If an electric plug or circuit is fused, it has a fuse in it.
fused in British English
(fjuːzd)
adjective
having a protective device for safeguarding electric circuits, etc, containing a wire that melts and breaks the circuit when the current exceeds a certain value
a fused circuit
Examples of 'fused' in a sentence
fused
Didn't philosophers speculate that, at some distant locus, all polarities fused ?
Reeves, Robert DOUBTING THOMAS (2001)
Any sense of transgression she might have had was now inextricably fused with a sense of the inevitable naturalness of her actions.
Appiganesi, Lisa DREAMS OF INNOCENCE (2001)
Nor could he see anything: his eyelids had been fused shut by the heat.