Push Button Circuit Breaker, Low Voltage Circuit Protector 3 Amp, Fuse Tester, Product Details Automatic Tripping:Simply insert the push button circuit breaker into the fuse slot to replace a standard 3 amp fuse. In the event of an overload, the breaker will automatically trip, protecting your circuit instantly. Ideal for diagnosing low voltage shorts and troubleshooting without blowing fuses, saving you time and cost. Easy Reset:After an automatic trip, reset the breaker by pressing the button on top. This simple operation restores the circuit for normal use, ensuring minimal downtime. Wide Application:Compatible with most HVAC brands, this circuit breaker is widely used in heating and cooling equipment, household and commercial appliances, small power generators, air compressors, cars, electric vehicles, power tools, transportation, marine applications, and more. Certificate Listed:Our circuit breaker got UL, CCC, TUV certified, ensuring reliability and durability. It is suitable for use with 24V or 32V DC, making it a versatile choice for various applications where a 3 amp fuse is needed. Waterproof Design:Equipped with a waterproof cap, this circuit breaker is designed to withstand harsh environments, ensuring reliable operation in wet or humid conditions. Perfect for outdoor and marine applications, the waterproof feature enhances the durability and longevity of the breaker. PRODUCT GUARANTEE: You are able to enjoy our first-class service with full money back guarantee without reason, 3-year warranty and 24-hour support from support@zelinhol.net. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.