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BExH120-R/BExDH120-R 'Belltronic' Ex Bell 1-22-080

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The flameproof BExH120-R ‘Belltronic’ Signalling Bell is suitable for Zone 1 & 2 applications. The BExH120D authentically reproduces the traditional sound of a electro-mechanical bell whilst providing a significantly higher level of performance and reliability. The
BExDH120-R variant is also suitable for Zone 21 & 22.

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'Belltronic' Ex Bell


The digitally stored bell recording is output via a class D amplifier achieving sound levels exceeding the performance of a mechanical bell whilst offering a continuously rated signal. The radial horn design not only physically emulates the traditional bell it also replicates the distribution of the audible signal.


Datasheet Datasheet.pdf
Ex d Gas installation IS2491-P-C__BExH120D_Gas_.pdf
Ex d & Ex tD Gas & Dust installation IS2490-P-A__BExDH120D_Gas-Dust_.pdf
IECEx certificate IECEx_KEM_10.0003X_Issue_2_BExS.pdf
IECEx certificate IECEx_KEM_10.0003_Issue_1.pdf
ATEX certificate DEKRA_99ATEX6312_Issue_4_BExS.pdf
ATEX certificate KEMA_99ATEX6312_Issue_3.pdf
INMETRO certificate 10-IEx-0009_Rev_1_BExS.pdf
Russian Ex certificate EAC_EU_C-GB.AA71.B.00273_20.pdf
RTN permit RTN_permit_PPC_00-29227.pdf
Russian Maritime register 19.00195.278.pdf
Declaration of Conformity DC-001_Issue_H_BExS__BExL.pdf
2D drawing (PDF) SK0114_Issue_B.pdf
2D drawing (DWG) SK0114_Issue_B.dwg
Hi-res product image 1 (TIFF) 1-22-080_BExH120D-R.tif
Lo-res product image 1 (JPG) 1-22-080_BExH120D-R.jpg
Hi-res product image 2 (TIFF) 1-22-080_BExH120D-R-R.tif
Lo-res product image 2 (JPG) 1-22-080_BExH120D-R-R.jpg


  • Digitally stored mechanical bell sound.
  • Continuously rated.
  • Maintenance free.
  • Very large termination area.
  • Ratchet adjustable stainless steel ‘U’ bracket.


Nominal output: 106dB(A) @ 1m +/- 3dB [97dB(A) @ 10ft/3m]
Volume control: Yes
Voltages DC: 24vdc
Voltages AC: 115vac; 230vac
Ingress protection: IP66/67
Enclosure matl: Marine grade copper free
LM6 Aluminium
Enclosure finish: Chromate & powder coated – anti-corrosion
Colour: RAL3000 Red or RAL7038 Grey (others available on request)
BExH120-R flare: High impact UL94 V0 & 5VA FR ABS
BExDH120-R flare: Anti-Static High impact ABS (Black)
Cable entries: Dual M20 ISO (one stopping plug inc)
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
Weight : DC: 3.20kg/7.04Ibs AC: 3.40kg/7.48Ibs

Current Consumption

Voltage: Current:
24V dc 400mA
115V ac 50/60Hz 130mA
230V ac 50/60Hz 65mA

Part Codes

Part Code: Classification:
Grey Housing & Red Gong
II 2G Ex d IIB T4 Ta. -50 to +70°C
II 2G Ex d IIC T4 Ta. -50 to +55°C
Red Housing & Red Gong
II 2G Ex d IIB T4 Ta. -50 to +70°C
II 2G Ex d IIC T4 Ta. -50 to +55°C
Grey Housing & Black Gong
II 2G Ex d IIB T4 Ta. -50° to +70°C
II 2G Ex d IIC T4 Ta. -50° to +55°C
II 2D Ex tD A21 IP67 T115
based on a max. Ta. of 70°C
Red Housing & Black Gong
II 2G Ex d IIB T4 Ta. -50° to +70°C
II 2G Ex d IIC T4 Ta. -50° to +55°C
II 2D Ex tD A21 IP67 T115
based on a max. Ta. of 70°C
** = Voltage reference:
Options: 24DC, 115AC, 230AC


  • ATEX certificate: KEMA 99ATEX6312,

    EN 60079-0 : 2006, EN 60079-1 : 2007,

    EN 61241-0 : 2006, EN 61241-1 : 2004
  • IECEx certificate: IECEx KEM 10.0003,

    IEC 60079-0 : 2004 (Ed4), IEC 60079-1 : 2007 (Ed6),

    IEC 61241-0 : 2004 (Ed1), IEC 61241-1 : 2004 (Ed1)
  • Safety-integrity suitability: SIL1
  • Inmetro certificate: 10-IEx-0009
  • GOST-R certificate: POCC GB.JB05.B03365

Tone Table

Stage 1 WAV file Frequency Description. Stg 2 Stg 3
T 1 /system/1/assets/files/000/000/411/411/491442314/original/TF046.WAV Industrial Hooter T 3 T 5
T 2 /system/1/assets/files/000/000/414/414/146644246/original/TF047.WAV High Frequency Mechanical Siren T 1 T 5
T 3 /system/1/assets/files/000/000/416/416/0c52c2259/original/TF048.WAV Medium Frequency Mechanical Siren T 1 T 5
T 4 /system/1/assets/files/000/000/413/413/c47bf00c7/original/TF049.WAV Electro Mechanical Buzzer T 2 T 5
T 5 /system/1/assets/files/000/000/423/423/854c33e83/original/TF050.WAV Mechanical Bell T 1 T 2
Country specific or custom tone configurations and alarm frequencies are available upon request.

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