ATEX Sounders Zone 1 & Zone 2 Weatherproof Ex de – Eaton MEDC DB3B Hazardous Area Sounder

ATEX Sounders Zone 1 & Zone 2 Weatherproof Ex de – Eaton MEDC DB3B Hazardous Area Sounder

ATEX Sounders Zone 1 & Zone 2 Weatherproof Ex de – Eaton MEDC DB3B Hazardous Area Sounder

ATEX Sounders Zone 1 & Zone 2

Eaton MEDC DB3B are high power explosion proof ATEX sounders introduced as a replacement for the current DB3 with improved functionality and performance.

The hazardous area sounder is certified for use in a wide range of temperatures from -55ºC to +70ºC in ATEX & IECEx Zone 1 and Zone 2 hazardous areas.

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 Eaton MEDC DB3B includes an integral volume control which is ideal when a lower output is required.

The ATEX sounder 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 hazardous area sounder 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 sounder 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.

Eaton MEDC DB3B

Eaton MEDC DB3B

ATEX Sounders Zone 1 & Zone 2

ATEX Sounders

ATEX

Features

  • Ex d / Ex de IIC/IIIC T4/T5/T6.
  • ATEX certified.
  • IECEx certified.
  • INMETRO certified
  • TR CU certified
  • CCCF certified
  • CCOE certified
  • SIL1 certified
  • cULus certified
  • Certified temperature -55ºC to +70ºC.*
  • IP66 & IP67.
  • 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.
  • ATEX Sounder & beacon combination units available,
  • for further details contact MEDC.
  • 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
Eaton MEDC DB3B - Dimensions

Eaton MEDC DB3B – Dimensions

Eaton MEDC DB3B

Tone activation and selection

VoltageUnitNo of StagesTone ActivationTone Selection
DCStandard1Apply Power1 x DIP switch
2Reverse polarity2 x DIP switches
Common -ve with 2
+ve supplies
2 x DIP switches
*Common +ve with 2
-ve supplies
2 x DIP switches
3Common -ve with 3
+ve supplies
3 x DIP switches
Alternative tone activation (Option M)2*Common -ve with 2
+ve supplies
2 x DIP switches
3Common +ve with 3
-ve supplies
3 x DIP switches
Alternative tone
activation (remote)
(Option R)
1-5Volt free activation
(remote switching)
1 x DIP switch
for stage 1. Tone
preselected for
subsequent stages
ACStandrad1Apply power1 x DIP switch
Alternative  tone
activation (remote)
(Option R)
1-2Volt free activation
(remote switching)
1 x DIP switch
for stage 1. Tone
preselected for the
2nd stage

*Reverse polarity line monitoring can be used with common positive or negative switching to give up to 2 operational stages and a 3rd monitoring connection.
An EOL resistor can be fitted as shown in the technical manual. All connection details are shown in the technical manual.

Current consumption:

Based on a continuous 970Hz tone

VoltageCurrent for IIC unitCurrent for IIIC unit
12Vdc700mA716mA
24Vdc329mA339mA
48Vdc171mA173mA
110Vac115mA122mA
120Vac106mA113mA
220Vac59mA63mA
230Vac52mA55mA
240Vac55mA58mA
254Vac59mA63mA

