1 VERAK-EMC IMnet 310 ELECTRONIC SYSTEMS CREATE NOISE All electronic circuits create electronic noise, which can be manifest in a number of forms; Mains borne interference (Conducted interference), and Electronic circuits generating radio waves (Radiated interference). Both these sources of interference generated by a system can affect other electronic systems within the area. INTERNATIONAL STANDARDS DICTATE THE LEVELS OF ACCEPTABLE ELECTRONIC NOISE The EU along with nearly all industrial countries have clearly defined legislation which states the ‘Electro-Magnetic Compatibility (EMC) between systems in different working environments. These standards state the limitations of electronic interference emission permissible by a system. They also define the level of general electronic noise for the correct operation of systems. Therefore all electronic systems must be tested for both emission and immunity. The level of permissible emissions and immunity is set for either the industrial environment where higher levels are acceptable or office environments where permissible levels are lower. Producing a system to be used in an industrial environment means it is allowed to emit higher levels of interference. The counter case is that it must be capable of operating in an environment of higher interference. There are a large number of regulatory bodies and directives relating to EMC, the most commonly used in the electronics industry are the following:- CENELEC EN55081/2, AND 55022 CISPR 22 FCC VDE BS Within the EU CE marking is compulsory, therefore all systems must comply with the relevant EN standard. THE ENCLOSURE CAN CONTRIBUTE TO THE SOLUTION Electronic engineers are trying to solve EMC problems at the circuit board level for all electronic systems. This is not always possible or economic. The characteristics of some electronic products are, by their very nature, inherently noisy. It is at this point where the enclosure can contribute to the EMC solution. The enclosure can be used to attenuate the RFI (Radio Frequency Interference) signals generated by the system and general interference in the environment reaching the system. Again some systems are highly susceptible to external interference and an EMC shielded cabinet is often the best solution. APW enclosures are designed to minimise the effect of EMI & RFI. A suitable enclosure can form an integral part of an EMC solution. Only complete systems can carry the CE mark and therefore its vital the correct cabinet is selected. Emissions can be significantly reduced when using VERAK. This will assist integrators to achieve the necessary attenuation levels. A typical enclosure with an attenuation of 60dB at a frequency of say 300MHz in theory can cut the systems emitted signal by 99.9%. Systems often have to be constructed to achieve levels of attenuation. APW’s experience will greatly benefit during any integration process. Cable entry and exit points, seals and filters play an important part in the effectiveness of the overall system. VERAK and its accessories combined with APW’s experience in EMC simplify a complex problem for its customers. EMC finger and knife edge detail EMC meshed laminated glass Marcus, these pics obviously need to be clipped and resized etc .if you want to use them
Transcript
1
VERAK-EMC
IMnet 310
ELECTRONIC SYSTEMS CREATE NOISEAll electronic circuits create electronic noise, which can bemanifest in a number of forms; Mains borne interference(Conducted interference), and Electronic circuits generatingradio waves (Radiated interference). Both these sources ofinterference generated by a system can affect other electronicsystems within the area.
INTERNATIONAL STANDARDS DICTATE THE LEVELSOF ACCEPTABLE ELECTRONIC NOISEThe EU along with nearly all industrial countries have clearlydefined legislation which states the ‘Electro-MagneticCompatibility (EMC) between systems in different workingenvironments. These standards state the limitations of electronicinterference emission permissible by a system. They also definethe level of general electronic noise for the correct operation ofsystems. Therefore all electronic systems must be tested forboth emission and immunity. The level of permissible emissionsand immunity is set for either the industrial environment wherehigher levels are acceptable or office environments wherepermissible levels are lower.Producing a system to be used in an industrial environmentmeans it is allowed to emit higher levels of interference. Thecounter case is that it must be capable of operating in anenvironment of higher interference.There are a large number of regulatory bodies and directivesrelating to EMC, the most commonly used in the electronicsindustry are the following:-
CENELECEN55081/2, AND 55022CISPR 22FCCVDEBS
Within the EU CE marking is compulsory, therefore all systemsmust comply with the relevant EN standard.
