 VDC   50-60/0Hz – on request

 Power  40-160 W [1]±10%
 Power factor  PF ≥ 0.95  **
 ATEX marking    II 2G Ex eb ib mb op is IIC T5 Gb

  II 2D Ex tb op is IIIC T95°C Db

For HT variant
  II 2G Ex eb ib mb op is IIC T4 Gb

  II 2D Ex tb op is IIIC T121°C Db

 IECEx marking Ex eb ib mb op is IIC T5 Gb
Ex tb op is IIIC T95°C DbFor HT variantEx eb ib mb op is IIC T4 Gb
Ex tb op is IIIC T121°C Db
 EU-type examination certificate


 OBAC 21 ATEX0134X
 IECEx Certificate number  IECEx OBAC 21.0002X
  Parameter name   Value (unit)
 EN IEC 60079-0:2018

EN 60079-18:2015+A1:2017

EN 60079-7:2015+A1:2018     EN 60079-28:2015

EN 60079-11:2012

EN 60079-31:2014

 Source of light  ultra-bright LED
 4000K ±10%

as an option 3000K, 5000K, 6500K ±10%    (other on request)

 Protection class  I
 Degree of protection  IP 66/67***  IK 10
 CRT  80 (other on request) ±10%


  Power   Class
 -32°C do +60°C  40 – 80 W  T5 / T95°C
 -32°C do +55°C  81 – 120 W
 -32°C do +50°C  121–160 W
 -32°C do +75°C  40–50 W HT  T4 / T121°C
 -32°C do +70°C  51-60 W HT
 -32°C do +65°C  61–80 W HT
 Weight  7 kg
 External dimensions  Ø390×134 mm
 Wire diameter  wire 0,2-6 mm
 Recommended tightening torque for

terminal block screws

 0,6-0,8 Nm
 Length of the stripped part of the wire  9 mm

[1]   According to the table of execution types – point. 3.1; Rated power with a tolerance of ± 5%

**  At 230VAC and 160W luminaire power;

***   When using a cable gland with a lower IP or a narrower operating temperature range, the parameters of the entire luminaire are reduced – see point 8.2 in instruction manual

Design and operation

  • body – aluminum alloy,
  • back cover – aluminum alloy,
  • pressure ring – aluminum alloy,
  • toughened glass,
  • LED light module,
  • as standard, the luminaire has two Ø20mm holes with a M20x1.5 cable gland and with an M20 stopping plug. Other configurations others on request,
  • pass-through clamps enabling the use of wires from 1mm2 up to 4mm2,
  • mounting eyelet,
  • luminous flux adjustment via 1-10V or DALI interface according to versions.


  • solid, compact structure,
  • simple, easy and quick assembly,
  • high resistance to industrial corrosive environment, very high luminous efficiency,
  • high-quality power supply and LED diodes,
  • very high tightness IP66 / 67,
  • resistant to UV radiation.


Luminaire designation:
EMHB 1 Ex * / ** / *** / ****
* luminaire power,
** lighting unit,
*** power supply assembly,
**** additional information (e.g. a different type of painting, additional accessories).

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