GOST R CERTIFICATION SYSTEM FEDERAL AGENCY OF TECHNICAL REGULATION AND METROLOGY CERTIFICATE OF CONFORMITY

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1 CERTIFICATE OF CONFORMITY No. ROSS US.GB05.V03061 Valid from 8/12/2010 through 8/12/2013 No CERTIFICATION AGENCY ROSS RU GB05 NONPROFIT INDEPENDENT RESEARCH ORGANIZATION (), CERTIFICATION CENTER FOR EXPLOSION- PROOF AND MINE ELECTRICAL EQUIPMENT (CCVE) CCVE, P.O. Box 22, Moscow Tel./fax: +7 (495) , , , , , , , , , ww.ccve.ru PRODUCT VC4, VH4, HV4, TSC4, CN4, TN4, and CSC4 series explosion-proof enclosures OK 005 Code (OKP): with an EBT contact block, EH (PP, PB, S, KS) series pushbuttons and selector switches, and EL series indicator lights with explosion protection labeling, and combustible dust ignition protection labeling in accordance with the addendum Serial production IS IN COMPLIANCE WITH REGULATORY DOCUMENTS GOST R (International Electrotechnical Commission (IEC) :2004) GOST R (IEC :2003) GOST R (IEC :2006) GOST R (IEC :2004) GOST R IEC ; IEC :2004 Russian TN VED Code: MANUFACTURER: Adalet/Scott Fetzer Company, 4801 West 150 th Street, Cleveland, Ohio, 44135, USA CERTIFICATE ISSUED TO Adalet/Scott Fetzer Company 4801 West 150 th Street, Cleveland, Ohio, 44135, USA Telephone: , fax: ON THE BASIS OF Test certificate No I dated 7/30/2010, CCVE Testing Laboratory (TL) (reg. No. ROSS RU GB04); Certificate of analysis results of the certifiable product's state of production No. 15-PP/10 dated 3/31/2010 CCVE Certification Agency (reg. No. ROSS RU GB05) ADDITIONAL INFORMATION Certification scheme 3a Certificate is valid with 7-page addendum Inspection check-up July 2011, July 2012 Initials and surname Initials and surname Certificate is legally valid on all Russian Federation territory Form printed by ZAO OPTsION (License No /003 FNS RF, level C)) Tel: (495) , , Moscow 2009

2 NONPROFIT INDEPENDENT RESEARCH ORGANIZATION, CERTIFICATION CENTER FOR EXPLOSION-PROOF AND MINE ELECTRICAL EQUIPMENT, ROSS RU GB05 CCVE, P.O. Box 22, Moscow , Tel.: ADDENDUM TO CERTIFICATE No. ROSS US.GB05.V03061 Drafted in compliance with par of the Rules of Certification of Electrical Equipment Explosive Atmospheres, PB , registered by the RF Ministry of Justice on 4/23/03, registration number APPLICATION AND AREA OF USE VC4, VH4, HV4, TSC4, CN4, TN4, CSC4 series explosion-proof enclosures with an EBT contact block, EN (PP, PB, S, KS) series pushbuttons and selector switches, and EL series indicator lights are intended use as components (modules) construction of various control systems and other systems. The areas of use are class 1 and 2 explosion-hazard zones according to GOST R (IEC :2002) classification of spaces and exterior installations in accordance with GOST R (IEC :2002) and other regulatory documents governing the use of electrical equipment in explosion-hazard zones and in zones that are hazardous due to ignition of combustible dust in accordance with GOST R IEC BASIC TECHNICAL SPECIFICATIONS Class of electrotechnical item safeguarding people from electrical shock according to GOST Ambient temperature range during operation, C: -VC4 -VH4 -HV4 -TSC4 -CN4 ( T5 temperature class) -CN4 ( T6 temperature class) -TN4 -CSC4 -EBT series contact blocks -EL series indicator lights I Explosion protection labeling: -Explosion-proof enclosures series VC4, VH4, HV4 TSC4 CN4 TN4 CSC4 2 Ex e II T5/T6 X 2 Ex e II T4/T5/T6 X 2 Ex d e mb IIC T5/T6 X 2 Ex e II T4/T5/T6 X 2 Ex d e mb IIC T5/T6 X

3 Addendum to Certificate of Conmity No. Ross US. GB05.V03061 Page 2 -EBT series contact blocks -EN (PP, PB, S, KS) series pushbuttons and selector switches -EL series indicator lights Combustible dust ignition protection labeling: -enclosures of series VC4, VH4, HV4 TSC4 CN4 TN4 CSC4 -EN (PP, PB, S, KS) series pushbuttons and selector switches -EL series indicator lights Ex d e IIC U EX d e IIC U Ex e mb IIC U/ Ex mb IIC U Ex td A21 T200 C X Ex td A21 T200 C X Ex td A21 T200 C X Ex td A21 T100 C X Ex td A21 T200 C X Ex td A21 U Ex td A21 U VC4 series explosive-proof enclosures Ambient temperature during operation, C From -50 to +55 VH4 series explosive-proof enclosures Ambient temperature during operation, C From -50 to +55 HV4 series explosive-proof enclosures Ambient temperature during operation, C From -20 to +55 Maximum operating voltage of alternating or direct current, V 8000 Maximum cross-section of supply line, mm 2 From 10 mm 2

