The DB3B is a high-power explosion-proof sounder, introduced as a replacement for the current DB3 with improved functionality and performance.
Certified for use in a wide range of temperatures from -55ºC to + 70ºC, the Ex housing is manufactured in GRP with a robust thermoplastic flare offering a product without corrosion and aesthetics.
Capable of producing 125dB @ 1m and with a range of pre-recorded sounds, the DB3B includes an ideal full volume control for lower output.
The unit has versatile control options for compatibility with a wide range of control methods and controllers.
The standard DC unit has 3 tone levels, each floor has 28 tones that can be independently selected.
The unit can be controlled by reversing the polarity of the power supply (2 stages) or by providing a common negative and switching between several positive power supplies.
The DB3B proves its versatility by being able to work with a common positive power supply and switching the negatives.
The tone stages of the DB3B can also be controlled via voltage-free contacts provided by a control panel.
The flexibility of the range continues with a wide range of supply voltages. The short flare option is an interesting addition to the range offering a high SPL in a compact unit
Exd / Exd IIC / IIIC T4 / T5 / T6.
ATEX certified
IECEx certified.
UL Listed for the United States and Canada
Class I, Div 2, Groups A-D
Class I, Zone 1, Ex d IIC / A d d IIC Gb
Class II, Div 2, Groups F & G Zone 21, AEx tb IIIC
Class III, Div. 1
Fire alarm and general use
CUTR certified.
Certified CQST.
Brazilian (Inmetro) certified.
Certified temperature from -55ºC to + 70ºC.
* IP66 and IP67 / NEMA 4X and 6.
ATEX Exd Gas:
Cert. no. Baseefa13ATEX0229X.
Certified for: EN60079-0.1. Ex II 2G,
Ex d IIC T4 / T5 / T6 Gb.
ATEX Ex d Gas & Dust:
Cert. no. Baseefa13ATEX0231X.
Certified for: EN60079-0,1,31.
Ex II 2GD, Ex d IIC T4 / T5 / T6 Gb,
Ex tb IIIC T135 ° C / T100 ° C / T85 ° C Db, IP66.
ATEX Exd Gas:
Cert. no. Baseefa13ATEX0232X.
Certified for: EN60079-0,1,7.
Ex II 2G, Ex of IIC T4 / T5 / T6 Gb.