{"id":8921,"date":"2026-11-11T15:53:23","date_gmt":"2026-11-11T07:53:23","guid":{"rendered":"https:\/\/www.qishan-sh.com\/?post_type=product&#038;p=8921"},"modified":"2026-11-11T15:53:23","modified_gmt":"2026-11-11T07:53:23","slug":"hd7500","status":"publish","type":"product","link":"https:\/\/www.qishan-sh.com\/en\/product\/hd7500\/","title":{"rendered":"HD7500 Series Isolated Surge-Protective Safety Barrier"},"content":{"rendered":"<p>The HD7500 series isolated surge-protective safety barrier combines two key features: signal surge protection and intrinsically safe explosion protection. It consists of a surge protection module (S-24-D3 Pro, inserted into the signal module in modular form) and an isolated safety barrier function module, and is used plugged into a backplane (HD75-16IO \/ HD75-16TY) that can accommodate up to 16 modules. The product is only permitted for use in Zone 2 hazardous areas.<\/p>\n<p>The signal surge protection rating reaches a nominal discharge current of 10kA (8\/20\u03bcs), with a voltage protection level of less than 600V (L-G); the signal module provides the isolated safety barrier function, with three-terminal isolation between the intrinsically safe side, the non-intrinsically safe side and the power supply side, effectively shielding interference. Through optical, electrical and magnetic isolation technologies, the product isolates the supply power, input signals and output signals from one another, achieving isolated transmission of digital\/analogue signals between field intrinsically safe devices and control room equipment.<\/p>","protected":false},"excerpt":{"rendered":"<p>Combines an isolated safety barrier and signal surge protection; nominal discharge current 10 kA; three-way isolation between input\/output\/power supply; suitable for Zone 2 locations.<\/p>","protected":false},"featured_media":8920,"template":"","meta":{"iifk_footer_enabled":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product-category":[26,14],"industry":[46,45,68],"brand":[1913],"class_list":["post-8921","product","type-product","status-publish","has-post-thumbnail","hentry","product-category-signal-conditioning","product-category-isolated-safety-barrier","industry-power","industry-petrochemical","industry-process-automation","brand-supcon"],"_links":{"self":[{"href":"https:\/\/www.qishan-sh.com\/en\/wp-json\/wp\/v2\/product\/8921","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qishan-sh.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.qishan-sh.com\/en\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":1,"href":"https:\/\/www.qishan-sh.com\/en\/wp-json\/wp\/v2\/product\/8921\/revisions"}],"predecessor-version":[{"id":8922,"href":"https:\/\/www.qishan-sh.com\/en\/wp-json\/wp\/v2\/product\/8921\/revisions\/8922"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.qishan-sh.com\/en\/wp-json\/wp\/v2\/media\/8920"}],"wp:attachment":[{"href":"https:\/\/www.qishan-sh.com\/en\/wp-json\/wp\/v2\/media?parent=8921"}],"wp:term":[{"taxonomy":"product-category","embeddable":true,"href":"https:\/\/www.qishan-sh.com\/en\/wp-json\/wp\/v2\/product-category?post=8921"},{"taxonomy":"industry","embeddable":true,"href":"https:\/\/www.qishan-sh.com\/en\/wp-json\/wp\/v2\/industry?post=8921"},{"taxonomy":"brand","embeddable":true,"href":"https:\/\/www.qishan-sh.com\/en\/wp-json\/wp\/v2\/brand?post=8921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}