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Zonex Enclosures

Zonex EnclosuresAN EXPANDED OFFERING OF HINGE- AND SCREW-COVER ENCLOSURESFOR HAZARDOUS LOCATIONS. ATEX DIRECTIVE 94/9/EC ANDIECEX CERTIFIED FOR ZONE 1 ZONE 2 RATED AREAS.THE ZONEX ENCLOSURE FAMILYDELIVERS RELIABLE PROTECTION IN AVERSATILE PLATFORM.The newly expanded line of ZonexATEX-Certified* Enclosures includesthe certifications, styles and sizes yourapplication requires. Zonex hinge-cover andscrew-cover enclosures are designed foruse in applications where “increased safety”protection (Ex e), is acceptable to safelyhouse electrical components in Zone 1- andZone 2-rated areas. These enclosures arenot intended for use in explosion-proof orflame-proof (Ex d) applications.Easy-to-remove coverType 316 stainless steel withcapivated Type 316 stainlesssteel cover screws for corrosionresistanceHinge-cover versions are ATEX and IECEXcertified, and available in 16 standard sizes.The screw-cover versions provide also ATEXand IECEX certification and are availablein five sizes. Additional certifications suchas AEx and KOSHA will be available soon(AEx certified hinge-cover version is alreadyavailable as non-standard model). Hinge-cover versions in standard sizesranging from 300 x 300 x 150 mm to 900 x 600 x 210 mmZonexScrew-Cover Model Screw-cover versions in standard sizesranging from 102 x 102 x 76 mm to254 x 254 x 127 mmEnhanced customization options allow youto specify the exact enclosure solution youneed. Options include: material changes,dimension changes, paint options, holesand cutouts, population of ATEX-certifiedterminal blocks and more.* For more information aboutATEX-certification nical/atex/index en.htm2 nVent.com/HOFFMANBonding provisions,screw-cover style6-mm internal/externalbrass bonding provisionWall-mounting brackets,screw-cover styleWelded-on, full-width top andbottom wall-mount bracketsfor easy installation

Zonex Hinge-Cover ModelWall-mounting bracketsHeavy-duty 2,5-mm welded-onbrackets, horizontal or vertical, foreasy site installation210-degree opening doorthat is easily removed by pullingclip style hinge pinsBonding provisions10-mm brass internal/externalbonding provisionsContinuous gasket sealon the door and gland plate forprotection against water anddust ingressInternal studs for panel or DIN railmountingType 316 stainless steel 3mmdouble bit ¼-turn for easy accessand closureFull-size gland plate 3-mm thick(12 gauge) flat bottom gland platewith bonding stud and continuousgasket sealnVent.com/HOFFMAN 3

SELECTION AND SPECIFICATION OF AZonex EnclosureTO MEET YOUR APPLICATIONREQUIREMENTSCERTIFIED FOR YOUR APPLICATION REQUIREMENTSZonex enclosures deliver a robust solution for terminationand junction enclosure applications in potentially hazardouslocations, including: Petroleum and chemical processing Water treatment processing Pharmaceutical processing Grain processingTHERE ARE 2 WAYS TO DETERMINE THE CORRECT SIZEZONEX ENCLOSURE FOR POPULATED TERMINAL BLOCKS(SEE PAGE 8): Method 1: Maximum Terminal Block Count Method 2: Maximum Dissipated Power (watts)*N OTE - All selection methods must adhere to maximum dissipatedpower for selected enclosure size.MODIFICATION AND CUSTOMIZATIONnVent HOFFMAN excels at modifying and customizing Zonexproducts to your specifications while maintaining ATEX andIECEX certifications. Contact your local HOFFMAN sales officeor distributor for complete information. HOFFMAN offers: Material changes: Type 304 stainless steel, aluminum,mild steel Gasket changes: High-temperature silicone gasket Holes and cutouts Paint DIN rails Terminal block installation and marking Ground bars Tagging Accessory installations Zero to four gland plates**Hinge-cover enclosures onlyCERTIFICATION MARKINGSATEXIECEXAEx / ExII 2 G DEx e IIC T6 Gb(Ta -20 C to 40 C)Ex tb IIIC T85 C Db IP 66Ex e IIC T6 Gb(Ta -20 C to 40 C)Ex tb IIIC T85 C Db IP 66UL File No.E67546:Class I, Zone III 2 G DEx e IIC T5 GbAEx e IIC TambEx e IIC T5 Gb(Ta -20 C to 55 C)(Ta -20 C to 55 C)-20 C to 60 CEx tb IIIC T100 C Db IP 66Ex tb IIIC T100 C Db IP 66Ex e IIC Tamb-20 C to 60 C

