Product finder
Product code
Product finder

Find the right E2S product


GNExB2LD2 LED Multifunction Beacon 1-21-054

Product Image
Product Image
Product Image
The GNExB2LD2 is a globally approved explosion proof high output LED multi-function beacon. The robust IP66 corrosion proof GRP enclosure and extended temperature range ensures suitability for all Zone 1, 2, 21 & 22 and Class I Div 2 hazardous location applications.
Request a quote for this product
Cable entries
Stopping plug/adaptor material
Guard material
Product version
Product option
Enclosure colour
Lens colour
Part Number:
Request Price or enquire about this product
Enquire about
LED Multifunction Beacon

Upgraded Product

  • New UL & cUL approval for Class I Zone 1 and Class I Division 2 applications
  • A4 316 stainless steel guard as standard


The GNExB2LD2 utilises an array of high power Cree® LED’s, orientated to optimise visibility in any direction. The beacon can be configured as a steady beacon with a light output of up to 174 candela. Alternatively, for warning applications, five flashing modes, with a light output of up to 338 candela. DC voltage versions feature three remotely selectable stages enabling multiple warnings to be signalled. The field replaceable colour filter enhances the light output and is constructed from UV stable PC. SIL1 compliant to IEC61508 (2010) as standard.


Datasheet Datasheet.pdf
Installation Manual D156-01-401-IS_Issue_2_GNExB2LD2_.pdf
INMETRO Installation Manual D156-00-401-IS-IEx_Issue_B_GNExB2LD2.pdf
IECEx certificate IECEx_UL_15.0003X_003_GNExB.pdf
ATEX certificate DEMKO_15ATEX1448X_Rev_4_GNExB.pdf
UL certificate of compliance UL_CoC-20211025-E245313_Vol2_Sec1_GNEx.pdf
INMETRO certificate IEx20.0049X_R1_GNExB2_GNExJ2.pdf
Ex EAC TR CU 012/2011 Certificate RU_-GB.65..01252_21.pdf
CCOE PESO CCOE_P452946_GNExB1_2.pdf
ECAS Ex Approval ECAS_21-07-16789-E21-07-035371-NB0007_GNExB.pdf
Ingress Protection certificate CoTC_104611_Issue_2_GNExS-L-B-J.pdf
Declaration of Conformity DC-037_Issue_H_GNExB_GNExJ.pdf
SIL1 Certificate T900-123-2_Beacons_SIL1.pdf
2D drawing (PDF) D156-05-201_Issue_1_GNExB2_.pdf
2D drawing (DWG) D156-05-201_Issue_1_GNExB2_.DWG
3D drawing (STEP) D156-05-201-3D_Issue_1_GNExB2_.STEP
Wiring Schematic D156-06-401_Issue_C_GNExB2LD2_.pdf
Nameplate Drawing D156-09-401_Issue_1_GNExB2LD2_.pdf
Pipe Mount Drawing (PDF) D217-05-231_Issue_B_GNExB2.pdf


  • Five flash rates: 1Hz, 1.33Hz, 2Hz, double and triple flash.
  • Automatic synchronisation on multi-beacon systems
  • High and low power Steady modes
  • Three remotely selectable stages/channels on DC versions.
  • A4 316 Stainless Steel guard included as standard
  • UV stable polycarbonate lens colour filter – field replaceable
  • 3 x cable entries
  • Stopping plugs included
  • Robust corrosion proof GRP (glass reinforced polyester) enclosure


Source: Array of 4 x High Power Cree® LED’s
Modes: 1Hz flash (60 fpm)
1.5Hz flash (90 fpm)
2Hz flash (120 fpm)
Double strike flash
Triple strike flash
High Power Steady
Low Power Steady
Eff. Intensity cd: 338 cd – 1Hz flash
Eff. Intensity cd: 174 cd – High Power Steady
Lens colours: Amber, Blue, Clear, Green, Magenta, Red & Yellow
Voltage DC: 24V dc (18-30Vdc)
Voltage AC: 115Vac (110-120Vac), 230Vac (220-240Vac)
In-rush @ 24Vdc: 1890mA within 0.22ms
LED life: 60,000 hours+
Ingress protection: IP rating per EN60529:IP66/67
Type rating per UL50E/NEMA250:4/4X/3R/13
Lens material: High impact Borosilicate glass
Enclosure material: UV stable GRP (glass reinforced polyester)
Enclosure colour: Natural Red
Enclosure finish: Natural – can be painted in alternative colours
Cable entries: Side: 3 x M20x1.5mm
Stopping plugs included
Stopping plugs: Brass, Nickel Plated or Stainless Steel
Terminals: 0.5 – 2.5mm² (20-14 AWG)
Duplicated terminals
Ground/Earth stud: M4
Line monitoring: Blocking diode included
EOL Min. 500 Ohm 2w, or 3k3 Ohm 0.5w resistor
or diode (DC versions) can be fitted
Line monitoring: Blocking diode included
EOL Min. 500 Ohm 2W, or 3k3 Ohm 0.5W resistor
or diode (DC versions) can be fitted
Enclosure volume: <2 litres
Installation temp: -50° to +70°C (-58°F to +158°F)
Storage temp: -50° to +70°C (-58°F to +158°F)
Relative humidity: 95% – Additional tropicalisation is recommended for applications where both high relative humidity and high ambient temperatures exist
Weight: 3.5kg/7.7lbs
*All candela data is representative of performance with clear lens at optimum voltage.

