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About This Item
Full Description
This part of IEC 60947 specifies requirements for terminal blocks with screw-type or screw- less-type clamping units primarily intended for industrial or similar use and to be fixed to a support to provide electrical and mechanical connection between copper conductors. It applies to terminal blocks intended to connect round copper conductors, with or without special preparation, having a cross-section between 0,05 mm2/30 AWG and 300 mm2/600 kcmil, intended to be used in circuits of a rated voltage not exceeding 1 000 V AC up to 1 000 Hz or 1 500 V DC. The tests on terminal blocks are made with AC or DC supply as required in relevant clauses of this document. Terminal blocks are electrical components, which are typically installed in enclosures according to IEC 60947-1:2020 clause 3.3.16 enclosure: part providing a specified degree of protection of equipment against certain external influences and a specified degree of protection against approach to or contact with hazardous live parts and hazardous mechanical part. For this kind of components IEC Guide 116 states that there are "however, other electrical components that are intended to be incorporated into other electrical equipment".