{"product_id":"zebra-instruments-3-amp-blade-type-automotive-control-fuses-25-pack","title":"Zebra Instruments – 3 Amp Blade Type Automotive Control Fuses (25 Pack)","description":"\u003ch1 data-pm-slice=\"1 3 []\"\u003eZebra Instruments – 3 Amp Blade Type Automotive Control Fuses (25 Pack)\u003c\/h1\u003e\n\u003cp data-pm-slice=\"1 3 []\"\u003eThis \u003cstrong\u003e25-pack of Zebra Instruments 3-Amp fuses\u003c\/strong\u003e provides a bulk supply of essential protection for modern HVAC control boards and low-voltage circuits. These automotive-style (ATO\/ATC) blade fuses are the industry standard for safeguarding 24V transformers and integrated furnace controllers (IFC) against overcurrent caused by short circuits. By acting as a sacrificial link, these fuses prevent expensive damage to the system's primary control board or transformer when an electrical fault occurs.\u003c\/p\u003e\n\u003cp\u003ePrecision-engineered for the HVAC trade, these fuses are designed to \"blow\" instantly upon reaching a 3-amp load, protecting delicate microprocessor-based components. The \u003cstrong\u003ebulk 25-piece pack\u003c\/strong\u003e is a staple for service technicians, ensuring you always have a replacement on hand during the diagnostic process. Each fuse features a transparent housing for quick visual troubleshooting, allowing you to see if the internal element has melted without needing a multimeter for every check.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features and Function:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Value Protection:\u003c\/strong\u003e Specifically rated at 3 Amps to match the safety requirements of most standard residential furnace and air handler control boards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFast-Acting Response:\u003c\/strong\u003e Engineered to trip immediately, shielding expensive system components from the heat generated by a low-voltage short.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eClear Diagnostic Window:\u003c\/strong\u003e The transparent plastic body allows for instant confirmation of a blown fuse during high-speed troubleshooting.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndustry Standard Fit:\u003c\/strong\u003e Universal ATO\/ATC blade design ensures compatibility with nearly every major HVAC equipment brand.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eProduct Details and Key Specifications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Zebra Instruments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePart Type:\u003c\/strong\u003e Blade Type Automotive Fuse (ATO\/ATC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eQuantity:\u003c\/strong\u003e 25-Pack (Bulk Contractor Bag)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eAmperage:\u003c\/strong\u003e 3 Amp\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVoltage Rating:\u003c\/strong\u003e Up to 32V (Ideal for 24VAC control systems)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eColor-Code:\u003c\/strong\u003e Violet \/ Purple (Industry Standard for 3A)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eTerminals:\u003c\/strong\u003e Zinc Alloy Blade\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e🛠️ HVAC Depot Pro Tip: The \"Purple\" Rule\u003c\/strong\u003e The 3-amp fuse is the standard for many boards, yet it is often replaced by mistake with a 5-amp (Tan) fuse. Never \"up-size\" the fuse to stop it from blowing. If a 3-amp fuse continues to pop, check the contactor coil for a short or look for a thermostat wire that has rubbed against the copper suction line. Using a higher-rated fuse can allow enough current to flow to melt the traces on your control board before the fuse actually blows.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCross-Reference \u0026amp; Compatibility:\u003c\/strong\u003e These 3-Amp fuses are direct replacements for the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLittelfuse:\u003c\/strong\u003e 257003\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBussmann:\u003c\/strong\u003e ATC-3\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eEquipment Brands:\u003c\/strong\u003e Carrier, Bryant, Payne, Trane, American Standard, Lennox, Goodman, and Rheem\/Ruud.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eExtensive Model Compatibility List:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal Application:\u003c\/strong\u003e Fits any HVAC control board, zone controller, or low-voltage transformer circuit utilizing standard automotive blade fuses.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zebra","offers":[{"title":"Default Title","offer_id":52451527197035,"sku":"768467300230","price":26.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0922\/9683\/9531\/files\/ZEBRAFuses_3Amp_BladeType_Automotive_25Pack.png?v=1768671863","url":"https:\/\/tophvacparts.com\/products\/zebra-instruments-3-amp-blade-type-automotive-control-fuses-25-pack","provider":"HVAC Parts and Equipment Depot Open To Homeowners and Contractors","version":"1.0","type":"link"}