Current Consumption

Steady High Power
Nominal current:
Steady Low Power
Nominal current:
Flashing 1Hz
Nominal current:
In rush:
24Vdc 18-30Vdc 240mA 134mA 110mA 500mA 1890mA <0.22ms
115Vac 110-120Vac 50/60Hz 95mA 78mA 90mA 180mA 11150mA < 12ms
230Vac 220-240Vac 50/60Hz 48mA 37mA 45mA 100mA 670mA <12ms

Part Codes

Part Code: Identifier: Description:
Product type: GNExB2
Type: LD2 LED Multifunction Beacon
Voltage: DC024
24Vdc (18-30Vdc)
115Vac (110-120Vac)
230Vac (220-240Vac)
Cable entries: [e] A
3 x M20x1.5mm
2 × 1/2" NPT – adaptors
2 × 3/4" NPT – adaptors
2 x M25x1.5mm – adaptors
1 × 1/2" NPT – adaptor
1 × 3/4" NPT – adaptor
1 x M25x1.5mm – adaptor
3 × 1/2" NPT – adaptors
3 × 3/4" NPT – adaptors
3 x M25x1.5mm – adaptors
Stopping plug/
adaptor material: [m]
Nickel plated brass
Stainless steel
Guard material: [s] 1
A4 316 Stainless Steel
A4 316 St/St with Equip. Tag
Product version: [v] A UL, cUL, IECEx, ATEX, Ex EAC, PESO, INMETRO
Product option: [o] 1
Standard product
Custom configuration – contact E2S
Enclosure colour: [x] R
Special – contact E2S for alternative enclosure colours
Lens colour: [y] A, B, C
G, M, R
Amber, Blue, Clear
Green, Magenta, Red

Pole Mount Bracket Kit 2" St/St A4 (316)
Sunshade – St/St A4 (316)


  • UL/cUL/ULC – File ref: E245313
  • IECEx UL 15.0003X
  • TR-CU Ex EAC certificate: RU С-GB.НА65.В.01252_21
  • PESO CCOE certified: P452946
  • INMETRO IEx 20.0049X
  • SIL1 compliant to IEC61508 (2010)


The GNExB2LD2 is available as a plated assembly configured with a GNEx type alarm horn sounder and additional
GNEx type Xenon strobe or LED beacons with or without a GNExJ2 Ex d junction box. Contact E2S for further information.


  • IECEx / ATEX
    II 2G Ex db IIC T5 Gb Ta -50°C to +70°C
    II 2G Ex db IIC T6 Gb Ta -50°C to +65°C
    II 2D Ex tb IIIC T85°C Db Ta -50°C to +70°C
  • NEC Class / Zone
    Class I Zone 1 AEx db IIC T5 Ta -50°C to +70°C
    Class I Zone 1 AEx db IIC T6 Ta -50°C to +65°C
  • CEC Class / Zone
    Ex db IIC T5 Ta -50°C to +70°C
    Ex db IIC T6 Ta -50°C to +65°C
  • NEC / CEC Class / Div
    Class I Div 2 Group ABCD T5 Ta -50°C to +70°C
    Class I Div 2 Group ABCD T6 Ta -50°C to +65°C

Effective Candela lens colour factor

Amber Blue Clear Green Magenta Red Yellow
0.59 0.27 1.00 0.51 0.34 0.15 0.85

Multi-function patterns

Stage 1:
[On board]
Stage 2:
Stage 3:
Steady High Power Flashing 1Hz Triple Strike
Steady Low Power Flashing 1Hz Triple Strike
Flashing 1Hz 2x Flash 2Hz Triple Strike
Flashing 1.5Hz Flashing 2Hz Double Strike
Flashing 2Hz Triple Strike Triple Strike
Double Strike Steady High Power Triple Strike
Triple Strike Flashing 2Hz Double Strike
Note: Remote second and third stage on DC units only
Double strike: 150ms on, 150ms off x 2, 600ms off
Triple strike: 150ms on, 150ms off x 3, 600ms off

Upcoming Events

Nfpa conference expo