4 Addendum to Certificate of Conmity No. Ross US. GB05.V03061 Page 3 to 300 mm 2 TSC4 series explosive-proof enclosures Ambient temperature during operation, C From -20 to +70 CN4 series explosive-proof enclosures Ambient temperature during operation, C From -20 to +55 TN4 series explosive-proof enclosures Ambient temperature during operation, C From -20 to +70 CSC4 series explosive-proof enclosures Ambient temperature during operation, C From -20 to +55

5 Addendum to Certificate of Conmity No. Ross US. GB05.V03061 Page 4 EBT series contact blocks Maximum voltage, V: -of alternating current 600 -of direct current 300 Maximum current, A 10 EL series indicator lights Power supply, V Capacity, W DESCRIPTION OF ITEM DESIGN AND EXPLOSION-PROOF MEASURES VC4, VH4, HV4, TSC4, CN4, TN4, and CSC4 series explosion-proof enclosures are made of painted carbon steel (the number 4 indicates the housing material painted carbon steel). Housings of VC4X, VH4X, HV4X, TSC4X, CN4X, TN4X, and CSC4X series explosion-proof enclosures can be made of type 304 stainless steel (the designation 4X indicates the housing material type 304 stainless steel). Housings of VC4X6, VH4X6, HV4X6, TSC4X6, CN4X6, TN4X6, and CSC4X6 series explosion-proof enclosures can be made of type 316L stainless steel (the designation 4X6 indicates the housing material type 316L stainless steel). VC4 and VH4 series explosion-proof enclosures have a box-like housing with a cover made out of steel. Certified conduit entries are mounted on the sides of the housings. Certified add-ins can be installed in the housing. HV4 series explosion-proof enclosures are steel box-like housings in which a high-voltage insulator is installed connection of cable conductors. Conduit entries are mounted on the sides of the housing. The cover of HV4 series explosion-proof enclosures is attached to the housing with bolts and hinges and has sealing gaskets. TSC4 series explosion-proof enclosures are steel box-like housings inside which certified Ex-components can be mounted. Conduit entries are mounted on the sides of the housing. The cover of TSC4 series explosion-proof enclosures is attached to the housing with bolts and has sealing gaskets. CN4 series explosion-proof enclosures have a housing and cover on a hinged joint; the cover is attached with screws. The housing and cover are made of steel. Certified Ex-components can be installed in the housing. Certified conduit entries are mounted on the sides of the housing. Certified add-ins can be mounted on the cover: EBT series and EH (PP, PB, S, KS) series pushbuttons and selector switches, and EL series indicator lights. The housing of CN4 series explosion-proof enclosures has a

6 Addendum to Certificate of Conmity No. Ross US. GB05.V03061 Page 5 sealing gasket between the housing and the cover at least an ingress rating. TN4 series explosion-proof enclosures have a housing and mounted cover on hinges that is attached with screws. Certified Ex-components are mounted in the housing. Certified conduit entries are mounted on the sides of the housing. The housing of TN4 series explosion-proof enclosures has a sealing gasket between the housing and the cover at least an ingress rating. The housing and cover are made of steel. CSC4 series explosion-proof enclosures have a housing and a cover that is attached with bolts. Certified Excomponents are mounted in the housing. Certified conduit entries are mounted on the sides of the housing. The housing of CSC4 series explosion-proof enclosures has a sealing gasket between the housing and the cover at least an ingress rating. The housing and cover are made of steel. EBT series contact blocks, EH (PP, PB, S, KS) series pushbuttons and selector switches, and EL series indicator lights are Ex-components and are intended installation in CN4 and CSC4 series explosion-proof enclosures. A detailed description of the design of VC4, VH4, HV4, TSC4, CN4, TN4, and CSC4 series enclosures, with EBT series contact blocks, EH (PP, PB, S, KS) pushbuttons and selector switches, and series EL indicator lights is included in the operating manuals and registration certificates. The explosion-proof nature of VC4, VH4, HV4, TSC4, CN4, TN4, and CSC4 series enclosures, with EBT series contact blocks, EH (PP, PB, S, KS) pushbuttons and selector switches, and EL series indicator lights, depending on configuration, is ensured with "explosion-proof enclosure" types of protection from explosions according to GOST R (IEC :2003), "e type protection" according to GOST R (IEC :2006), "sealing with (m) compound" of "mb" level according to GOST R (IEC :2004), and the execution of their design in compliance with requirements of GOST R (IEC :2004). The combustible dust ignition protection nature of VC4, VH4, HV4, TSC4, CN4, TN4, and CSC4 series boxes with EH (PP, PB, S, KS) series pushbuttons and selector switches and EL series indicator lights is ensured by meeting the requirements of IEC and executing their design according to GOST R IEC The labeling placed on the housing of VC4, VH4, HV4, TSC4, CN4, TN4, and CSC4 series boxes with EBT series contact blocks, EH (PP, PB, S, KS) series pushbuttons and selector switches, and EL series indicator lights includes the following inmation: mark or name of manufacturer; name of item; sequential number of item according to the numbering system of the manufacturer;

