SDDG series
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ATEX ‘Zone 22’ Sw Disconnectors 25A - 63A How safe is your workspace? From July 2006 the onus was placed upon companies to ensure that all equipment within their organisations is suitable for the environment in which it is being used. This was aimed particularly at areas where there may be a possibility of a combustible atmosphere being present, even for short periods i.e. less than 10 hours/year. Typical industries where such atmospheres may be generated:- People normally think of such atmospheres as being gases, mists or vapours, however there are various industries where a conductive or non-conductive dust mixed with air in the right proportion can become explosive. It is these areas where the Craig & Derricott ATEX Group II (Zone 22) equipment can be used to help you comply with Health & Safety regulations. • Grain Mills • Powder Coating Plant • Cargo Handling • Waste Processing There are different degrees of protection against explosive dusts, and Zone 22 is defined as:“A place in which an explosive atmosphere, in the form of a cloud of combustible dust in air, is not likely to occur in normal operation but, if it does occur, will persist for a short period only. Applicable Regulations/Specifications • Directive 94/9/EC (“Manufacturers Directive”) Sets out the route equipment manufacturers must take to get their products certified for use in hazardous environments. • Directive 1999/92/EC (“Users Directive”) Defines the classifications for protection zones, and the approach users must take to ensure that the correct equipment is matched to specific hazardous environments. Both of the above are classed as ‘ATEX’ directives and are concerned solely with ensuring safety in the workplace. • • • • • • • • Dangerous Substances and Explosive Atmospheres Regulations 2002. Explosive atmospheres - Part 0: Equipment - General requirements. Explosive atmospheres - Part 31: Equipment dust ignition protection by enclosure “t”. Electrical apparatus for use in the presence of combustible dust - General requirements. Electrical apparatus for use in the presence of combustible dust - Protection by enclosures ‘tD’. Specification for degrees of protection provided by enclosures. (IP code) Specification for low-voltage switchgear and control gear. Safety of machinery. Electrical equipment of machines - General requirements. ATEX Switch Disconnectors 25A - 63A Craig & Derricott has been manufacturing enclosed switchgear for more than 50 years. We have incorporated all of that experience in producing an outstanding product that has now been approved for use in explosive dust atmospheres. Using high quality die cast aluminium and hinged lid sheet steel enclosures the range covers 20A - 63A ratings Catalogue Numbers Rating Moulded Padlocking Handle & Base mounted interiors Hinged lid sheet steel enclosure:Base mounted interior (63A) Hall Lane, Walsall Wood, Walsall, West Midlands WS9 9DP t: +44(0)1543 375541 f: +44(0)1543 361619 e: sales@craigandderricott.com

ATEX ‘Zone 22’ Sw Disconnectors 25A - 63A Safety Features Design Features Auxiliary Contacts All items allow for the fitting of up to three padlocks in the ‘Off’ position. The ‘EB’ addition to the catalogue numbers denotes the inclusion of 2 off early break contacts. In all cases these are factory fitted to the isolator interior. Technical Specification Data supplied against tests to BS EN 60947-3 Rated thermal current Rated insulation voltage Rated impulse voltage Rated operational power (3 phase AC) Rated short time withstand current (1 sec) Max. fuse size for short circuit protection (gG...

Technical Data Sheet i-SWitCh ATEX 'Zone 22' Sw Disconnectors 25A - 63A page Hall Lane, Walsall Wood, ^^^^^^ Walsall, West Midlands WS9 9DP