WEIDMUELLER Hlavní katalog řadových svorek (EN)

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Všechny kapitoly z nejnovějšího katalogu řadových svorek a SAK Weidmüller ...

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0-6.2 WDU 3.5 WDU 3. In contrast copper, aluminium exhibits certain characteristics that must taken into account when using this material conductor in electrical engineering.5 2.0-2.2-1.4 SAK 105 4. 4. 3.5 2.0-30. 2.0-6.5 2. Fixing screw Current bar 1 3 2 4 5Al side Al conductor Cu-plated washer 1 2 3 It necessary fit copper-plated aluminium washer between the aluminium cable lug and the copper current bar the modular terminal.Installation instructions The use aluminium conductors Weidmüller terminal blocks are suitable for the direct connection single strand round and sector-shaped aluminium wires. Solid round and sector conductors Terminal type Rated cross-section Reduced rated current when connecting an aluminium conductor Clamping screw thread size Tightening torque W-Series mm2 „A“ Nm WDU 2.0-60.5-31. When connecting stranded aluminium conductors modular terminals, advisable use an aluminium cable lug chosen match the type conductor and connected according the instructions the cable lug manufacturer.0 WDU 120 150 290 15. And that, in unfavourable conditions, can lead to poor contact. This layer increases the contact resistance between the aluminium conductor and the current bar of the modular terminal.0-20.0 WFF 185 185 300 15.8 WDU 1. 1.0-2.0-12.5 2.6-1.0 WFF 300 300 409 30.4 WDU 0.8 SAK 0.0 SAK-Series SAK 2. Caution: not use brushes, files or emery paper because particles of aluminium can deposited on other conductors.0 WDU 4.0 Al cable lug Cu side 4 5 W Technicalappendix W. After removing the layer oxide, coat the end the conductor immediately with neutral grease, e.4 SAK 2.0 Stranded conductors W-Series WFF 105 3.251282250000 2012/2013 .5 1.0 WDU 240 240 415 25. A thin, non-conductive layer oxide forms immediately the unprotected surface the aluminium soon it is exposed the air.g.5-0. acid- and alkalifree Vaseline, and connect the terminal immediately.0 SAK 3. Installation advice when using flat cable lugs When tightening the terminal is advisable hold the conductor to prevent deformation the terminal rail and avoid twisting the foot the terminal.5 0. with a knife, remove the layer oxide. Repeat the above procedure any time the conductor disconnected and reconnected.0 WFF 120 120 230 10. Scrape the stripped end the conductor carefully, eg. The above installation instructions are valid for solid round sector aluminium conductors only.5 0. This the only way guaranteeing a reliable transition between the copper and the aluminium.5 0. Fit the washer in such way that the copper side in contact with the current bar, and the aluminium side contact with the cable lug.6 SAK 2.0 WFF 163 6