EMC. Connectors and electromagnetic compatibility - EMC. Connectors and electromagnetic compatibility (EMC) Directives and standards.

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1 ULTIPOLE CONNECTORS EC CN EC Connectors and electromagnetc compatblty Connectors and electromagnetc compatblty (EC) Drectves and standards. The concept of Electromagnetc Compatblty (EC) s the reversal n the postve sense of what was untl recently known as Electromagnetc Interference (EI): we have electromagnetc compatblty between a devce and the envronment (ncludng surroundng equpment) when there s no recprocal electromagnetc nterference or when ths s wthn tolerable lmts. In other words, to obtan electromagnetc compatblty, measures must be adopted amed at brngng the electrcal or electronc equpment to levels of emsson and electromagnetc mmunty aganst electromagnetc nterference such that t contnues to functon properly wthout causng dsturbance to other equpment present n the surroundng envronment. - EC - EC - EC - EC EC - EC - EC - overvew In the electrcal equpment of ndustral machnes, rectangular multpole connectors wth ther metallc enclosures are wdely used due to ther hgh standards of safety, relablty, mechancal robustness and resstance to corroson and polluton. These connectors are passve electromechancal components: they do not generate electromagnetc nterference and are not dsturbed n ther functon. Taken by themselves, therefore, they fall outsde the scope of Drectve 89/336/EEC on electromagnetc compatblty and the CE mark s therefore not requred for EC aspects: t stll apples, however, under the Low Voltage Drectve. It s rather the devces and ndustral equpment mentoned above, n whch the connectors are for the most part used (e.g. on-board electrc panels) whch, taken as a whole, must be CE marked also for EC aspects, havng to meet the fundamental safety requrements of the EC Drectve. For EC n ndustral envronments two European standards are n force, not ntended for specfc equpment, whch regulate the emssons and mmunty of devces. These are therefore generc standards, one for emssons (EN (1993), class. IEC , 1994, IEC CISPR 26 project) and one for mmunty (EN (1995), class. IEC , 1995, IEC ) project 1). These apply n the absence of provsons n the partcular EC product standards or n the total absence of the latter. For ndustral equpment, when applances are not ntentonally desgned to generate rado frequences 2), the latter case apples (no partcular standards). In European standards for electrcal panels (EN ) and n those for electrcal equpment of machnes (EN ) emsson and mmunty lmts have for some tme been n the process of beng ssued, as well as ther verfcaton, f necessary, wth reference to above-mentoned ndustral envronment EC standards. EC testng should not be performed on ndvdual components, but rather on the entre apparatus, at tmes not wthout nconsderable logstcal dffcultes due to the sze, reproducng as far as possble ther operaton n real operatng condtons. It s therefore ncorrect to assgn lmts of electromagnetc emsson and mmunty mposed on the equpment on, for example, connectors present as components of the equpment. 1) there are two smlar for the other standardzed envronment, defned as resdental, commercal and lght ndustral envronment, respectvely EN (1992), class. IEC 110-7, 1992 for emssons (IEC CISPR 27 project) and EN (1992), class. IEC 110-8, 1992 for mmunty (IEC project). 2) n whch case for such devces, called IS (ndustral, scentfc, medcal) EN standard for emsson of rado nterference would apply. 379

