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D1xB2XH1 UL1971 Auto Sync Explosion Proof 86cd Strobe

Search filters:
  • Public mode fire use UL1971, UL1638 & CAN/ULC-S526
  • Auto synchronized as per UL1971
  • 86.37cd - UL1971 Public mode fire
  • Operating current only 635mA
  • In rush limited to 817mA for 5ms
  • Choice of four flash rates
  • Marine grade aluminum enclosure
  • Ingress Type 4/4X/3R/13, IP66
  • High impact Borosilicate glass lens
  • Duplicate, pluggable terminations
  • Diode protected for supervised circuits
  • Conduit mount via 3/4" NPT entry
  • Surface mount via user installed lugs
  • Dual 3/4"NPT and dual M20 side entries
  • Supplied with stopping plugs
  • Optional multi-position wall bracket

 The explosion proof D1xB2XH1 is an auto-synchronizing Xenon Strobe light/beacon tested to UL1971 and suitable for public mode fire alarm, ADA compliant, hearing impaired applications. The unit is UL/cUL approved for Class I Div 1, Class II Div 2, Class I Zone 1 suitable for both gas and dust environments.

The lightweight, marine grade, enclosure has been designed to create the optimal fire signal. Its innovative construction includes both conduit or surface mounting capabilities - without the need for any additional accessories. For complete flexibility an optional stainless-steel bracket enables the light to be rotated and positioned in any orientation.
Multiple D1xB2XH1 units will auto-synchronize when powered from the same power source; removing the need for any additional sync modules on the circuit.



Xenon Strobe


10 Joules


1Hz flash (60 fpm)

1.3Hz flash (80 fpm)

1.5Hz flash (90 fpm)

Double flash (120 fpm)

Eff. Intensity cd:

86.37 cd UL1971 Public mode fire

Peak Intensity cd:

1,000,000 cd


Flash rates synchronize for a minimum of 2 hours per UL1971


24V dc (20-28V dc)


<817mA within 5ms

Ingress protection:

IP rating per EN60529:IP66

Type rating per UL50E/NEMA250:4/4X/3R/13

Enclosure material:

Marine grade LM6 aluminum alloy

Enclosure color:

Red (RAL3000)

Lens material:

High impact Borosilicate glass

Cable entries:

2 x 3/4"NPT, 2 x M20x1.5, 1 x 3/4"NPT

Stopping plugs:

Nickel plated brass plugs included


0.5 - 2.5mm² (20-14 AWG)

Line monitoring:

Blocking diode included

EOL can be factory or user installed

Operating 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



Current Consumption

Nominal Voltage


Flash Rate Setting

Nominal Operating Current 

24V dc

20-28V dc

1Hz (60fpm)

1.3Hz (80 fpm)

1.5Hz (90fpm)

Double (120fpm)





Note: 1Hz, 1.3Hz and 1.5Hz flash rates - Public Mode Fire

Part Codes




Product type: D1xB2XH1 Xenon Strobe Beacon
Voltage: DC024 24V dc (20-28Vdc)
Cable entries: [e] M 2 x 3/4” NPT
2 x M20x1.5
1 x 3/4” NPT
Stopping plug material: [m] N Nickel plated brass
Lens Guard: [s] 0 No lens Guard
Version: [v] H1 UL, cUL, ULC - UL1971
Enclosure: [x] R Red RAL3000
Lens colour: [y] C Clear
e.g: D1xB2XH1DC024MN0H1R/C D1xB2XH1 Xenon Strobe, 24Vdc
nickel plated brass stopping plugs,
UL, cUL approved - UL1971
Red enclosure with Clear lens
Accessories: SP77-0001-A2-R Multi angle wall bracket
304 Stainless Steel
Spares: SP77-0002 Xenon flash tube assembly
  SP77-0003 XH1 PCBA including flash tube
  SP77-0005 Pack of 2 x Surface Mount Lugs
  SP77-0006 Pack of 2 x Bracket mount hole plugs


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