THE ENCLOSURE CAN CONTRIBUTE TO THE SOLUTIONElectronic engineers are trying to solve EMC problems at thecircuit board level for all electronic systems. This is not alwayspossible or economic. The characteristics of some electronicproducts are, by their very nature, inherently noisy. It is at thispoint where the enclosure can contribute to the EMC solution.The enclosure can be used to attenuate the RFI (Radio FrequencyInterference) signals generated by the system and generalinterference in the environment reaching the system. Againsome systems are highly susceptible to external interference andan EMC shielded cabinet is often the best solution.
APW enclosures are designed to minimise the effect of EMI &RFI. A suitable enclosure can form an integral part of an EMCsolution.Only complete systems can carry the CE mark and therefore itsvital the correct cabinet is selected.Emissions can be significantly reduced when using VERAK. Thiswill assist integrators to achieve the necessary attenuationlevels. A typical enclosure with an attenuation of 60dB at afrequency of say 300MHz in theory can cut the systems emittedsignal by 99.9%.Systems often have to be constructed to achieve levels ofattenuation. APW’s experience will greatly benefit during anyintegration process.Cable entry and exit points, seals and filters play an importantpart in the effectiveness of the overall system. VERAK and itsaccessories combined with APW’s experience in EMC simplify acomplex problem for its customers.
EMC finger and knife edge detail
EMC meshed laminated glass
Marcus, these pics obviouslyneed to be clipped and resizedetc .if you want to use them
2
VERAK - THE PREFERRED SOLUTION
APW has been supplying shielded cabinets for 20 years and hasbuilt up extensive knowledge in this subject. VERAK is the latestevolution which incorporates the best of the current technicalinnovations. APW has successfully supplied a large number ofsystems to mission critical applications.
APW- EXPERTS IN SHIELDED CABINETS
n High RFI attenuationVERAK has a very high level of attenuation therefore it willnormally solve all commercial EMC problems.
n Simplified cable entryVERAK’s careful management of cables and filters enablesenclosure attenuation to be maintained.
n Thermal managementAll electronic systems generate heat. There is no point in asystem complying with the EMC regulations by putting it into anenclosure if the system fails to function due to over heating. TheVERAK system has a large number of thermal control andmanagement products to ensure an effective solution to theindividual system’s thermal requirements.
n StylingConsiderable attention to detail is given to system design. Oncein an enclosure the visible part of the product is its enclosure.VERAK reflects the time, cost and attention to detail put into thesystem.
n Simple baying.For large systems it can be very cost effective to bay enclosurestogether rather that having separate racks with the cabling andfiltering inter-linking the individual racks. For this reason VERAKhas been made to be quickly and easily bayed together withouteffecting the unit’s attenuation level.
n The VERAK range and accessoriesThe comprehensive range of VERAK sizes plus its very extensiverange of accessories means it can cope with the most unusualsystem requirements using standard ‘off the shelf’ components.
n Heavy duty frame and robust claddingMost electronic systems are built into an EMC enclosure withinthe systems manufacturers factory. These systems can be heavybut more importantly the system needs to be shipped as acompleted solution to the end customer who could be anywherein the world. The Enclosures frame is strong enough to protectthe system and ensure that transporting the units does notdamage the EMC integrity.