2 ULTIPOLE CONNECTORS EC CN EC Connectors and electromagnetc compatblty EC - overvew Electromagnetc nterference and ILE connectors. The entry nto force of the EC Drectve, wth requrement for electrcal and electronc equpment to comply wth the levels of electromagnetc polluton dctated by the standards, brought renewed nterest n all the approprate steps to mtgate the effects of electromagnetc nterference. Electromagnetc nterference can occur n two forms: conducted or radated. Wth reference to connectors, conducted nterference transmtted on conductors wred to the connectors, s, for example: harmonc, supermposed on the voltage of the power supply at 50 Hz, caused by wthdrawal of based current or by electromechancal or electronc swtches, or rado frequency nterference nose whch s nductvely or capactvely coupled wth the cable, overlappng transported sgnals. Ths s characterzed by frequency and ampltude (ntensty) and can be fltered to some extent, both n the outgong (emsson) and ncomng (mmunty) drecton, only va n-lne passve electrcal flters, whch the desgner of the electrcal equpment must foresee snce he s the only one wth a knowledge of all the terms of the problem 3). Radated nterference, transmtted n the form of electromagnetc waves, s characterzed by the values of ampltude of assocated electrc (V/m) and magnetc felds and wth the frequency or frequency band (rarely s ths located on a sngle frequency, more often t occupes a band). Ths may come from nsde the devce: n ths case t s necessary to mtgate emssons. Or from the outsde, n whch case t s necessary to rase mmunty. khz Hz conducted nterference rradated nterference By test conventon, nterference wth frequency up to 30 Hz s consdered to be conducted and rradated wth frequency above 30 Hz up to 1 GHz. 3) For example, for trapezodal Sub-D type connectors for dgtal data transmsson, there are connectors on the market whch ncorporate general purpose flters for any conducted nterference. The sources of electromagnetc nterference are classfed as ntentonal and unntentonal. The frst (e.g. rado-telecommuncaton antennas, moble phones) use hgh frequency electromagnetc felds for functonal reasons. For the second (e.g. gnton of nternal combuston engnes, electrc arc furnaces) they are a by-product. 380

3 ULTIPOLE CONNECTORS EC CN EC Connectors and electromagnetc compatblty In most ndustral applcatons, compared to the overall EC ssues of a devce, connectors (nserts + enclosures), taken by themselves, are not the prorty concern of the desgner. The enclosures of the low-frequency ndustral connectors, takng shape as a barrer to a shell, are mplctly a perpheral aspect: the desgner of electrcal equpment / electroncs wll take care frst of all the core of the EC problem, that of the actve components to nsde of your system by lmtng the emssons and enhance mmunty. In fact, to have sgnfcant problems due to radaton through the openng consttuted by a connector enclosure on a control panel, there must be a partcularly effcent radofrequency source nsde the panel. Essentally, sgnfcant desgn errors must have been commtted regardng the EC of the entre equpment. In certan cases the couplng of connectors may consttute the weak lnk n the chan, for example where t s not possble for functonal reasons to further reduce nterference of the electroncs nsde the control panel. In these cases one must rely on the effcency of the sheld. Even f the equpment manufacturer uses shelded fabrcaton and hgh qualty shelded cables, contnuty and homogenety of such sheldng could be sgnfcantly degraded precsely n the passage between moble connector and panel. In dealng wth electromagnetc compatblty of electrcal equpment of an ndustral machne, a second aspect to be addressed as a prorty s the presence of large quanttes of nterface cablng. In these cases, the sgnfcant attenuaton of the sheld necessary for the cables must not be jeopardsed by the connector enclosures due to mperfect earthng of the cable sheld. It should nevertheless be ponted out that ncreasng sheldng may not be suffcent to solve possble problems and should be consdered as a complementary choce. EC - overvew Electromagnetc sheldng of connectors: fundamental prncples. To consderng electromagnetc compatblty of an electrcal/electronc devce n the fnal verfcaton rather than n the desgn phase almost always leads to a substantal ncrease n overall development tme and costs. The desgner who deals wth electromagnetc compatblty ssues should use the same rules and the same precautons regardless of whether the equpment s subsequently shelded. Numerous products meet electromagnetc compatblty standards wthout the use of sheldng. However, when all other lmtng nterventons are mpossble or uneconomcal, recourse to ncreased effcency of the electromagnetc sheld s the only answer. An electromagnetc sheld s a barrer to the transmsson of electromagnetc felds. To generalse the concept to nclude conducted emssons, a flter can be consdered as a sheld. We wll restrct ourselves here to consderng a sheld as a barrer to radated emssons. The metallc contaners whch completely enclose an electrcal/electronc devce or a part thereof consttute an electromagnetc sheld, wth the task of preventng the emssons of electrcal/electronc devces or a part thereof to radate outsde the equpment contaner tself. A cable connected to a devce s part of the same for the purposes of electromagnetc compatblty. A flexble multcore cable s shelded by surroundng the nsulated conductors wth a conductve metal mesh. An electromagnetc sheld s characterzed by a parameter whch measures ts effcency. Attenuaton of the sheld s the rato between the radated power generated nsde a devce and the resdual radated power outsde the unt. Attenuaton ntroduced by a sheld can be measured by comparng the absence and presence of the sheld. Sheldng attenuaton s measured n db (decbels). 20 db s equvalent to an order of magntude,.e. attenuaton of a factor of 10, 40 db = attenuaton of a factor of 100, etc. 381

