Issues with installing fuses or miniature circuit breakers in front of surge protectors

2009-10-24View Original

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Are there any regulations regarding the selection of fuses or miniature circuit breakers to be used in front of surge protectors?

Reply #22009-10-25

Method for selecting the switch or fuse at the upper end of the surge protector: Determine (the breaking current C of the switch or fuse) based on (the maximum fuse rating A of the surge protector) and (the maximum supply current B of the power distribution circuit to which it is connected). Determination method: When B > A, C is less than or equal to A. When B = A, C is less than A or C is not installed. When B

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Issues with installing fuses or miniature circuit breakers in front of surge protectors

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