The KLK series of fast-acting fuses are designed to protect control circuits, street lighting, HID lighting, computers, and other applications that do not have high inrush currents, computers, and other applications that do not have high inrush currents. These fuses also have high interrupting and current limiting capabilities. They are used to supplement main branch circuit fuses or circuit breakers to provide backup overcurrent protection. KLK fuses are non-indicating and can be used in conjunction with an indicating fuse box to determine if a fuse is blown.The KLK series of fast-acting fuses are designed to protect control circuits, street lighting, HID lighting, computers, and other applications that do not have high inrush currents, computers, and other applications that do not have high inrush currents. These fuses also have high interrupting and current limiting capabilities. They are used to supplement main branch circuit fuses or circuit breakers to provide backup overcurrent protection. KLK fuses are non-indicating and can be used in conjunction with an indicating fuse box to determine if a fuse is blown.