OT75 is a Mersen Class K5 fast-acting one-time fuse, carrying 75A with a 250VAC / 250VDC voltage rating, suited to feeder, branch-circuit and resistive-load protection in a blade format.
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OT75 is specified as a Mersen Class K5 fast-acting one-time fuse for feeder, branch-circuit and resistive-load protection. 75A and 250VAC / 250VDC define the primary electrical envelope, while Class K5 fast-acting protection with a 50kA interrupting rating and blade describe protection and fit. Confirm installation details and coordination against the official Mersen datasheet before placing it into a design.
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