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STExB2X21 Xenon Strobe Beacon 21 Joule 1-21-174

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The STExB2X21 is an explosion proof 21 Joule Xenon beacon. The robust IP66 corrosion proof 316L stainless steel enclosure ensures the STExB2X21 is suitable for all Zone 1, 2, 21 & 22 hazardous location signalling applications.
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Type
Voltage
Cable Entry Type
Stopping plug/adaptor material
Guard Material
Version
Enclosure Color
Lens Color
Part Number:
STExB2
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Xenon Strobe Beacon 21 Joule

Description

The STExB2X21 beacons produce a high output Xenon flash required for effective signalling in environments with elevated levels of ambient light. The field replaceable colour filter enhances the strobe and is constructed from UV stable PC. The stainless steel enclosure features a threaded flame path, four cable entries and a large termination area – all of which significantly reduce installation time. SIL1 compliant to IEC61508 (2010) as standard.

Downloads

Datasheet Datasheet.pdf
Installation Manual D199-00-251-IS_Issue_1_STExB2X21_.pdf
IECEx certificate IECEx_ULD_16.0017X_Issue_0_STEx.pdf
ATEX certificate ULD_16ATEX1466X_Issue_0_STEx.pdf
Russian Ex certificate __RU_C_GB.71.B.00109.pdf
Declaration of Conformity DC-070_Issue_A_STEx.pdf
SIL1 Certificate T900-123_Beacons_SIL1.pdf
2D drawing (PDF) SK0392_Issue_A.pdf
2D drawing (DWG) SK0392_Issue_A.DWG
3D drawing (IGS) SK0392-3D_Issue_A.IGS
3D drawing (STEP) SK0392-3D_Issue_A.STEP
Pipe Mount Drawing (PDF) D217-05-281_Issue_B_STExB2.pdf

Features

  • Robust corrosion proof 316L stainless steel enclosure
  • Ingress protection IP66
  • Automatic synchronisation on multi-beacon systems
  • Choice of three flash rates: 1Hz, 1.5Hz and double flash
  • DC units feature remotely selectable flash rate
  • User replaceable Xenon tube mechanically secured against shock & vibration
  • 316 Stainless Steel guard included as standard
  • Field replaceable UV stable lens colour filter
  • 316 Stainless steel stopping plugs included
  • 4 x M20 cable entries
  • Stainless steel fasteners
  • Duplicate cable terminations
    (in & out for daisy-chain installations)
  • SIL1 compliant to IEC61508 (2010)

Specification

Energy: 21 Joules (21Ws)
Flash rate: 1Hz (60 fpm), 1.5Hz (90fpm) & double 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: EN60529: IP66
Enclosure matl: 316L Stainless Steel
Enclosure finish: Chromated & powder coated
Colour: RAL3000 Red
Cable entries: 4 x M20 ISO (3 x stopping plugs included as std)
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
Grounding stud: M5
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: 6.0kg/13.23lbs
*All candela data is representative of performance with clear lens at optimum voltage.
Example part code: STExB2X21AC230 [e][m][s][v][x]/[y]
STExB2X21AC230AS2A1R/R
STExB2X21 21 Joule Xenon Strobe, 230V ac,
4 x M20 entries, Stainless Steel stopping plugs,
A4 316 SS dome 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 464mA
230V ac 50Hz 250mA

Part Codes

Version: Part code:
Product type: STExB2
Type: X21 Xenon Beacon – 21 Joule
Voltage: DC024
DC048
AC115
AC230
20-28V dc
42-54V dc
115V ac +/-10%
230V ac +/-10%
Cable Entry Type:[e] A
B
C
D
E
F
G
H
I
J
4 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
Adaptor/Stopping
plug material: [m]
B
N
S
Brass
Nickel Plated
Stainless Steel (standard)
Guard material & tag: [s] 1
2
3
4
A2 304 Stainless Steel
A4 316 Stainless Steel (default)
A2 304 St/St with Equip. Tag
A4 316 St/St with Equip. Tag
Product version: [v] A1 IECEx & ATEX Group II 2G/D Zone 1, 2, 21 & 22
Enclosure colour: [x] R
S
Red
Special (contact E2S)
Lens colour: [y] A
B
C
G
M
R
Y
Amber
Blue
Clear
Green
Magenta
Red
Yellow
Accessories: SP65-0001-A2
SP65-0001-A4
SP65-0003-A2
SP65-0003-A4
Pole Mount Bracket Kit 2" St/St A2 (304)
Pole Mount Bracket Kit 2" St/St A4 (316)
Sunshade – St/St A2 (304)
Sunshade – St/St A4 (316)

Approvals

  • IECEx ULD 16.0017X
    IEC 60079-0 : 2011
    IEC 60079-1 : 2014
    IEC 60079-31 : 2013
  • ATEX DEMKO 16 ATEX 1466X
    EN 60079-0 : 2012 + A11 : 2013
    EN 60079-1 : 2014
    EN 60079-31 : 2014
  • TR-CU Ex EAC certificate: RU C-GB.AA71.B.00109

Assemblies

The STExB2X21 is available as a plated assembly configured with Xenon strobe or LED beacons with a STExJ2 Ex d junction box. Contact E2S for further information.

Coding

  • Ex db IIC Gb T4 Ta -50°C to +65°C
  • Ex db IIC Gb T3 Ta -50°C to +70°C
  • Ex tb IIIC Db T135°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

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