For safer fuse installation and operation, consider using a Traveller 12-Gauge Glass In-Line 30A Fuse Holder. Boasting heavy-duty construction, this glass fuse holder helps shield fuses from wear and tear. Its (2) 4 in. wire leads of 12-gauge wire allow for optimal durability and reach during install. Ideal for air conditioners, electronics and many other applications, this in-line fuse holder offers ideal power compatibility. Use it with SFE, AGA, AGC, AGW and AGX Series 30A glass fuses as needed. Satisfaction guaranteed.