4 ULTIPOLE CONNECTORS EC CN EC Connectors and electromagnetc compatblty EC - overvew To obtan large sheldng attenuaton values (e.g. 100 db) the sheld must completely enclose the electronc devce and not have any means of access from the outsde, such as openngs, jonts, cracks or cables. Any means of access through a sheld, f not properly treated, can drastcally reduce the effcency of the sheld. The passage of a cable through a sheld must be properly consdered. One common method s to place flters on the cable at whch t crosses the sheld. Another s to use shelded cables, wth ther shelds connected for the entre permeter to the equpment sheld. To reduce radated emssons of a cable, the cable sheld must be connected to a pont wth zero potental (an deal ground therefore, not a logcal ground of an electronc crcut). To acheve electromagnetc sheldng conductve materals (metals) are used. Sheldng attenuaton depends manly on the electrcal conductvty of the materal and thckness of the sheld. Rectangular or square connectors - specal case - ntrnscally ansotropc, are more dffcult to sheld and less predctable n behavour than crcular connectors (sotropc geometry) used, not by accdent, wth coaxal termnatons for RF applcatons. Connector enclosures are typcally made of alumnum alloy, excellent metal for sheldng electrc felds because t s an excellent conductor. It s also better than steel n sheldng phenomena of an mpulsve nature (typcal example s electrostatc dscharge) whch cause nterference n the hgh frequency spectrum and s among the most nsdous and dangerous. It s mportant to ensure electrcal contnuty along the boundary of the enclosure, not only to ensure hgh sheldng attenuaton but also to avod accumulaton of statc electrcty. It s mportant not to economcally tp the balance of a screenng system whch s only as effectve as ts weakest component. A good shelded cable has a sheld attenuaton greater than that attrbutable to the connector, but only for very small lengths of cable (e.g. one metre). When the length of the shelded cable ncreases, sheld attenuaton s sgnfcantly reduced. Ths ndcates that t s much more mportant to mprove the sheld qualty of cables, whch are manly responsble for radated nterference emssons and n an electrcal system are often present n consderable quantty, before that of the connector. What dramatcally ncreases the effcency of sheldng s the qualty of ts connecton to the conductor: EC cable glands create a very homogeneous and contnuous contact between the cable sheld and connector enclosure. EC connector enclosures and accessores. In lght of the foregong, ILE has developed for desgners of the electrcal/electronc machne equpment the new seres of EC connector enclosures and accessores. Avalable n bulkhead mountng housngs and hood versons n the varous szes 06/10/16/24, they mantan the robustness and relablty of standard types whlst possessng ncreased hgh frequency sheldng characterstcs. In the development of EC enclosures recourse to geometrcal modfcatons compared to the standard versons has been avoded so as not to affect ther dmensonal compatblty wth the latter: n usng EC enclosures the equpment desgner need not foresee any changes n layout due to ncreased dmensons and need not renounce the convenence of the tradtonal lever closures. The ncrease n sheldng attenuaton s acheved prmarly by provdng a homogeneous and as unform as possble electrcal contnuty of earthng to the cable sheld n the connecton between cable and hood and between hood and enclosure. At the contact between the bulkhead mountng housngs and fxng surface a specal conductve gasket s foreseen. 382

