Eaton’s Crouse-Hinds series MEDC DB3B is a high-power explosion proof sounder which is provided with versatile control options allowing compatibility with a wide range of control methods and PLCs.
Certified for use from -55°C to +85°C, the DB3B can withstand the harshest conditions. With an Ex enclosure manufactured from GRP and a rugged thermoplastic flare, it is lightweight and corrosion free without compromising on durability.
Capable of producing 122dB @ 1m, the DB3B features an integral volume control, 28 user selectable tones and custom tones programmed to customer specification.
The standard DC unit provides 3 tone stages, each stage has 28 tones available which can be independently selected.
- Certified temperature: –67°F to 185°F, –55°C to +85°C
- IP66 & IP67/NEMA 4X & 6
- Optional Ex e terminal chamber
- 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
- End of line resistor option
- Sounder & beacon combination units available, for further details contact us using the form below
- Ex enclosure – glass reinforced polyester
- Flare – high impact thermoplastic polyester
- Stainless Steel mounting bracket and cover screws
- Mounting bracket has ratchet facility as standard
- Optional swivel bracket available
Standard materials
- Ex enclosure: flame retardant, UV stable, glass reinforced polyester (GRP)
- Flare – flame retardant, high impact, UV stable, thermoplastic polyester (UV stability tested to ISO 4892 part 3)
- Bracket, fixings and captive cover screws: 316 stainless steel
Certifications and compliances
ATEX Ex d Gas
- Cert. no. Baseefa13ATEX0229X. Certified to: EN60079-0,1
Ex II 2G, Ex db IIC T4/T5/T6 Gb
ATEX Ex d Gas & Dust
- Cert. no. Baseefa13ATEX0231X. Certified to: EN60079-0,1,31
Ex II 2GD, Ex db IIC T4/T5/T6 Gb,
- Ex tb IIIC T135°C/T100°C/T85°C Db,
- IP66 (IP65 short flare)
ATEX Ex de Ga
- Cert. no. Baseefa13ATEX0232X. Certified to: EN60079-0,1,7
- Ex II 2G, Ex db eb IIC T4/T5/T6 Gb
ATEX Ex de Gas & Dust
- Cert. no. Baseefa13ATEX0233X. Certified to: EN60079-0,1,7,31
- Ex II 2GD, Ex db eb IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db,
- IP66 (IP65 short flare)
IECEx Ex d Gas
- Cert. no. IECEx BAS 13.0112X. Certified to: IEC60079-0,1
- Ex db IIC T4/T5/T6 Gb
IECEx Ex d Gas & Dust
- Cert. no. IECEx BAS 13.0113X. Certified to: IEC60079-0,1,31
- Ex db IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66 (IP65 short flare)
IECEx Ex de Gas
- Cert. no. IECEx BAS 13.0114X. Certified to: IEC60079-0,1,7
- Ex db eb IIC T4/T5/T6 Gb
IECEx Ex de Gas & Dust
- Cert. no. IECEx BAS 13.0115X. Certified to: EN60079-0,1,7,31
- Ex db eb IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66 (IP65 short flare)
UL Haz Locs
- UL certified for USA and Canada, fire alarm or general use, listing no. E203310
- 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
UL Ord Locs
- UL certified for USA and Canada, fire alarm or general use, listing no. S8116
TR CU Ex d Gas
TR CU Ex d Gas & Dust
- 1Ex d IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db
TR CU Ex de Gas
TR CU Ex de Gas & Dust
- 1Ex de IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db
Russian Fire Approval
- All TR CU certified units are Russian Fire Approved
CQST Ex d Gas
CQST Ex d Gas & Dust
- Ex d IIC T4/T5/T6 Gb, Ex tD A21 IP6X T135°C/T100°C/T85°C
CCCF
- Chinese Compulsory Certification for Fire systems (CCCF) Ex d only
INMETRO Ex d Gas
INMETRO Ex d Gas and Dust
- Ex db IIC T4/T5/T6 Gb, Ex tb IIC T135°C/T100°C/T85°C Db, IP66 (IP65 short flare)
INMETRO Ex de Gas
INMETRO Ex de Gas and Dust
- Ex db eb IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100C°/T85C° IP66 (IP65 short flare)
SIL
- SIL 1 certified to IEC61508. Cert number 20151119-4786827453
- EN54-3 Fire Alarm Device – Sounder (11-57.6V DC Absolute)
