Basic of alarm fuses
	1.Structural of alarm fuses  The alarm contacts make when the fuse breaks, this can be used to turn on a buzzer or LED , or drive a thyristor or relay to provide an alarm indication or enable system control. When the fuse operates, the spring pushes the internal contacts to close the alarm circuit. This can be discerned by watching the spring indicator through the window.
	1.1 Type of alarm fuses have their internal contacts inside the fuse. 1.2 Type of alarm fuses have their internal contacts inside the fuseholder.
	2.Wiring connection  To use the alarm contact, the standard connection method is shown below. The dotted lines are standard connection to earth.

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