5 ULTIPOLE CONNECTORS EC CN EC Connectors and electromagnetc compatblty EC connector. EC cable gland wth contact element for cable sheldng EC enclosures wth conductve coatng EC gasket n specal conductve materal EC - overvew The enclosure surfaces are treated to make them extremely conductve whle mantanng the necessary corroson resstance. The bulkhead mountng housng has a specal conductve gasket. For best results the surface underneath the gasket should be conductve. Snce the use of ths enclosure system presupposes the use of shelded cables, the hood should comprse a specal cable gland wth anchorng devce for the cable sheld. These metal cable glands ensure IP65 protecton ratng, are resstant to corroson and equpped nternally wth a contact element wth geometry that ensures unform earthng of the cable conductor sheld on the metal shell of the hood. Even wth standard enclosures (not EC), the contact wth an EC cable gland between the cable sheld and the connector enclosure, permanently earthed to the nsert nsde, produces an attenuaton of electromagnetc nterference on average hgher (by approx db up to 600 Hz, correspondng to a factor of 2-5,6) than the attenuaton acheved by connectng the sheld mesh drectly to the earth termnal of the connector nsert. The reasons for ths are: - the unform 360 contact va the contact devce of the EC cable gland avods what nstead happens when the sheld mesh s earthed to the earth termnal of the connector,.e. the dscontnuty of the sheld whch necessarly opens precsely around the connector; - more effcent dstrbuton of nduced current crculatng on the sheld mesh; - drectly nvolvng the metal shell consttuted by the enclosure avods transmttng nterference to the connector, as happens when the sheld s connected to the earth termnal of the connector. 383

6 ULTIPOLE CONNECTORS EC CN EC Connectors and electromagnetc compatblty EC - overvew Expermental tests. Tests for measurement of the sheldng of ILE specal EC enclosures for multpole rectangular connectors for ndustral use were conducted at the CESI EC Laboratory n lan, natonal notfed body for certfcaton under the EC Drectve. Sheldng attenuaton of a component s defned as the rato of the power radated wthn the component and the maxmum nterference power outsde the component n the room (VG ). For a connector t can be expressed, n analogy wth cables, as a functon of transfer mpedance, whch s the rato between the voltage nduced n the sheld and the current flowng outsde the same. The transfer mpedance measurement s a wdely used and accepted method to determne sheldng attenuaton of coaxal cables and connectors. Only recently, due to the ncrease n dgtal data transmsson speeds and the ncrease n frequences of transmtted sgnals, the ssue of dentfyng effcent and repeatable methods for measurng sheldng effcency, also for connectors tradtonally consdered low frequency, has been addressed at a regulatory level. An expermental method for determnng surface transfer mpedance of coupled low frequency connectors s stll beng studed by IEC. The method chosen by ILE for verfcaton of ts system of EC enclosures and accessores s the lne njecton method based on German mltary standards VG and VG R 1 njecton wre mesh 1 U 1 R g 1 Network analyzer (NWA) Network analyzer (NWA) R U 2 mesh 2 R 2 2 nner conductor Legend: R g = output mpedance of the sgnal generator (NWA port1) R 1 = termnaton resstance of the generator crcut (mesh 1) R = nput mpedance of the measurng nstrument (NWA port 2) R 2 = termnaton resstance of the generator crcut (mesh 2) A sgnal wth a frequency of 0.1 Hz and 1000 Hz generated by port 1 of the measurng devce (network analyzer wth 75 Ω output mpedance) crculates n mesh 1 consstng of an nsulated conductor (njecton wre) restng on the surface of two coupled enclosures (sheld), termnatng on a calbrated (and shelded) resstance of 75 Ω. As a result of the current 1 njected n mesh 1, an nduced voltage U 2 s generated n mesh 2, consstng of an nner pck-up conductor connected to two contacts at the center of the connector nserts, termnated on another calbrated resstance of 75 Ω (shelded), n turn earthed on the coupled enclosures whch act as a sheld. The voltage s measured on port 2 of the measurng devce for S parameters (scatterng parameters). The network analyzer sees the devce under test as a flter and calculates the measurement provdng a graph llustratng the sheldng attenuaton (measured n db) as a functon of frequency n Hz. 384

