{"id":694160,"date":"2024-11-06T05:35:33","date_gmt":"2024-11-06T05:35:33","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/ul-489a2018\/"},"modified":"2024-11-06T05:35:33","modified_gmt":"2024-11-06T05:35:33","slug":"ul-489a2018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/ul\/ul-489a2018\/","title":{"rendered":"UL 489A:2018"},"content":{"rendered":"<p><b>1 Scope<\/b><\/p>\n<p>1.1 The requirements of this standard cover single pole or multi-pole DC rated circuit breakers intended for use as branch circuit overcurrent and short-circuit protection in communications equipment.<\/p>\n<p>1.2 All poles of multi-pole circuit breakers covered by this standard operate at the same potential.<\/p>\n<p>1.3 The requirements of this standard cover devices rated 600 volts DC or less.<\/p>\n<p>1.4 This standard is intended to be used with the Standard for Molded-Case Circuit Breakers, Molded-Case Switches and Circuit-Breaker Enclosures, UL 489, as the requirements of this standard modify tests described in that standard.<\/p>\n<p>1.5 Unless otherwise specified, when the term &#034;circuit breaker&#034; is used in this standard, it refers to a circuit breaker intended for use with communications equipment.<\/p>\n","protected":false},"excerpt":{"rendered":"<p><b>Circuit Breakers for Use in Communications Equipment<\/b><\/p>\n<table style=\"width: 100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Published By<\/td>\n<td>Publication Date<\/td>\n<td>Number of Pages<\/td>\n<\/tr>\n<tr>\n<td><a href=\"https:\/\/pdfstandards.shop\/product-category\/publishers\/ul\/\"><b>UL<\/b><\/a><\/td>\n<td>2018-07-09<\/td>\n<td>13<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":694170,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2680],"product_tag":[],"class_list":{"0":"post-694160","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\/694160","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\/694170"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=694160"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=694160"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=694160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}