The present invention relates to a subsea fuse device (20) comprising a fuse housing (21) and a fuse wire. The fuse wire comprises a first end section (22), a second end section (23), and a central section (24). The fuse housing (21) comprises a one-piece outer envelope which completely encloses a hollow space (27) and provides a first feedthrough opening (25) and a second feedthrough opening (26). The central section (24) of the fuse wire is arranged within the hollow space (27), the first end section (22) of the fuse wire is extending through the first feedthrough opening (25), and the second end section (23) of the fuse wire is extending through the second feedthrough opening (26). At the first feedthrough opening (25), an outer circumferential surface of the first end section (22) is in contact with an inner circumferential surface of the first feedthrough opening (25) and seals the first feedthrough opening (25). At the second feedthrough opening (26), an outer circumferential surface of the second end section (23) of the fuse wire is in contact with an inner circumferential surface of the second feedthrough opening (26) and seals the second feedthrough opening (26).