ATEX DIRECTIVE AND CLASSIFICATION SYSTEMSince 2003, manufacturers across the European Union (EU)have been obliged to comply with strict new EU directivesgoverning safety in explosive atmospheres. Called ATEX (fromthe French ATmosphères EXplosives), ATEX Directive 94/9/EChas an impact not only on European manufacturers, but alsoon non-European makers of industrial equipment wishing tosell in Europe.Two of the most common classification systems for hazardouslocations are the Zone Classification system used by theEuropean Union (EU) and the International ElectrotechnicalCommission (IEC), and the NEC Division Classification system.Articles 505 and 506 of the NEC refer to zone classifications.Refer to the Technical Information section of the Specifier’sGuide for specific definitions and additional information.HOFFMAN’s ATEX enclosures are not intended for use inexplosion-proof or flame-proof (Ex d) applications.ATEX MARKING DIRECTIVE (94/9/EC)II2European allyIEC / EUZone 0Zone 1Zone 2NEC 505Zone 0Zone 1Zone 2NEC 500Division 1CEC Section18Zone 0CEC Annex JDivision 1Division 2Zone 1Zone 2Division 2IEC classification per IEC 60079-10EU classification per EN 60079-10US classification per ANSI/NF PA 70 National Electrical Code (NEC)Article 500 or Article 505CA classification per CSA C22.1 Canadian Electrical Code (CEC) Section18 or Annex JZONESGEquipmentCategoryAREA CLASSIFICATIONDGasSAFE AREAZONE 2 /22DustZONE 1 / 21ExeIIT6European ExplosiveAtmosphere ProtectionConceptProtectionMethodGas GroupTemperatureClassZONE 0 / 20ZONE 0 / 20ZONE 0 / 20Permanently or frequently hazardous over longperiodsZONE 1 / 21Occasionally hazardousZONE 2 / 22Rarely or temporarily hazardousZones 20, 21 and 22 are dustINCREASED SAFETY “EX E”ounSngexy IECEX populated enclosures require IECEX certifiedcomponents specifically listed in Certification (see IECEX SIR09.0100 for more detail)/O ATEX and intrinsically safe certified terminal blocks can beinstalled in populated enclosuresAirNOTES:All three elements ofthe FIRE TRIANGLEmust be present forignition to occur.itio No components or parts temperatures exceed the temperaturelimit of the corresponding temperature classIgn There are no arcs or sparksrceIt is assumed that the hazardous atmosphere penetrates to theenclosure interior and explosion is prevented by ensuring thateither in normal operation or under fault conditions:Flammable/Combustible Substance Contact your local HOFFMAN sales office or distributor forcomplete informationnVent.com/HOFFMAN 5

Zonex Screw-CoverATEX-CERTIFIED ENCLOSURES2,012,7DYM5HY2,8H 25,4H-12,72,8WH-12,7(BODY OPENING)3,2W-22,6W-12,7(BODY TIONS: Type 316 stainless steel, 320 grain brushed finish on exteriorsurfaces Welded-on, full-width top and bottom wall-mount bracketsfor easy installation 6-mm internal/external brass bonding provisionSCREW-COVER ATEX (STANDARD SIZES) Type 316 stainless steel captivated cover screws forcorrosion resistanceCatalog Number One-piece continuous gasket for protection against waterand dust ingressEXE10210276SS6EEXE152152102SS6E152152102 Internal weld nuts provided for panel or DIN rail installationEXE178178102SS6E178178102 Mounting plate 542541276 nVent.com/HOFFMANActual Dimensions - mmA - HeightB - WidthC- Depth10210276

