{"product_id":"mersen-ot65-250v-k5-fuse-65-amp","title":"Mersen OT65 250V K5 Fuse 65 Amp","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MERSEN OT65 is a 250-volt, K5 class time-delay fuse rated for 65 amps. Class K5 fuses are dual-element, time-delay devices designed to carry temporary overloads — such as motor inrush current — without nuisance opening, while still providing fast response to sustained short-circuit faults. The OT65 fits standard fuse blocks and disconnects sized for 250-volt, 65-amp service. Licensed electricians and industrial maintenance technicians install this fuse in motor branch circuits, HVAC equipment, and general electrical distribution panels where K5 time-delay protection is specified.\u003c\/p\u003e\n\u003cp\u003eThe OT65 is appropriate for residential and light commercial HVAC systems, pump motors, compressors, and other motor-load branch circuits operating at or below 250 volts AC. It is commonly installed in safety switches and fusible disconnects during new construction or service replacement work. Always verify that the ampere rating and voltage rating match the equipment nameplate and the overcurrent protection requirements of the installation before installing.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e65-amp continuous current rating for medium-duty motor and equipment circuits\u003c\/li\u003e\n  \u003cli\u003e250-volt AC maximum voltage rating\u003c\/li\u003e\n  \u003cli\u003eClass K5 dual-element, time-delay design tolerates motor inrush without nuisance tripping\u003c\/li\u003e\n  \u003cli\u003eFast response to short-circuit faults protects downstream equipment and wiring\u003c\/li\u003e\n  \u003cli\u003eFits standard fuse blocks and fusible disconnect switches rated for K5 class fuses\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or serviceable spare for branch-circuit fuse holders and fusible disconnects rated for 250-volt, 65-amp Class K5 fuses.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation must be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the circuit at the upstream overcurrent device before removing or installing fuses. Confirm that the replacement fuse class, ampere rating, and voltage rating are consistent with the circuit design and equipment nameplate requirements. Do not substitute a higher-ampere or different-class fuse for the one specified by the equipment manufacturer.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmpere Rating\u003c\/strong\u003e: 65 amps\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Rating\u003c\/strong\u003e: 250 volts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuse Class\u003c\/strong\u003e: K5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType\u003c\/strong\u003e: Time-Delay (Dual-Element)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 78200170021\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: MERSEN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: OT65\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERSEN","offers":[{"title":"Default Title","offer_id":51383371366706,"sku":"OT65","price":66.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/312678798.jpg?v=1782594859","url":"https:\/\/voomisupply.com\/products\/mersen-ot65-250v-k5-fuse-65-amp","provider":"Voomi Supply","version":"1.0","type":"link"}