VERAK-EMC
Frequency MHz
Atte
nuat
ion
dB
VERAK-EMC
‘E’ Field
‘H’ Field
VENTILATED TOP
SCREENED GLASS
CONDUCTIVE FINISH TO
HEAVY DUTY SHELF
SMOOTH & EASY DOOR
GLAND PLATE
3
DimensionsU Height Overall Height mm (IP55) Internal Height mm
12U 649,2 535,0
17U 871,5 757,3
22U 1093,7 979,5
27U 1316,0 1201,8
32U 1538,2 1424,0
37U 1760,5 1646,3
42U 1982,7 1868,5
47U 2205,0 2090,8
Description Addition to height
Ventilated top 25,8mm
Heavy duty castors 59.7mm
Adjustable feet Min. 25 Max 60mm
VERAK PRIMARY RACK BUILD600MM WIDE RACK
800MM WIDE RACK - AS ABOVE BUT WITH 4 OFFCABLE REDUCING CHANNELS
� � � � � VERAK EMC PRIMARY RACK BUILDFor popular sizes the VERAK EMC is now available with pre-defined cladding.Contents of kitItem/Description
4 Corner verticals
2 End frames
4 19” panel mounts
4 or 6 Panel mount supports
2 Side panels
1 Top cover (ventilated or IP65)
1 Bottom EMC screen (ventilated or IP65)
1 Top EMC screen
1 Steel front door
1 Shortened rear door
1 10U Cable access panel
4 Reducing cabling channels (on 800mm wide)
1 Set of adjustable feet
1 Earthing kit
The Robust, high Attenuation, EMC enclosure for Industrial andTelecoms applications.
Use the letters (�,�,�) to lead you through the selection ofcomponents required for the high performance VERAK EMC.
Height
WidthDepth
Ordering informationHeight (U) Sealing W x D (mm) Order code27 EMC + ventilation 600 x 600 589-790600K27 EMC / IP65 600 x 600 589-790700F37 EMC + ventilation 600 x 600 589-790601H37 EMC / IP65 600 x 600 589-790701D37 EMC + ventilation 600 x 800 589-790602F37 EMC / IP65 600 x 800 589-790702B42 EMC + ventilation 600 x 600 589-790603D42 EMC / IP65 600 x 600 589-790703L42 EMC + ventilation 600 x 800 589-790604B42 EMC / IP65 600 x 800 589-790704J42 EMC + ventilation 800 x 600 589-790605L42 EMC / IP65 800 x 600 589-790705G42 EMC + ventilation 800 x 800 589-790606J42 EMC / IP65 800 x 800 589-790706E
5 way switched socket 640-912635C 640-912635C 640-912635C 640-912635C6 way switched socket 640-912636A 640-912636A 640-912636A 640-912636A9 way switched socket 640-912637K 640-912637K 640-912637K 640-912637K13 way switched socket 640-912639F 640-912639F 640-912639F 640-912639F19" mounting bracket (5 way only) 640-912732E 640-912732E 640-912732E 640-912732EVertical mounting bracket 640-912784H 640-912784H 640-912784H 640-912784H
PDPs
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Note: Accessories are shown on a IMRAK 1400 frame.All accessories are interchangeable between VERAK and IMRAK 1400
Ordering information
VERAK-EMC Product selector
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FEATURES AND BENEFITS
n High EMC attenuationHigh level shielding, helping systems meet EMC legislation
n Simplified cable entryRemovable recessed panels enable cable entry into the rackfrom above or below the rear door
n Transparent doorsTransparent door option is available which does notcompromise the racks EMC shielding effectiveness and allowvisual inspection of equipment without opening the door
n Robust claddingProtects the system in all shop-floor and industrialenvironments
n Heavy duty frameAllows fully loaded racks to be safely transported. The VERAKis capable of taking 750kg loads
n Supplied configuredRacks delivered to site with all accessories fitted to thecustomer specification, thereby making installation quicker andeasier
n Simple bayingRacks can be linked together for larger applications quicklywhilst maintaining the EMC and IP seal
n AccessoriesA full range of proven accessories are available to help withnetworking, electronic or electrical applications
n StylingA racking system with the appearance to complement themost advanced office, laboratory or manufacturingenvironment
