ATDR1 – GOULD 1A 600V CLASS CC TIME DELAY FUSE

Class CC fuses feature a rejection slot that prevents physically larger, non-current-limiting fuses from being installed in Class CC holders — a built-in safety feature. The ATDR1's Class CC rating also means it is current-limiting and UL-listed to a high interrupting rating (200kA), making it well-suited for protecting sensitive control components and motor circuits where fault current levels may be high.

Yes — the Gould ATDR1 is a direct equivalent to the Bussmann ATDR1 and Littelfuse CCMR1, as all three share the same Class CC form factor, 1A rating, 600V AC/DC voltage rating, and time delay characteristics. Always verify the replacement meets the original equipment manufacturer's specifications before installing.

Yes. The time delay feature of the ATDR series is specifically designed to ride through the motor's inrush (starting) current — typically 6–8× full-load current — without nuisance blowing, while still providing fast, current-limiting protection on genuine overloads or short circuits. At 1A, it is suited for small fractional-horsepower motors or control circuit protection. Always size fusing per the motor nameplate and the Canadian Electrical Code (CEC) Section 28 requirements.