{"product_id":"harwil-s-27-relay-controller","title":"Harwil S-27 Intrinsically Safe Solid State Hazardous Area Relay","description":"\n\u003cstyle\u003e\n  .hs27-wrap, .hs27-wrap * { box-sizing: border-box; }\n  .hs27-wrap {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #1a1a1a;\n    line-height: 1.55;\n  }\n\n  \/* Header *\/\n  .hs27-header {\n    border-left: 5px solid #00a8e0;\n    padding: 4px 0 4px 16px;\n    margin-bottom: 20px;\n  }\n  .hs27-header h2 {\n    margin: 0;\n    color: #003a70;\n    font-size: 1.55em;\n    font-weight: 700;\n    letter-spacing: -0.01em;\n  }\n  .hs27-subtitle {\n    margin: 4px 0 0;\n    color: #666;\n    font-size: 0.95em;\n  }\n\n  \/* Intro *\/\n  .hs27-intro {\n    margin: 0 0 24px;\n    color: #333;\n    font-size: 0.98em;\n  }\n\n  \/* Section heading *\/\n  .hs27-section { margin-bottom: 28px; }\n  .hs27-section-heading {\n    background: #003a70;\n    color: #fff;\n    font-size: 0.85em;\n    font-weight: 700;\n    letter-spacing: 0.08em;\n    text-transform: uppercase;\n    padding: 6px 12px;\n    margin: 0 0 0;\n    border-radius: 4px 4px 0 0;\n  }\n\n  \/* Spec table *\/\n  .hs27-spec-table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.93em;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    overflow: hidden;\n  }\n  .hs27-spec-table tr { border-bottom: 1px solid #eef1f6; }\n  .hs27-spec-table tr:nth-child(even) { background: #fafbfd; }\n  .hs27-spec-table tr:last-child { border-bottom: none; }\n  .hs27-spec-table th,\n  .hs27-spec-table td {\n    text-align: left;\n    padding: 8px 14px;\n    vertical-align: top;\n  }\n  .hs27-spec-table th {\n    font-weight: 600;\n    color: #4a4a4a;\n    width: 38%;\n  }\n  .hs27-spec-table td {\n    color: #1a1a1a;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.92em;\n  }\n\n  \/* Compatibility list *\/\n  .hs27-compat-list {\n    margin: 0;\n    padding: 14px 16px 14px 32px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    list-style: square;\n    color: #1a1a1a;\n    font-size: 0.95em;\n  }\n  .hs27-compat-list li { padding: 2px 0; }\n  .hs27-compat-list li::marker { color: #00a8e0; }\n\n  \/* Cross-reference chip list *\/\n  .hs27-chips {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px;\n  }\n  .hs27-chip {\n    background: #f0f3f8;\n    border: 1px solid #d8dde6;\n    color: #003a70;\n    padding: 5px 12px;\n    border-radius: 4px;\n    font-family: ui-monospace, \"SF Mono\", Menlo, Consolas, monospace;\n    font-size: 0.88em;\n    font-weight: 600;\n  }\n\n  \/* Notes \/ FAQ *\/\n  .hs27-notes {\n    padding: 14px;\n    background: #fff;\n    border: 1px solid #d8dde6;\n    border-top: none;\n    border-radius: 0 0 4px 4px;\n  }\n  .hs27-note-item { padding: 8px 0; border-bottom: 1px solid #eef1f6; }\n  .hs27-note-item:last-child { border-bottom: none; }\n  .hs27-note-q { font-weight: 600; color: #003a70; margin: 0 0 3px; font-size: 0.95em; }\n  .hs27-note-a { margin: 0; color: #333; font-size: 0.93em; }\n\n  \/* Footer *\/\n  .hs27-footer {\n    border-top: 1px solid #d8dde6;\n    padding-top: 12px;\n    margin-top: 24px;\n    text-align: center;\n    color: #555;\n    font-size: 0.88em;\n  }\n  .hs27-footer .hs27-dot {\n    color: #00a8e0;\n    margin: 0 8px;\n    font-weight: 700;\n  }\n\u003c\/style\u003e\n\n\u003cdiv class=\"hs27-wrap\"\u003e\n\n  \u003cheader class=\"hs27-header\"\u003e\n    \u003ch2\u003eHarwil Series 27 Intrinsically Safe Relay\u003c\/h2\u003e\n    \u003cp class=\"hs27-subtitle\"\u003eStandard switches, hazardous areas.\u003c\/p\u003e\n  \u003c\/header\u003e\n\n  \u003cp class=\"hs27-intro\"\u003eThe \u003cstrong\u003eHarwil Series 27\u003c\/strong\u003e is an intrinsically safe solid state hazardous area relay that allows standard, off the shelf switches to be used in hazardous areas. Solid state technology replaces expensive explosion proof enclosures.