Fireclass DB3B Flameproof Horn Sounder - High Power

Fireclass DB3BDGD048N2BNRFC DB3B Flameproof Horn Sounder High Power Explosion Proof 122dB @ 1m

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 -55°C to +70°C the Ex enclosure is manufactured from GRP with a rugged thermoplastic flare providing a corrosion free and aesthetically pleasing product.

Capable of producing 122dB @ 1m and with a range of pre-recorded tones, the DB3B includes an integral volume control which is ideal when a lower output is required.

The unit is provided with versatile control options allowing compatibility with a wide range of control methods and PLCs.

The standard DC unit provides 3 tone stages, each stage has 28 tones available which can be independently selected. The unit can be controlled by reversing the polarity of the power supply (2 stage) or providing a common negative and switching between multiple positive supplies. The DB3B proves its versatility by additionally being able to work with a common positive supply and switching the negatives. The tone stages of the DB3B can also be controlled via voltage free contacts provided by a control panel.

Key Features

• Ex d / Ex de IIC/IIIC T4/T5/T6
• ATEX certified
• IECEx certified
• UL certified for USA and Canada Class I, Div 2, Groups A-D Class I, Zone 1, Ex d IIC/AEx d IIC Gb Class II, Div 2, Groups F & G Zone 21, AEx tb IIIC Class III, Div. 1
• TR CU certified
• CQST certified
• CCOE certified
• Chinese Compulsory Certification for Fire systems (CCCF) certified
• INMETRO certified
• SIL 1 certified
• CSFM certified
• Up to 122dB output @ 1m
• Integral volume control
• 28 tones, user selectable
• 3 stage unit remotely switchable
• Tones can be programmed to customer’s specification
• DC supply voltage between 12V and 48V
• Ex enclosure - glass reinforced polyester
• Flare - high impact thermoplastic polyester