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1-21-052

GNExB2X21 Xenon Strobe Beacon

The GNExB2X21 is an IECEx & ATEX approved explosion proof 21 Joule Xenon beacon. The robust IP66 corrosion proof GRP enclosure and extended temperature range ensures the GNExB2X21 is suitable for all Zone 1, 2, 21 & 22 hazardous location signalling applications.

The GNExB2X21 beacon produces over 900cd effective - a very high output Xenon strobe flash as required for efficient signalling in environments with elevated levels of ambient light. The optically enhanced field replaceable colour filter optimises the strobe output and is constructed from UV stable PC. The GRP enclosure features a threaded flame path, triple cable entries and a large termination area - all of which significantly reduce installation time.

Specification

 
Energy: 21 Joules (21Ws)
Flash rate: 1Hz (60 fpm), double flash & alternate flash
Peak Candela: 2,100,000 cd - calculated from energy (J)
Eff. Intensity cd: 1,050 cd - calculated from energy (J)
Peak Candela: 181,491 cd - measured ref to I.E.S
Eff. Intensity cd: 902.69 cd - measured ref to I.E.S
Lens colours: Amber, Blue, Clear, Green, Magenta, Red & Yellow
Voltages DC: 24vdc; 48Vdc
Voltages AC: 115Vac; 230Vac
Ingress protection: IP66
Enclosure matl: UV stable GRP (glass reinforced polyester)
Colour: Natural Red - can be provided in alternative colours
Cable entries: 3 x M20 ISO (2 stopping plugs inc.)
Adaptors to M25, 1/2" & 3/4" NPT can be specified
Terminals: 0.5 - 2.5mm² (20-14 AWG)
Enclosure volume: <2 litres
Line monitoring: Blocking diode included
EOL Min. 500 Ohm 2w, or 3k3 Ohm 0.5w resistor
or diode (DC versions) can be fitted
Tube life: Emissions are reduced to 70% after 5 million flashes
Temperature range: -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.
 
Example part code: GNExB2X21AC230 [e][m][s][v][x]/[y]
GNExB2X21AC230AB1A1R/R
GNExB2X21 21 Joule Xenon Strobe Beacon, 230V ac,
3 x M20 entries, Brass stopping plugs,
A2 304 SS guard, IECEx & ATEX approved,
Red enclosure, Red lens

Current Consumption

Version: Voltage: Current:
24V dc 20-28V dc 944mA
48V dc 42-54V dc 428mA
115V ac 50Hz/60Hz +/-10% 464mA
230V ac 50Hz/60Hz +/-10% 250mA

Part Codes

Version: Part code:
Product type: GNExB2
Type: X21 Xenon Beacon - 21 Joule
Voltage: DC024
DC048
AC115
AC230
20-28V dc
42-54V dc
110-125V ac
220-240V ac
Cable Entry Type:[e] A
B
C
D
E
F
G
H
I
J
3 x M20x1.5mm
2 x 1/2" NPT - adaptors
2 x 3/4" NPT - adaptors
2 x M25x1.5mm - adaptors
1 x 1/2" NPT - adaptor
1 x 3/4" NPT - adaptor
1 x M25x1.5mm - adaptor
3 x 1/2" NPT - adaptors
3 x 3/4" NPT - adaptors
3 x M25x1.5mm - adaptors
Adaptor/Stopping
plug material: [m]
B
N
S
Brass
Nickel Plated
Stainless Steel
Guard material: [s] 1
2
3
4
A2 304 Stainless Steel
A4 316 Stainless Steel
A2 304 St/St with Equip. Tag
A4 316 St/St with Equip. Tag (304)
Product version: [v] A1 IECEx & ATEX Group II 2G/D Zone 1, 2, 21 & 22
Enclosure colour: [x] R
S
Red
Special - contact E2S for alternative enclosure colours
Lens colour: [y] A
B
C
G
M
R
Y
Amber
Blue
Clear
Green
Magenta
Red
Yellow

Assemblies

The GNExB2X21 is available as a plated assembly configured with up to 4 x Xenon strobe beacons with a GNExJ2 Ex d junction box or 5 x beacons without a junction box. Contact E2S for further information.

Coding

  • II 2G Ex db IIC Gb T4 Ta -50°C to +70°C
  • II 2D Ex tb IIIC Db T130°C Ta -50°C to +70°C

Effective Candela lens colour factor

 
Amber Blue Clear Green Red Yellow
0.51 0.12 1.00 0.49 0.15 0.86