7 ULTIPOLE CONNECTORS EC CN EC Connectors and electromagnetc compatblty The tests were performed on: The results are summarzed n the dagrams below. - coupled standard enclosures - coupled EC enclosures Standard enclosure dagram. -20 S21 log AG 10 db/ ref -10 db 1_: db 300 khz db _: db 1 Hz 3_: db 10 Hz 4_: db 100 Hz EC - overvew ,1 Hz 1 Hz 10 Hz 100 Hz 1 GHz EC enclosure dagram. -20 S21 log AG 10 db/ ref -10 db 1_: db 300 khz _: db 1 Hz db _: db 10 Hz _: db 100 Hz ,1 Hz 1 Hz 10 Hz 100 Hz 1 GHz 385

8 ULTIPOLE CONNECTORS EC CN EC Connectors and electromagnetc compatblty To hghlght the nfluence of the cable gland the sheldng attenuaton measurements were repeated on: - coupled standard enclosures wth standard cable gland and cable sheld earthed to the earth termnal of the connector see curve A - coupled standard enclosures wth EC cable gland and cable sheld earthed to the cable gland see curve B - coupled EC enclosures wth EC cable gland and cable sheld earthed to the cable gland see curve C The results are summarzed n the dagrams below. EC - overvew S21 log AG 10 db/ ref -10 db -40 db curve A curve B curve C ,1 Hz 1 Hz 10 Hz 100 Hz 1 GHz Conclusons The measurements suggest the followng consderatons: - standard enclosures already provde good levels of sheldng attenuaton; - when used wth EC cable glands, standard enclosures clearly ncrease ther sheldng attenuaton; - EC enclosures, wth better sheldng attenuaton values, provde further mprovements. 386

9 CK - CKA and KA enclosures sze EC verson CK... 3 poles + m 48 CK... 4 poles + m 48 CKS... 3 poles + m 49 CKS... 4 poles + m 49 CD... 8 poles 54 CQ poles + m 165 CQ... 5 poles + m 166 bulkhead mountng housngs straght and angled hoods nsert dmensons: 21 x 21 mm descrpton part No. part No. part No. part No. (entry - 11) (entry - 20) (entry - 11) (entry - 20) wth stanless steel lever CKAXS 03 I wthout cable entry, stanless steel lever CKAXS 03 IA wth cable entry, stanless steel lever CKAXS 03 IAP KAXS IAP20 wth cable entry, stanless steel lever, bulkhead hole closed CKAXS 03 AP KAXS AP20 wth pegs, top entry CKAS 03 V KAS V20 wth pegs, sde entry CKAS 03 VA KAS VA20 wth stanless steel lever, top entry CKAXS 03 VG KAXS VG20 gasket and screw kt for IP66/IP67 1) for CK, CQ 05, CKS nserts CKR 65 CKR 65 gasket and screw kt for IP66/IP67 1) for CD 08 nserts CKR 65 D CKR 65 D 1) To obtan the protecton ratng IP66/IP67 a kt s provded that ncludes a gasket to ft under the nsert fxng screws suppled wth the kt (see llustratve example). CQ 12 nserts are already suppled wth a gasket and screw whch ensure IP66/IP67 protecton ratng. CKAXS I CKAS V and KAS V 11 or 20 EC - sze , Ø 3,3 33,5 28 CKAXS IA CKAS VA and KAS VA 42,5 11 or 20 panel cut-out for bulkhead mountng housngs n mm ø 3, ,5 30 Ø 3,3 33,5 26, CKAXS IAP (CKAXS AP) and KAXS IAP (KAXS AP) CKAXS VG and KAXS VG 42,5 (40) 11 or (43,5) 57 Type 12 Type 4/4X only wth CKR 65 (D) 10 (11) 47 (46) 30 Ø 3,3 11 or 20 40,5 IP44 IE C IP66/IP67 wth CKR 65 (D) 1) 387