n Thermal managementEMC screened ventilation plates top and bottom allow naturalor forced convection whilst maintaining integrity of EMC rack
27U x 600 x 600 1201.8 27 1311.8 597.6 678.0 490.0 440.0 558.0 380.0 450.0 393.4 363.8
27U x 600 x 800 1201.8 27 1311.8 597.6 878.0 490.0 640.0 758.0 380.0 450.0 593.4
363.8
27U x 800 x 600 1201.8 27 1311.8 797.6 678.0 690.0 440.0 558.0 580.0 650.0 393.4
563.8
27U x 800 x 800 1201.8 27 1311.8 797.6 878.0 690.0 758.0 580.0 650.0 593.0 593.4
563.8
37U x 600 x 600 1646.3 37 1756.3 597.6 678.0 490.0 440.0 558.0 380.0 450.0 393.4
363.8
37U x 600 x 800 1646.3 37 1756.3 597.6 878.0 490.0 640.0 758.0 380.0 450.0 593.4
363.8
37U x 800 x 600 1646.3 37 1756.3 797.6 678.0 690.0 440.0 558.0 580.0 650.0 393.4
563.8
37U x 800 x 800 1646.3 37 1756.3 797.6 878.0 690.0 640.0 758.0 580.0 650.0 593.4
563.8
42U x 600 x 600 1868.5 42 1978.5 597.6 678.0 490.0 440.0 558.0 380.0 450.0 393.4
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MAIN STRUCTUREFRAMEThe frame comprises of 4 verticals and 2 end frames
GLAZED DOORRFI screened, tinted glass complete with swing handle. Therequired lock or lock blank needs to be ordered separately.
SHORTENED STEEL DOORS AND 10U CABLE ACCESSPANELA shortened steel door needs to be ordered separately from the10U recessed cable access panel. The cable access panel isrecessed by 60mm so cable connectors do not protrude out fromthe foot print The panel can be fitted above or below the doorand is easily removed to facilitate the fitting of cable connectorsetc.
The 1.6mm steel door comes complete with swing handle. Therequired lock or lock blank needs to be ordered separately
TOP/BOTTOM PLATESFor VERAK EMC to work as an EMC enclosure top and bottomplates must be fitted.
PLAINThis plain EMC shielding panel which can be fitted at either thetop or bottom of the rack can also be utilised as a cable entrypanel
VENTEDThe vented EMC shielding panel allows air to flow through therack assuming a ‘vented plate' is fitted at both the top andbottom of the rack and the rack is fitted with a ventilated topcover. A top mounted ‘fan tray' can also be fitted under the topmounted ‘vented plate’ to provide forced air cooling. See page247 for fan tray details.
STEEL DOORS1.6mm steel door complete with swing handle. The required lockor lock blank needs to be ordered separately
SIDE PANELSSide panels are sold in pairs and are 1.6mm steel painted inRAL7035. The side panels are fitted using captive pozi drivescrews which allow the units to easily fitted or removed.
BAYING BRACKET KITThe kit consists of the required length of self-adhesive RFIcontact fingers and IP gasket material plus 6 brackets which lockthe two racks together to form a bayed suite of racks.For example: If three racks are to be bayed together to makeone suite of racks, one pair of ‘side panels’ are required (to beused either end of the suite) and two ‘baying bracket kits’.
PLAIN IP55 TOPIP 55 unvented top cover.
SIDE VENTED TOP COVERThis top allows convected air to flow out through the top. Note,for air to be able to flow through the rack a vented top andbottom plate must be fitted.
FULLY VENTED TOP COVERA fully vented top is recommended when a fan tray is to beused. Note, for air to be able to flow through the rack a ventedtop and bottom plate must be fitted.
LIFTING EYESLifting eyes are sold as a kit of 4. Note, ‘side vented’ and ‘fullyvented’ top covers must be removed before lifting eyes can befitted.
VERAK EMC
Frame Glazed door
Shortened steel doors Top/bottom plates
Steel doors Side panels
Top cover
8
SWING HANDLES
Both the metal and glass doors have a swing handle fitted as standard. Pleasenote, the locks for the swing handle need to be ordered separately.