7 Addendum to Certificate of Conmity No. Ross US. GB05.V03061 Page 6 explosion protection labeling; combustible dust ignition protection labeling; warning label "Disconnect from power grid prior to opening!"; ambient temperature range during operation; name or mark of certification center and certificate number and other inmation required by regulatory and technical documentation that the manufacturer must incorporate into the labeling. 4. SPECIAL CONDITIONS TO ENSURE OPERATIONAL SAFETY The X sign, following the explosion protection labeling, means that when operating VC4, VH4, HV4, TSC4, CN4, TN4, and CSC4 series explosion-proof enclosures with EBT contact blocks, EH (PP, PB, S, KS) series pushbuttons and selector switches, and EL series indicator lights, it is necessary to comply with the following special conditions: 1. All utilized wires or cables must be suitable a temperature of 80 C. 2. All unutilized openings must be equipped with certified covers of material equivalent to the housing materials and must comply with the level of protection. 3. The number of wires entering the junction box, taking into consideration the number of internal couplings (excluding shunts and ground wires) must not exceed the level indicated in the operating instructions each size of junction box. 4. Upon installation of pushbuttons, selector switches, and indicator lights with "d e" and "e mb" type explosion protection in an explosion-proof enclosure, the enclosure must be labeled, depending on the upper ambient temperature value, in the following manner: - 2 Ex de mb IIC T6 use in ambient temperature from -20 C t amb +40, or - 2 Ex de mb IIC T5 use in ambient temperature from -20 C t amb After completion of installation, all creepage path distances and electrical clearances must correspond to Table 1 in the GOST R standard. 6. The EBT series contact block must be mounted on a hard surface, using mounting devices. 7. The EBT series contact block can be installed in an explosion-proof enclosure with "d" type explosion protection or "e" type protection. 8. The EBT series contact block must be mounted so that there is a minimum of a 10 millimeter clearance from any conductive surface. 9. Prior to disconnecting wires from EBT series contact blocks, the wires must be de-energized. 10. Two wires with a cross-section of 0.5 mm 2 to 4 mm 2 can be connected to an EBT series contact block. The insulation of the wires must be stripped to a length of mm.

8 Page 7 Addendum to Certificate of Conmity No. Ross US. GB05.V The maximum operating ambient temperature to use the EBT series contact block may not exceed 73 C. 12. When cables are installed in ambient temperature conditions of lower than minus 10 C, it is necessary to use cables suitable these conditions. Safe operating conditions are set th in the operating instructions. 5. LIST OF DRAWINGS APPROVED BY THE CERTIFICATION CENTER Document number Date signed Date approved DS545M version C 5/6/99 7/30/2010 DS546M version C 2/3/00 7/30/2010 DS652 version C 8/20/01 7/30/2010 DS553M version E, 2 pages 2/17/00 7/30/2010 DS594M version D, 2 pages 09/12/00 7/30/2010 DS585 version D 08/04/00 7/30/2010 DS593M version E, 2 pages 09/11/00 7/30/2010 DS653 version C 8/22/01 7/30/2010 DS654 version C 8/22/01 7/30/2010 DS655 version B 8/22/01 7/30/2010 DS813 version C, 2 pages 06/10/2009 7/30/2010 DS814 version C, 2 pages 10/06/2009 7/30/2010 DS815 version A 03/08/10 7/30/2010 DS816 version A 03/08/10 7/30/2010 DS817 version A 08/14/09 7/30/2010 DS819 version A 03/08/10 7/30/2010 DS820 version A 03/08/10 7/30/2010 DS831 version A, 3 03/12/2010 7/30/2010 DS842 version A 9/18/2009 7/30/2010 DS843 version A 9/18/2009 7/30/2010 DS844 version A 8/14/2009 7/30/2010 DS845 version A 9/18/2009 7/30/2010 DS846 version A 11/17/2009 7/30/2010 DS847 version A 9/18/2009 7/30/2010 DS849 version C, 2 pages 7/22/2009 7/30/2010 DS854 version A 03/08/2010 7/30/2010 DS861 version A 07/06/2009 7/30/2010 DS878 version A 11/05/2010 7/30/2010 DS891 version A, 5 pages 6/28/2010 7/30/2010 DS885 version A, 4 pages 6/24/2010 7/30/2010 DS887 version A, 4 pages 6/24/2010 7/30/2010 DS888 version A 6/23/2010 7/30/2010 DS893A version A, 5 pages 6/28/2010 7/30/2010 Changes to the approved drawings or designs of the items may be made only with the approval of CCVE.