10 CQ enclosures sze EC verson CQ poles + m 167 CQ 04/ poles + 2 poles + m 168 bulkhead mountng housng wth sngle lever hoods wth 2 pegs - metallc nsulatng enclosures descrpton part No. entry part No. entry EC - sze wth lever CQS 08 I wthout cable entry, angled, wth lever CQS 08 IA wth cable entry, angled, wth lever CQS 08 IAP 21 wth pegs, sde entry * CQS 08 VA 16 wth pegs, top entry * CQS 08 V 21 * male thread on enclosure exteror panel cut-out for CQS I enclosure, n mm CQS I CQS VA , ,5 3,2 32,2 18, , ,7 35 panel cut-out for CQS IA - CQS IAP enclosure, n mm CQS IA CQS V 38 4, ,8 37, ,4 23 3, ,5 54, ,2 Note: when usng seres CQS 08 enclosures, replace the gasket provded wth male nserts wth the conductve gasket CR 08 EC CQS IAP 30 34, , ,8 37,25 Type 12 39,5 54,5 30 IP66 IP67 IEC , ,5 388

11 CQ enclosures sze EC verson CQ poles + m 167 CQ 04/ poles + 2 poles + m 168 hoods wth sngle lever conductve gasket for CQ male nserts thermoplastc resn cable glands - metallc nsulatng enclosures descrpton part No. entry part No. wth lever, top entry * CQS 08 VG 21 conductve gasket for CQ male nserts CQS VG CR 08 EC cable gland head and gasket for CQS 08 VA enclosure CRQ 16 cable gland head and gasket for CQS 08 V, VG and IAP CRQ 21 enclosure * male thread on enclosure exteror cable dameters for cable glands: - CRQ 16: mm (4-7 mm on request) - CRQ 21: mm (7-10 mm on request) 46 18,5 21 CR 08 EC 45,2 EC - sze place the cable sheld mesh between the CRQ cable gland gasket and the seat of the gasket tself. SHIELD ESH 15 50, CRQ 16 and CRQ 21 Note: when usng seres CQS 08 enclosures, replace the gasket provded wth male nserts wth the conductve gasket CR 08 EC. Type 12 IP66 IP67 IEC part No. A B C D E Ø Ch CRQ 16 15,5 21,5 20,25 13,5 6, CRQ 21 18,2 27, ,5 9 26,

12 CZ - Z and CZA - ZA enclosures sze EC verson CD poles + m 55 CSAH poles + m 87 CDA poles + m 98 CDC poles + m 99 IXO... 1 module housngs and cover hoods and cover nsert centre dstance: 49 x 16 mm The covers for L and LG versons cannot be used together wth codng pns. If ths applcaton s requred, please contact ILE SpA. descrpton part No. entry part No. entry part No. entry part No. entry EC - sze bulkhead mountng housng wth lever CZIS 15 L - surface mountng housng wth lever CZPS 15 L2 16 x 2 ZPS 15 L x 2 cover wth pegs (for 1 lever enclosures) 1) enclosure wth pegs, sde entry CZOS 15 L 16 ZOS 15 L20 20 enclosure wth pegs, sde entry ZOS 15 L25 25 enclosure wth pegs, sde entry, hgh, wthout adaptor * CZFOS 15 L21 21 ZFOS 15 L25 25 enclosure wth pegs, top entry CZVS 15 L 13.5 ZVS 15 L20 20 enclosure wth pegs, top entry, hgh, wthout adaptor * CZFVS 15 L21 21 ZFVS 15 L25 25 cover wth lever (for enclosures wth pegs) 2) * enclosure wthout adaptor, threaded on the enclosure body, to be used only wth a complete cable gland. panel cut-out for bulkhead mountng housng n mm ø 3,4 CZCS 15 L CZIS L 53 CZCS 15 LG CZOS L and ZOS L / 27 54, , ,4 CZPS L and ZPS L CZFOS L - ZFOS L and CZFVS L - ZFVS L 62 17,5 / ,5 1) eyelet 2) loop Ø 4, CZVS L and ZVS L 62 Type 4/4X/12 CZCS L 63 CZCS LG 29,4 IP66 IE C ,5 54,5 29,4 15, ,