Keyed alike lock - self lockingAll locks supplied operate with the same key and the door automatically lockswhen closed.
Keyed alike lock - manual lockingAll locks supplied operate with the same key. To lock the door the key must beturned.
Triangular key drive lock - self lockingThe lock is operated by a triangular ‘machine cabinet’ drive. The door automaticallylocks when closed.
Lock blankThe lock blank fills the hole in the swing handle when a lock is not required. It alsoacts as a spring clip holding the handle into its housing.
10U cable panel 571-565896K 571-565896K 571-565896K 571-565896K 571-565896K 571-565897H 571-565897HShortened steel door 571-565667C 571-565669K 571-565669K 571-565670C 571-565670C 571-565678J 571-565678JFor the sidesSide panels 571-565743B 571-565751C 571-565752C 571-565755F 571-565756D 571-565755F 571-565756DEMC/IP baying kit 571-565875G 571-565883H 571-565884F 571-565887L 571-565888J 571-565887L 571-565888JTop coversPlain IP55 top 567-565635K 567-565635E 567-565636C 567-565635E 567-565636C 567-565639H 567-565640ASide vented top 571-565651A 571-565651G 571-565652E 571-565651G 571-565652E 571-565655K 571-565656HFully vented top 571-565659G 571-565659B 571-565660F 571-565659B 571-565660F 571-565663L 571-565664JFor the bottom of the rackAdjustable feet 567-565343A 567-565343A 567-565343A 567-565343A 567-565343A 567-565343A 567-565343AHeavy duty castors 567-565408K 567-565408K 567-565408K 567-565408K 567-565408K 567-565408K 567-565408KLifting eyes 567-565489F 567-565489F 567-565489F 567-565489F 567-565489F 567-565489F 567-565489F100mm plinth corners 567-565504C 567-565504C 567-565504C 567-565504C 567-565504C 567-565504C 567-565504CPlinth side trim kit 802-561035H 802-561035H 802-561036F 802-561035H 802-561036F 802-561035H 802-561036FPlinth front and rear trim kit 802-561038B 802-561038B 802-561038B 802-561038B 802-561038B 802-561039L 802-561039L
PLINTH AND PLINTH TRIM KITSPlinth kits consist of four identical corner sections and four infillsections which allow easy modification for cable entry.Adjustable feet which will align VERAK on uneven surfaces canbe fitted to a plinth.
Plinth and plinth trim kits
9
VERAK-IPVERAK–IP for Industrial andharsh environmentsAs computing and communication equipment use has expandedout of the office environment and into all parts of business,including the factory floor, it has become necessary to enhancethe protection offered.
VERAK-IP from APW Electronics is the ideal solution to thehousing of computing and communications in industrialenvironments.
Offering enhanced dust and moisture protection, VERAK-IP canbe used in places such as basements, manufacturing areas orprocess control situations. Whilst providing moisture protection,VERAK-IP offers the benefit of enhanced dust protection which inmany cases has a long term impact on the life and efficiency ofcomputing equipment. As electronics withinequipment become covered in dust, the likelihood of failureincreases, with the real risk of fire increasing with time.
VERAK-IP comes with removable sides and door thus enablingmaximum access for installation and commissioning. Adding 19”mounting and using the possible cable access in the base, top orrear simplyenhances the installation versatility. The wide range of shelving,including heavy duty and sliding, also means that the widestpossible range of equipment can beaccommodated within a VERAK. Enhanced security is providedthrough a four point door locking mechanism and also ensuresgood sealing & simple door operation.
As a result the VERAK-IP offers the strongest standard productdesigned for the computing andcommunications business.
IP 65 rating
IP rated
Accessories
Gland plateentry
Glass or metal doors
Smooth & easy
VERAK - THE PREFERRED SOLUTION
n High protection - IP 65n Secure four point door locking systemn Thermal management solutions via forced air,
temperature control or air conditioningn Simplified cable entry, via top, base or rearn Quality Stylingn Simple baying with self aligning bolt systemn Heavy duty frame and robust cladding rated at 750 Kg.n The VERAK range and accessories
The comprehensive range of VERAK sizes plus its extensive rangeof accessories means it can cope with the most unusualequipment and system requirements using standard ‘off theshelf’ components.
