MEDC DB4B Up to 25W Loudspeaker Range

Certifications and compliances

ATEX Ex d Gas:

• Cert. no. Baseefa13ATEX0229X. 
• Certified to: EN60079-0,1
• Ex II 2G, Ex db IIC T3/T4/T5/T6 Gb

ATEX Ex d Gas & Dust:

• Cert. no. Baseefa13ATEX0231X. 
• Certified to: EN60079-0,1,31
• Ex II 2GD, Ex db IIC T3/T4/T5/T6 Gb, Ex tb IIIC T200°C/T135°C/T100°C/T85°C Db,
• IP66 (IP65 short flare)

ATEX Ex de Gas:

• Cert. no. Baseefa13ATEX0232X. 
• Certified to: EN60079-0,1,7
• Ex II 2G, Ex db eb IIC T3/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 T3/T4/T5/T6 Gb, Ex tb IIIC T200°C/T135°C/T100°C/T85°C Db,
• IP66 (IP65 short flare)

IECEx Ex d G:

• Cert. no. IECEx BAS 13.0112X
• Certified to: IEC60079-0,1
• Ex db IIC T3/T4/T5/T6 Gb

IECEx Ex d Gas & Dust:

• Cert. no. IECEx BAS 13.0113X.   
• Certified to: IEC60079-0,1,31
• Ex db IIC T3/T4/T5/T6 Gb, Ex tb IIIC T200°C/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 T3/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 T3/T4/T5/T6 Gb, Ex tb IIIC T200°C/T135°C/T100°C/T85°C Db,
• IP66 (IP65 short flare)

UL Haz Locs:

• UL certified for USA and Canada, listing no. E203310
• Class I, Div 2. T4/T5/T6, Groups A-D. Class I, Zone 1, Ex d IIC / AEx d IIC Gb
• Class II, Div 1. T135°C/T100°C/T85°C, Groups E,F&G (Canada only*)
• Class II, Div 2. T135°C/T100°C/T85°C, Groups F&G. Zone 21 AEx tb IIIC
• Class III Div 1 *Contact MEDC for ordering details

UL Ord Locs:

• UL certified for USA and Canada, listing no. S8847

TR CU Ex d Gas:

• 1Ex d IIC T4/T5/T6 Gb

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 1Ex de IIC T4/T5/T6 Gb

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:

• Ex d IIC T3/T4/T5/T6 Gb

CQST Ex d Gas & Dust:

• Ex d IIC T3/T4/T5/T6 Gb, ExtD A21 IP6X T200°C/T135°C/T100°C/T85°C/

INMETRO Ex d Gas:

• Ex db IIC T3/T4/T5/T6 Gb

INMETRO Ex d Gas & Dust:

• Ex db eb IIC T3/T4/T5/T6 Gb, Ex tb T200°C/T135°C/T100°C/T85°C Db, IP66 (IP65 short flare)

INMETRO Ex de Gas:

• Ex db eb IIC T3/T4/T5/T6 Gb

INMETRO Ex de Gas & Dust:

• Ex db eb IIC T3/T4/T5/T6 Gb, Ex tb IIIC T200°C/T135°C/T100°C/T85°C Db, 

IP66 (IP65 short flare)

SIL:                                                 

• SIL 2 certification to IEC61508. Cert number 20151119-4786827453

Type approval:                               

• DNV GL (IEC60945) 

• Certified temperature  -67°F to +158°F, -55°C to +85°C*  
• IP66 & IP67/ NEMA 4X & 6
• Optional Ex e terminal chamber
• 124dB at 25W, 1m*
• 8W, 15W & 25W versions
• Power tappings, via integral transformer
• Frequency response 350Hz - 8kHz
• Ex enclosure - glass reinforced polyester
• Flare - high impact thermoplastic polyester
• Internal earth stud fitted as standard
• Stainless steel mounting bracket and cover screws
• Mounting bracket has ratchet facility as standard
• Optional swivel bracket available
• Optional resettable fuse

* Depending on version

• 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