13 CZ - Z and CZA - ZA enclosures sze EC verson CD poles + m 56 CDD poles + m 68 CSAH poles + m 88 CDA poles + m 100 CDC poles + m 101 housngs and cover hoods and cover nsert centre dstance: 66 x 16 mm The covers for L and LG versons cannot be used together wth codng pns. If ths applcaton s requred, please contact ILE SpA. descrpton part No. entry part No. entry part No. entry part No. entry bulkhead mountng housng wth lever CZIS 25 L - surface mountng housng wth lever, hgh constructon CZAPS 25 L2 16 x 2 ZAPS 25L x 2 cover wth pegs (for 1 lever enclosures) 1) enclosure wth pegs, sde entry CZOS 25 L 16 ZOS 25 L20 20 enclosure wth pegs, sde entry ZOS 25 L25 25 enclosure wth pegs, sde entry, hgh, wthout adaptor * CZFOS 25 L21 21 ZFOS 25 L25 25 enclosure wth pegs, top entry CZVS 25 L 16 ZVS 25 L20 ** 20 enclosure wth pegs, top entry, wthout adaptor * CZFVS 25 L21 21 ZFVS 25 L25 25 cover wth lever (for enclosures wth pegs) 2) * enclosure wthout adaptor, threaded on the enclosure body, to be used only wth a complete cable gland. panel cut-out for bulkhead mountng housng n mm ø 3,4 CZCS 25 L CZIS L 53 CZCS 25 LG CZOS L and ZOS LL / EC - sze , , CZAPS L and ZAPS L 79,5 29,4 CZFOS L - ZFOS L and CZFVS L - ZFVS L 62 / 17, ,5 1) eyelet 2) loop Ø 4, ,5 36 CZVS L and ZVS L / 64,5 Type 4/4X/12 CZCS L 79,5 29,4 ** can only be used wth a complete cable gland (to be purchased separately) CZCS LG IP66 IE C ,5 92,5 54,5 29,4 79,5 29,

14 CH - CA and A enclosures sze EC verson CDD poles + m 67 CDS... 9 poles + m 78 CSH... 6 poles + m 91 CNE, CSE... 6 poles + m 104 CCE... 6 poles + m 110 CSS... 6 poles + m 122 CT, CTSE (16A) *)... 6 poles + m 130 CQE poles + m 138 IXO... 2 modules housngs and cover hoods and cover *) only for enclosure CHIS 06 L nsert centre dstance: 44 x 27 mm descrpton part No. entry part No. entry part No. entry part No. entry EC - sze bulkhead mountng housng wth lever CHIS 06 L - surface mountng housng wth lever, hgh constructon CAPS 06 L 21 APS 06 L32 32 cover wth pegs (for 1 lever enclosures) 1) CHCS 06 L enclosure wth pegs, sde entry, hgh, wthout adaptor * CFOS 06 L21 21 FOS 06 L32 32 enclosure wth pegs, top entry, hgh, wthout adaptor * CFVS 06 L21 21 FVS 06 L32 32 cover wth lever (for enclosures wth pegs) 2) * enclosure wthout adaptor, threaded on the enclosure body, to be used only wth a complete cable gland. panel cut-out for bulkhead mountng housng n mm ø 4,5 CHIS L 76,5 29 CHCS 06 LG CFOS L and FOS L / ,5 45, CAPS L and APS L CFVS L and FVS L / Ø 5, ) eyelet 2) loop CHCS L CHCS LG ,5 17, Type 4/4X/12 IP66 IE C

15 CH - CA and A enclosures sze EC verson CDD poles + m 69 CDS poles + m 79 CSH poles + m 92 CNE, CSE poles + m 105 CCE poles + m 111 CSS poles + m 123 CT, CTSE (16A) *).. 10 poles + m 131 CQE poles + m 139 CCE (aux) poles + m 148 CSH (aux) poles + m 149 CX... 8/24 poles + m 169 IXO... 3 modules *) only for enclosure CHIS 10 housngs and cover hoods and cover nsert centre dstance: 57 x 27 mm descrpton part No. entry part No. entry part No. entry part No. entry bulkhead mountng housng, wth levers CHIS 10 - surface mountng housng, wth levers, hgh constructon CAPS APS cover wth 4 pegs (for enclosures wth 2 levers) 1) CHCS 10 enclosure wth pegs, sde entry, hgh constructon CAOS AOS enclosure wth pegs, top entry, hgh constructon CAVS AVS cover wth 2 levers (for enclosures wth 4 pegs) 2) CHIS CHCS 10 G panel cut-out for bulkhead mountng housngs n mm ø 4, CAOS and AOS / 70 EC - sze ,5 45, CAPS and APS CAVS and AVS / Ø 5, ) eyelet 2) loop 82 93, CHCS CHCS G ,5 17, Type 4/4X/12 IP66 IE C

