1pc DC In Line Circuit Breaker Fuse Holder, 50A. Available 20A, 30A, 40A, 50A, 60A, 80A and 100A. the Fuse Holder is with Gauge Adaptors to Accept 4 or 8 AWG Power Cable. No Need to Keep Buying Fuses Anymore, Simply Reset Breaker and You are Ready to Go.