1.1 Scope<\/b><\/p>\n
This part of IEC 60947 specifies requirements for PCB terminal blocks primarily intended for industrial or similar use.<\/p>\n
Mounting and fixing on the printed circuit board is made by soldering, press-in or equivalent methods to provide electrical and mechanical connection between copper conductors and the printed circuit board.<\/p>\n
This standard applies to PCB terminal blocks intended to connect copper conductors, with or without special preparation, having a cross-section between 0,05 mm2<\/sup> and 300 mm2<\/sup> (AWG 30\/600 kcmil), intended to be used in circuits of a rated voltage not exceeding 1 000 V a.c. up to 1 000 Hz or 1 500 V d.c.<\/p>\n NOTE 1 Large cross section terminal blocks are dedicated to specific design of high current PCBs. The range up to 300 mm2<\/sup> is kept to cover any possible application. Examples of high current PCBs and PCB terminal blocks are shown in Annex c.<\/p>\n NOTE 2 AWG is the abbreviation of \u201cAmerican Wire Gage\u201d (Gage (US) = Gauge (UK));<\/p>\n kcmil = 1 000 cmil;<\/p>\n 1 cmil = 1 circular mil = surface of a circle having a diameter of 1 mil;<\/p>\n 1 mil = 1\/1 000 inch.<\/p>\n This standard may be used as a guide for special types of PCB terminal blocks with components, such as disconnect units, integrated cartridge fuse-links and the like.<\/p>\n<\/p>\n If applicable, in this standard the term \u201cclamping unit\u201d is used instead of \u201cterminal\u201d. This is taken into account in case of references to IEC 60947-1.<\/p>\n 1.1DV Modification by adding the following:<\/b><\/p>\n 1.1DV.1 This standard also applies to terminal blocks that have insulation piercing or displacement clamping units.<\/b><\/p>\n 1.1DV.2 The wire range for terminal blocks covered by this standard include 0,051 mm2<\/sup> to 300 mm2<\/sup> (30 AWG to 600 kcmil) copper conductors and 3,31 mm2<\/sup> to 300 mm2<\/sup> (12 AWG to 600 kcmil) aluminum conductors. See Annex dva for aluminum requirements.<\/b><\/p>\n In Mexico, 3,31 mm2<\/sup> (12 AWG), 5,26 mm2<\/sup> (10 AWG), and 8,37 mm2<\/sup> (8 AWG) aluminum conductors are not allowed.<\/b><\/p>\n 1.1DV.3 The voltage range includes up to 1500 Vac and 1500 Vdc.<\/b><\/p>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":" Low-Voltage Switchgear and Controlgear – Part 7-4: Ancillary equipment – PCB terminal blocks for copper conductors<\/b><\/p>\n\n
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\n Published By<\/td>\n Publication Date<\/td>\n Number of Pages<\/td>\n<\/tr>\n \n UL<\/b><\/a><\/td>\n 2018-04-27<\/td>\n 63<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":694536,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2680],"product_tag":[],"class_list":{"0":"post-694526","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-ul","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/694526","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/694536"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=694526"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=694526"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=694526"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}