16 CH - CA and H - A enclosures sze EC verson CD poles + m 57 CT, CTS (10A) *) poles + m 64 CDD poles + m 70 CDS poles + m 80 CSH poles + m 93 CNE, CSE poles + m 106 CCE poles + m 112 CSS poles + m 124 CT, CTSE (16A) *).. 16 poles + m 132 CQE poles + m 140 CQEE poles + m 146 CCE (aux) poles + m 150 CE, CSH (aux) poles + m 151 CP... 6 poles + m 162 CX... 6/36 and 12/2 poles + m CX... 4/0 and 4/2 poles + m 172 IXO... 4 modules *) only for enclosure CHIS 16 nsert centre dstance: 77,5 x 27 mm housngs and cover hoods and cover descrpton part No. entry part No. entry part No. entry part No. entry bulkhead mountng housng wth levers CHIS 16 - surface mountng housng, wth levers, hgh constructon CAPS APS cover wth 4 pegs (for enclosures wth 2 levers) 1) CHCS 16 EC - sze enclosure wth pegs, sde entry CHOS HOS enclosure wth pegs, sde entry HOS enclosure wth pegs, sde entry, hgh constructon CAOS AOS enclosure wth pegs, sde entry, hgh constructon AOS enclosure wth pegs, top entry CHVS HVS enclosure wth pegs, top entry HVS enclosure wth pegs, top entry, hgh constructon CAVS AVS enclosure wth pegs, top entry, hgh constructon AVS cover wth 2 levers (for enclosures wth 4 pegs) 2) CHCS 16 G panel cut-out for bulkhead mountng housngs n mm ø 4,5 CHIS CHOS (CAOS) and HOS (AOS) / (76) 115,5 45,5 6 93,5 43 CAPS and APS CHVS (CAVS) and HVS (AVS) / Ø 5, (91) 1) eyelet 2) loop ,5 43 CHCS CHCS G 93,5 43 Type 4/4X/12 93, , ,5 IP66 IE C

17 CH - CA and H - A enclosures sze EC verson CD poles + m 59 CT, CTS (10A) *) poles + m 65 CDD poles + m 72 CDS poles + m 81 CSH poles + m 94 CNE, CSE poles + m 107 CCE poles + m 113 CSS poles + m 125 CT, CTSE (16A) *) 24 poles + m 133 CQE poles + m 141 CQEE poles + m 147 CCE (aux) poles + m 152 CSH (aux) poles + m 153 CX... 4/8 and 6/6 poles + m 173 and 175 IXO... 6 modules *) only for enclosure CHIS 24 housngs and cover hoods and cover nsert centre dstance: 104 x 27 mm descrpton part No. entry part No. entry part No. entry part No. entry bulkhead mountng housng wth levers CHIS 24 - surface mountng housng wth levers, hgh constructon CAPS APS cover wth 4 pegs (for enclosures wth 2 levers) 1) CHCS 24 enclosure wth pegs, sde entry CHOS HOS enclosure wth pegs, sde entry HOS enclosure wth pegs, sde entry, hgh constructon CAOS AOS enclosure wth pegs, sde entry, hgh constructon AOS enclosure wth pegs, top entry CHVS HVS enclosure wth pegs, top entry HVS enclosure wth pegs, top entry, hgh constructon CAVS AVS enclosure wth pegs, top entry, hgh constructon AVS cover wth 2 levers (for enclosures wth 4 pegs) 2) CHCS 24 G panel cut-out for bulkhead mountng housngs n mm EC - sze ø 4,5 CHIS CHOS (CAOS) and HOS (AOS) 179, / 63 (76) ,5 45, CAPS and APS CHVS (CAVS) and HVS (AVS) 179, / Ø 5, (91) 1) eyelet 2) loop CHCS CHCS G Type 4/4X/ ,5 179, ,5 IP66 IE C