MEDC DB3B Hazardous Area sounders

Technical Specification

Hazardous Area Certification
ATEX Ex d GasCert. no. Baseefa13ATEX0229X. Certified to: EN60079-0,1
Ex II 2G, Ex d IIC T4/T5/T6 Gb
ATEX Ex d Gas & DustCert. no. Baseefa13ATEX0231X. Certified to: 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 Ex de GasCert. no. Baseefa13ATEX0232X. Certified to: EN60079-0,1,7
Ex II 2G, Ex de IIC T4/T5/T6 Gb
ATEX Ex de Gas & DustCert. no. Baseefa13ATEX0233X. Certified to: EN60079-0,1,7,31
Ex II 2GD, Ex de IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66
IECEx Ex d GasCert. no. IECEx BAS 13.0112X. Certified to: IEC60079-0,1
Ex d IIC T4/T5/T6 Gb
IECEx Ex d Gas & DustCert. no. IECEx BAS 13.0113X. Certified to: IEC60079-0,1,31
Ex d IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66
IECEx Ex de GasCert. no. IECEx BAS 13.0114X. Certified to: IEC60079-0,1,7
Ex de IIC T4/T5/T6 Gb
IECEx Ex de Gas & DustCert. no. IECEx BAS 13.0115X. Certified to: EN60079-0,1,7,31
Ex de IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66
UL Haz LocsUL 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 LocsUL certified for USA and Canada, fire alarm or general use, listing no. S8116
TR CU Ex d Gas1Ex d IIC T4/T5/T6 Gb
TR CU Ex d Gas & Dust1Ex d IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db
TR CU Ex de Gas1Ex de IIC T4/T5/T6 Gb
TR CU Ex de Gas & Dust1Ex de IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db
Russian Fire ApprovalAll TR CU certified units are Russian Fire Approved
CQST Ex d Gasare Russian Fire Approved
CQST Ex d Gas Ex d IIC T4/T5/T6 Gb
CQST Ex d Gas & DustEx d IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db
CCCFChinese Compulsory Certification for Fire systems (CCCF) Ex d only
INMETRO Ex d GasEx d IIC T4/T5/T6 Gb
INMETRO Ex d Gas and DustEx d IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db, IP66
INMETRO Ex de GasEx de IIC T4/T5/T6 Gb
INMETRO Ex de Gas and DustEx de IIC T4/T5/T6 Gb, Ex tb IIIC T135°C/T100°C/T85°C Db IP66
SILSIL 1 certified to IEC61508. Cert number 20151119-4786827453
Specifications
MaterialEx enclosure – flame retardant, UV stable, glass reinforced polyester
Flare – flame retardant, high impact, UV stable, thermoplastic polyester
(UV stability tested to ISO 4892 part 3)
Hardware – bracket, fixings and captive cover screws in 316 stainless steel
Fire retardancyBody – glass reinforced polyester. V0 flammability rating
Outer flare – thermoplastic polyester. V0 flammability rating
FinishBody – natural black. Flare – natural black, natural red or painted as specified (black
short flare painted black)
VoltageDC: 12 – 48V AC: Up to 254V. If using an EOL resistor with a value between 700Ω
and 2KΩ the maximum voltage must be limited to 28.8Vdc, if using an EOL resistor
with a value between 470Ω and 700Ω the maximum voltage should be limited
to 26Vdc
WeightEx d/UL – 4.6kg, Ex de – 5.4kg. Based on long flare DC unit
Ingress protectionIP66 & IP67, NEMA 4X & 6. (IPx7 & NEMA 6 on terminal chamber only
Earth ContinuityOptional for Ex de version. Not available on Ex d unit
EntriesUp to 2 x M20 or 1/2” NPT. Blanking plug available
TerminalsAC: 7 x 2.5sqmm (4 for loop in/out power, 3 for tone selection) (standard unit only)
DC: 8 x 2.5sqmmm (8 for loop in/ out power and tone selection) (standard unit only
Mounting arrangementStainless steel bracket with ratchet facility, optional swivel bracket available
LabelsOptional duty and tag labels available
Tone information28 tones per stage. Additional custom tones available (contact MEDC)
Suitable for use with 200Hz tones

EATON MEDC db3B – ORDERING REQUIREMENTS

The following code is designed to help in selection of the correct Eaton hazardous area sounders with ATEX approval and certification. Build up the part number by inserting the code for each component into the appropriate box.

Eaton MEDC DB3B - Ordering Requirements

Eaton MEDC DB3B – Ordering Requirements

ATEX Sounders

ATEX Sounders

Eaton MEDC

Eaton MEDC have developed ATEX products designed for harsh and hazardous area conditions and where there is a risk of explosion due to the presence of flammable atmospheres both onshore and offshore – since 1975 MEDC have been designers and manufacturers of alarm, signal, control and communications equipment. T&D distribute the extensive range of Eaton MEDC ATEX Certified manual call points, visual, audible alarms, loudspeakers and telephones for hazardous area workplaces, including Zone 1 & Zone 2 explosive atmospheres.

Thorne & Derrick, are the Explosive Atmosphere Experts, distributing an extensive range of ATEX Certified Equipment including heat tracing cables and systems, electrical heating products, electrical enclosures and plug/sockets outlets.

Complete range of LV-HV Cable Joints, Terminations, Cleats & Glands are available to support installation of power, control and instrumentation cables up to 33kV – includes Cold Shrink for use in hazardous areas to provide electrical insulation and cable protection.

Cable Cleats | Cable Lugs | Cable Transits | Cable Joints