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Confirm coordination with upstream protective devices and equipment short‑circuit ratings
UL AC rating 250 V
Clearing (I2t): 21
providing R class semiconductor protection and peace of mind
helping buyers confirm part number alignment
Mersen PC73UD69V16CTF / X300518 Protistor Size 73 aR High-Speed Fuse, 1600A, 690VAC 4A Confirm coordination with upstream protectiveThe Mersen PC73UD69V16CTF (Reference Number: X300518) is an ultra fast acting square body fuse link from the Protistor series, specifically developed for the high end protection of semiconductor power devices. This Size 73 aR class fuse is the preferred solution for safeguarding power rectifiers, large UPS systems, and variable speed drives against catastrophic overcurrent events. Featuring a substantial current rating of 1600A and a voltage rating of
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