D2xB1LD2-H UL1971 Haz Loc Synchronized LED Light

  • Public mode fire use UL1971, UL1638 & CAN/ULC-S526
  • Synchronized for over 2 hours per UL1971
  • 38.38 eff. candela - UL1971 Public mode fire
  • 180 eff. candela - UL1638 general signaling
  • Ultra low operating current of 99.5mA
  • In rush limiting circuit <2A
  • Choice of three flash rates: 1Hz, 1.3Hz, 2Hz
  • Marine grade aluminum enclosure
  • Ingress protection Type 4/4X/3R/13, IP66
  • High impact resistant Borosilicate glass lens
  • Duplicate, pluggable cable terminations
  • Conduit mounting via integral 3/4" NPT entry
  • Surface mounting via user installed lugs
  • Dual 1/2"NPT and dual M20 entries
  • Supplied with haz loc rated stopping plugs
  • Compact footprint


  • UL/cUL File ref: E245313
  • IECEx certficate: IECEx ULD 14.0004X
  • ATEX certificate: DEMKO 14 ATEX 4786493904X
  • CSFM listing: 7300-2279:0500
D2xB1LD2-H UL1971 Haz Loc Synchronized LED Light
Ul Csfm Ul_badge_-_certified Iecex-approval Atex-approval Culs-approval Ce-approval

D2xB1LD2-H UL1971 Haz Loc Synchronized LED Light

The haz loc D2xB1LD2-H is an auto-synchronizing LED light/beacon tested to UL1971 suitable for public mode fire alarm, ADA compliant, hearing impaired applications. The unit is UL/cUL approved for Class I Div 2, Class II Div 2, Class I Zone 2/22 as well as IECEx and ATEX certified for Zone 2 and 22 hazardous area applications.

The D2x1BLD2-H utilizes an array of high power Cree® LED's, orientated to optimize visibility in any direction. Multiple D2xB1LD2-H units will auto-synchronize when powered from the same power source removing the need for any additional sync modules on the circuit. The D2xB1LD2-H contains a supervisory diode and duplicated pluggable terminals that not only simplify installation but also enable a 4 wire connection. UL1971 effective candela rating of 38.38cd.


Source: Array of 4 x High Power Cree® LED's
Modes: 1Hz flash (60 fpm)
1.3Hz flash (80 fpm)
2Hz flash (120 fpm
Eff. Intensity cd: 38.38 cd UL1971 Public mode fire
Eff. Intensity cd: 180 cd UL1638 General signaling
Peak Intensity cd: 300,000 cd
LED life: >60,000 hours
Synchronization: Flash rates synchronize for a minimum of 2 hours per UL1971
Voltage: 24V dc (16-33V dc)
In-rush: 1.88A for 2ms
Ingress protection: IP rating per EN60529:IP66
Type rating per UL50E/NEMA250:4/4X/3R/13
Enclosure material: Marine grade LM6 aluminum alloy
Enclosure colour: Red (RAL3000)
Lens material: Borosilicate glass
Cable entries: 2 x M20x1.5, 2 x 1/2"NPT, 1 x 3/4"NPT
Stopping plugs: Nickel Plated Brass plugs included
Ground/Earth stud: M5
Terminals: 0.5 - 2.5mm² (20-14 AWG)
Line monitoring: Blocking diode included
EOL can be factory fitted
Operating temp: -40 to +50°C [-40° to +122°F]
Storage temp: -40 to +70°C [-40° to +158°F]
Relative humidity: 95%
Weight: 1.5kg/3.31Ibs

Current Consumption


24V dc
16-33V dc
1Hz (60fpm)
1.3Hz (80 fpm)
2Hz (120fpm)

Part Codes

Part Code: Ident.: Description:
Product type: D2xB1LD2 LED Beacon
Voltage: DC024 24V dc (16-33Vdc)
Cable entries: [e] M 2 x 1/2” 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, IECEx & ATEX - UL1971
Enclosure: [x] R Red RAL3000
Lens colour: [y] C Clear
e.g: D2xB1LD2DC024MN0H1R/C D2xB1LD2-H LED Beacon, 24Vdc
nickel plated brass stopping plugs,
UL, cUL, IECEx & ATEX approved - UL1971
Red enclosure with Clear lens
Also available as the D2xC2LD2-H combined alarm horn sounder and LED beacon


  • NEC / CEC: Class I Div 2 ABCD T4 Ta -40°C to +50°C
    Class I Div 2 ABCD T4A Ta -40°C to +40°C
    Class II Div 2 EFG T6 Ta -40°C to +50°C
    Class III Div 1&2 Ta -40°C to +50°C
  • NEC: Class I Zone 2 AEx nA IIC T4 Gc (Ta -40°C to +50°C)
    Zone 22 AEx tc IIIC 75°C Dc (Ta -40°C to +50°C)
  • CEC: Class I Zone 2 Ex nA IIC T4 Gc X (Ta -40°C to +50°C)
    Zone 22 Ex tc IIIC 75°C Dc (Ta -40°C to +50°C)
  • IECEx & ATEX: II 3G Ex nA IIC T4 Gc (Ta -40°C to +50°C)
    II 3D Ex tc IIIC 75°C Dc (Ta -40°C to +50°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 1.3Hz † Flashing 2Hz † Double Strike
Flashing 2Hz † Triple Strike Triple Strike
Double Strike Steady High Power Triple Strike
Triple Strike Flashing 2Hz † Double Strike
† Setting permitted for use as public mode fire alarm device