\u003c\/p\u003e\n\n  \n    \n    \u003csection class=\"hs27-section\"\u003e\n      \u003cdiv class=\"hs27-section-heading\"\u003eFunction\u003c\/div\u003e\n      \u003ctable class=\"hs27-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eType\u003c\/th\u003e\n\u003ctd\u003eIntrinsically safe solid state hazardous area relay\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePurpose\u003c\/th\u003e\n\u003ctd\u003eAllows use of standard off the shelf switches in hazardous areas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eTechnology\u003c\/th\u003e\n\u003ctd\u003eSolid state, eliminates explosion proof enclosures\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n    \u003csection class=\"hs27-section\"\u003e\n      \u003cdiv class=\"hs27-section-heading\"\u003eElectrical\u003c\/div\u003e\n      \u003ctable class=\"hs27-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eInput Power Options\u003c\/th\u003e\n\u003ctd\u003e115\/120 VAC 50\/60 Hz, 220\/240 VAC 50\/60 Hz, 24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n    \u003csection class=\"hs27-section\"\u003e\n      \u003cdiv class=\"hs27-section-heading\"\u003eBenefits\u003c\/div\u003e\n      \u003ctable class=\"hs27-spec-table\"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n\u003cth\u003eInstallation\u003c\/th\u003e\n\u003ctd\u003eFast, simple and inexpensive versus explosion proof housings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eReliability\u003c\/th\u003e\n\u003ctd\u003eIncreased by eliminating sealed joints and special housings\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/section\u003e\n    \n  \n\n  \n  \u003csection class=\"hs27-section\"\u003e\n    \u003cdiv class=\"hs27-section-heading\"\u003eCompatibility\u003c\/div\u003e\n    \u003cul class=\"hs27-compat-list\"\u003e\n      \u003cli\u003eHazardous location installations\u003c\/li\u003e\n\u003cli\u003eHarwil Q-1 and Q-4E flow switches\u003c\/li\u003e\n\u003cli\u003eStandard off the shelf switches\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hs27-section\"\u003e\n    \u003cdiv class=\"hs27-section-heading\"\u003eCross-References\u003c\/div\u003e\n    \u003cdiv class=\"hs27-chips\"\u003e\n      \u003cspan class=\"hs27-chip\"\u003eS27\/A\/1\/D\/0\u003c\/span\u003e\u003cspan class=\"hs27-chip\"\u003eS27\/A\/2\/D\/0\u003c\/span\u003e\u003cspan class=\"hs27-chip\"\u003eS17\/A\/3\/C\/0\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \n  \u003csection class=\"hs27-section\"\u003e\n    \u003cdiv class=\"hs27-section-heading\"\u003eNotes\u003c\/div\u003e\n    \u003cdiv class=\"hs27-notes\"\u003e\n      \n      \u003cdiv class=\"hs27-note-item\"\u003e\n        \u003cp class=\"hs27-note-q\"\u003eWhat does intrinsically safe mean?\u003c\/p\u003e\n        \u003cp class=\"hs27-note-a\"\u003eIntrinsically safe equipment and wiring is incapable of releasing enough thermoelectric energy to ignite a hazardous atmospheric mixture of gases, vapors or dusts.\u003c\/p\u003e\n      \u003c\/div\u003e\n      \n    \u003c\/div\u003e\n  \u003c\/section\u003e\n  \n\n  \u003cfooter class=\"hs27-footer\"\u003e\n    Genuine Harwil\u003cspan class=\"hs27-dot\"\u003e•\u003c\/span\u003eFactory Specifications\u003cspan class=\"hs27-dot\"\u003e•\u003c\/span\u003eFast Shipping\u003cspan class=\"hs27-dot\"\u003e•\u003c\/span\u003eExpert Support\n  \u003c\/footer\u003e\n\n\u003c\/div\u003e\n","brand":"Harwil Corporation","offers":[{"title":"220\/240 VAC 50\/60 HZ Input Power","offer_id":55882735878466,"sku":"PFS-S27\/A\/2\/D\/0","price":265.7,"currency_code":"USD","in_stock":true},{"title":"115\/120 VAC 50\/60 HZ Input Power","offer_id":55882735911234,"sku":"PFS-S27\/A\/1\/D\/0","price":260.7,"currency_code":"USD","in_stock":true},{"title":"24 VAC Input Power","offer_id":55882735944002,"sku":"PFS-S17\/A\/3\/C\/0","price":330.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1022\/1040\/4674\/files\/S27_5653e357-ceee-443e-9d23-57571822fc1d.png?v=1786333967","url":"https:\/\/pureflowsystems.com\/products\/harwil-s-27-relay-controller","provider":"Pure Flow Systems","version":"1.0","type":"link"}