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D1xB2LD2 Explosion Proof LED Multi-function Beacon 1-21-206

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The D1xB2LD2 is a globally approved explosion proof multi-function LED beacon. The robust IP66, Type 4/4X corrosion proof LM6 marine grade aluminium alloy enclosure ensures suitability for all Class I/II Div 1, Zone 1, 2, 21 & 22 applications.
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Explosion Proof LED Multi-function Beacon


The D1xB2LD2 beacons produce a high output LED 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 robust enclosure features a threaded flame path, four cable entries. Mounting options include surface via integrated lugs, pendant or by addition of optional multi direction stainless steel bracket. SIL1 compliant to IEC61508 (2010) as standard.



  • Choice of five flash rates: 1Hz, 1.33Hz, 2Hz, double and triple flash.
  • High and low power Steady modes
  • Three remotely selectable stages/channels on DC versions.
  • Automatic synchronisation on multi-beacon system
  • Stainless Steel guard included as standard
  • Field replaceable UV stable lens colour filter
  • Stopping plugs included
  • 4 x side cable entries, 1 x pendant conduit entry
  • Stainless steel fasteners
  • Duplicate cable terminations (in & out for daisy-chain installations)


Source: Array of 4 x High Power Cree® LED’s
Modes: 1Hz flash (60 fpm)
1.33Hz flash (80 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
Type rating per UL50E/NEMA250:4/4X/3R/13
Enclosure matl: Marine grade LM6 aluminum alloy
Enclosure finish: Chromate & powder coated finish – anti-corrosion
Enclosure color: Red (RAL3000) or Grey (RAL7038)
Lens material: High impact Borosilicate glass
Cable entries: Side: 2 × 3/4"NPT & 2 x M20x1.5
Pendant: 1 × 3/4"NPT
Stopping plugs: Brass, Nickel Plated or Stainless Steel
Terminals: 0.5 – 2.5mm² (20-14 AWG)
Line monitoring: Blocking diode included
EOL can be factory or user installed
Installation temp: -55 to +80°C [-67° to +176°F]
Storage temp: -55 to +80°C [-67° to +176°F]
Relative humidity: 95% – Additional tropicalisation is recommended for applications where both high relative humidity and high ambient temperatures exist
Weight: 3.2kg/7.1Ibs

Current Consumption

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

Part Codes

Part Code: Ident.: Description:
Product type: D1xB2
Type: LD2 Multi-function LED beacon
Voltage: DC024
24V dc (18-30Vdc)
115Vac (110-120Vac)
230Vac (220-240Vac)
Cable entries: [e] M Side: 2 × 3/4” NPT & 2 x M20x1.5
Pendant: 1 × 3/4” NPT
Stopping plug material: [m] B
Nickel plated brass
Stainless steel
Lens guard & tag: [s] 1
A2 304 Stainless Steel
A4 316 Stainless Steel
A2 304 St/St with Equip. Tag
A4 316 St/St with Equip. Tag
Version: [v] A1
UL, cUL, ULC, IECEx, ATEX – Tropicalised
Enclosure: [x] R
Red RAL3000
Grey RAL7038
Special colour – contact E2S
Lens colour: [y] A, B, C
G, M, R
Amber, Blue, Clear
Green, Magenta, Red
SP65-0001-A2 or A4
SP65-0003-A2 or A4
Multi angle wall bracket St/St A2 (304) Red or Grey
Multi angle wall bracket St/St A4 (316) Red or Grey
Pole Mount Bracket Kit 2" St/St A2 (304) or A4 (316)
Sunshade – St/St A2 (304) or A4 (316)
SP77-0015-R or G
SP77-0016-R or G
Spare Pack of 2 x Surface Mount Lugs Red or Grey
Spare Pack of 2 x Bracket mount hole plugs Red or Grey


  • UL/cUL – File ref: E245313
  • IECEx Certificate: IECEx ULD 19.0006X
  • ATEX Certificate: DEMKO 19 ATEX 2009X
  • SIL1 compliant to IEC61508 (2010)
  • CSFM listing: 7300-2279:0508
  • Ex EAC certified: ЕАC RU C-GB.АА71.В.00273/20


  • ATEX / IECEx
    II 2G Ex db IIC T5 Gb Ta -55°C to +80°C
    II 2G Ex db IIC T6 Gb Ta -55°C to +70°C
    II 2D Ex tb IIIC T100°C Db Ta -55°C to +80°C
  • NEC Class / Zone
    Class I Zone 1 AEx db IIC T5 Ta -55°C to +80°C
    Class I Zone 1 AEx db IIC T6 Ta -55°C to +70°C
    Zone 21 AEx tb IIIC T100°C Ta -55°C to +80°C
  • CEC Class / Zone
    Ex db IIC T4 Ta -55°C to +80°C
    Ex db IIC T5 Ta -55°C to +70°C
    Ex tb IIIC T100°C Ta -55°C to +80°C
  • NEC / CEC Class / Div
    Class I Div 1 Group ABCD T5 Ta -55°C to +80°C
    Class I Div 1 Group ABCD T6 Ta -55°C to +75°C
    Class II Div 1 Group EFG T4 Ta -55°C to +80°C

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 1.33Hz 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

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