Zonex Hinge-CoverATEX-CERTIFIED ENCLOSURESQW20,8Y-Y2,5DW-41,6(BODY DOOR OPENING)19,411,0M8 x 1,25B - E750750300SS61HEEXE900600210SS61HEActual Dimensions - mmA - 00BAH 31,8H22,528,9Catalog NumberWW-63,531,8YHH-41,6(BODY DOOR OPENING) Type 316 stainless steel, 320 grain brushed finish on exteriorsurfaces Type 316 stainless steel 3mm double bit ¼-turn insert(s) foreasy access and closure 210 degree opening door that is easily removed by pulling clipstyle hinge pins Heavy-duty 2,5-mm welded-on brackets, horizontal or vertical,for easy site installation 3-mm thick (12 gauge) full-size bottom gland plate withbonding stud Fabricated and formed entries for gland plate screws providequick and easy installation Continuous gasket seal on the door and gland plate forprotection against water and dust ingress 10-mm brass internal/external bonding provision Mounting plate includedPSPECIFICATIONS:C- 0nVent.com/HOFFMAN 7

Selection of Zonex EnclosuresBY TERMINAL BLOCK COUNT & POWERDETERMINE THE CORRECT SIZE ZONEX ENCLOSURE FOR POPULATED TERMINAL BLOCK:N by MAXIMUM TERMINAL BLOCK COUNT ( KNOWNWIRE SIZE/MATCH TERMINAL BLOCK SIZE )1. Refer to Power and Terminal Block Matrix appropriate forselected model (screw-/hinge-cover)2. Find a terminal block quantity less than or equal to requiredin the shaded areas associated with your chosen terminalblock manufacturer3. Select enclosure size4. Use calculating power and amperage formula to verifyconformance to standard5. If maximum power is exceeded by terminal block countand amperage, select an enclosure with higher power andre-calculateSPECIFYING ENCLOSURESWITH TERMINAL BLOCK POPULATION ATEX- and IECEX-certified terminal blocks from Phoenixand Weidmuller are referenced in tables Any ATEX or IEXEX hazardous location certified terminalblock may be selected and installed in ATEX-certifiedapplications Only the table referenced terminal blocks may be specifiedfor IECEX populations and certification Combinations of different terminal block sizes andquantities may be selected for population All terminal block installation applications need to usethe CALCULATING POWER and AMPERAGE formula andassociated tables on page 10 to verify compliance withfinal intended amperage of application and power rating ofselected enclosureP by MAXIMUM POWER (watts)1. Refer to Power and Terminal Block Matrix appropriate forselected model (screw-/hinge-cover)2. Find maximum power required in shaded areas associatedwith your chosen terminal block manufacturer3. If terminal block quantity for maximum power is insufficient,continue down and across rows until requirement is met; thisprovides the smallest enclosure to meet maximum powerand amperage needs4. Use calculating power and amperage formula to verifyconformance to standard5. If maximum power is exceeded by terminal block countand amperage, select an enclosure with higher power andre-calculateR C ALCULATING POWER AND AMPERAGEusing combined terminal resistance factor (see page 10)Calculation of power/amperage/number of terminal blocksin accordance with EN 600079-7:2007, ANEX E, E.2P N x R x I2 or I [P/(N x R)] or N P/(R x I2)Where: P is the total dissipated power (watts)N is the total number of terminalsI is the current (amps)R i s the sum of terminal resistance (Rt) andwire resistance (Rw)TERMINAL WIRE SIZE, VOLTAGE AND RESISTANCE (RT) DATAWeidmuller (SAK/WDU)ManufacturerPhoenixModelTerminal WireSize Range(mm2)TerminalVoltage (Volts)TerminalResistance Rt(Ohm)UK1.5 UK3 UK5 UK10 2.546100.14 0.2 to 0.2 to0.5 to 0.5 to 0.5 to 0.5 to 1.5 toto10.0 10 -04-04-04-04-04-04-04-04POWER & TERMINAL BLOCK QUANTITY MATRIXSCREW-COVER ZONEX (STANDARD SIZES)N MAXIMUM TERMINAL BLOCKSP MAXIMUM POWERQuantity Offerings per EnclosureDissipation (Watts)Weidmuller 64614172329585111419244849111519381111128 nVent.com/HOFFMANActual Dimensions (mm)T6 atTampT5 at Tamp 40 C 55 CHeight Width DepthCatalog Number3.8 W3.8 W10210276EXE10210276SS6E6.9 W6.9 W152152102EXE152152102SS6E6.9 W6.9 W178178102EXE178178102SS6E9.6 W9.6 W216146127EXE216146127SS6E9.6 W9.6 W254254127EXE254254127SS6E