MEDC DB3B Horns
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 exteriro enclosure is manufactured from GRP with a rugged thermoplastic flare providing a corrosion free and aesthetically pleasing product. Capable of producing 125dB @ 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.
The flexibility of the range continues with a wide range of supply voltages. The short flare option is worthy addition to the range offering a high SPL in a compact unit.
|Catalog Number||DB3BULG048N2CPNR, DB3BULG120N2CPNR|
|Color||Natural Black, Red, Special|
|Voltage||12–48 VDC, up to 254 VAC|
|Approvals||UL listed for US and Canada for Class I, Div 2, Groups A–D, Class I, Zone 1, Ex d IIC, Class II, Div 2, Groups F and G, Zone 21, AEx tb IIIC, and Class III, Div 1|
|Certified Temperature||–67°F to +158°F(–55°C to +70°C)|
|Material||Glass Reinforced Polyester (GRP) with high-impact thermoplastic polyester|
|Weight||10 lb (4.6 kg)|
|Mounting||Stainless steel bracket with ratchet facility|
|Entries||Up to 2 x 1/2” NPT|
- Color: Red finish
- NEMA 4x & 6, IP66 & 67
- Integral volume control
- Up to 115 dB output @ 10 ft
- Certified Temperature:-67F to 158F
- 4 wire monitored connection
- 12 - 48 VDC, upt to 254 VAC
- 28 output tones, user selectable