FeaturesIP65Load rating 750 kgSupplied fully assembled and configured with accessoriesHeights 27U, 37U and 42U2 width options - 600mm and 800mm2 depth option - 600mm and 800mmIP ventilation available.RAL 7037 and RAL 7035.Wide range of accessories.Robust claddingMulti point door locking
StandardsIEC 297-2DIN 41494, part 7DIN 41491, part 1 (mounting dimensions)EN 60950VDE 0100
IP RATINGSThe tables below give the definitions of DIN40050, BS EN 60529 and IEC 529for different IP levels. The IP (Index of Protection) numbers indicate the levelsof protection available.
FIRST NUMBER
Firstindex Designationnumeral0 No protection1 Protection against large foreign bodies2 Protection against medium foreign bodies3 Protection against small foreign bodies4 Protection against very small foreign bodies5 Limitation of ingress of dust6 Prevention of ingress of dust
SECOND NUMBERSecondindex Designationnumeral0 No protection1 Protection against water dripping vertically2 Protection against water dripping non-vertically3 Protection against spray water4 Protection against splash water5 Protection against jet water6 Protection against powerful water jets7 Protection against temporary submersion8 Protection against continuous submersion
DEGREES OFWATER
PROTECTION
DEGREES OFPROTECTIONFROM SOLID
FOREIGNMATTER
10
DimensionsU Height Overall Height mm (IP55) Internal Height mm
12U 649,2 535,0
17U 871,5 757,3
22U 1093,7 979,5
27U 1316,0 1201,8
32U 1538,2 1424,0
37U 1760,5 1646,3
42U 1982,7 1868,5
47U 2205,0 2090,8
Description Addition to height
Heavy duty castor 59.7mm
Adjustable feet Min. 25 Max 60mm
VERAK IP PRIMARY RACK BUILD600MM WIDE RACK
800MM WIDE RACK - AS ABOVE BUT WITH 4 OFFCABLE REDUCING CHANNELS
����� VERAK IP PRIMARY RACK BUILDFor popular sizes the VERAK IP is now available with pre-definedcladding.Contents of kitItem/Description
4 Corner verticals
2 End frames
4 19” panel mount
4 or 6 Panel mount supports
2 Side panels
1 Top cover
1 Bottom gland plate
1 Glazed door
1 Steel door or 1 steel door + IP55 5U vent panel (top) +IP55 5U fan
panel bottom
4 Reducing cabling channels (0n 800mm wide)
1 Set of adjustable feet
The Robust, IP65 enclosure for Industrial & harsh environments.
IP65 Protection from dust - Protection against water jet.
Use the letters (�,�,�) to lead you through the selection ofComponents required for the robust IP65 VERAK IP.
Ordering informationHeight Description W x D (mm) Order code27U Full length steel rear door 600 x 600 588-790300H27U Short door + forced ventilation 600 x 600 588-790400D37U Full length steel rear door 600 x 600 588-790301F37U Short door + forced ventilation 600 x 600 588-790401B37U Full length steel rear door 600 x 800 588-790302D37U Short door + forced ventilation 600 x 800 588-790402L42U Full length steel rear door 600 x 600 588-790303B42U Short door + forced ventilation 600 x 600 588-790403J42U Full length steel rear door 600 x 800 588-790304L42U Short door + forced ventilation 600 x 800 588-790404G42U Full length steel rear door 800 x 600 588-790305J42U Short door + forced ventilation 800 x 600 588-790405E42U Full length steel rear door 800 x 800 588-790306G42U Short door + forced ventilation 800 x 800 588-790406C
Height
WidthDepth
Note: For forced ventilated option a fan mains lead must be ordered
