Yes, with caution and the right knowledge, you can replace a blown fuse within a breaker box. . Your circuit breakers or fuses are helping to protect your electrical system from damage. Fuse:. . The electrical service panel, often called a breaker box or a fuse box, functions as the central control point for all the wiring in a home. You'll also learn when it's time to call in a professional. Here, you'll discover how to identify, repair, and prevent blown fuses, ensuring your. . A blown fuse can happen due to overloaded circuits, faulty appliances, or short circuits.