The present invention relates to an arc resistant acrylic fiber that comprises an infrared absorber in an amount of 1 wt% or more and 30 wt% or less with respect to the total weight of an acrylic polymer. The present invention also relates to a fabric for arc-protective clothing including the arc resistant acrylic fiber in which the content of the infrared absorber with respect to the total weight of the fabric is 0.5 wt% or more. The present invention also relates to a fabric for arc-protective clothing including a cellulosic fiber that further comprises an infrared absorber and a flame retardant and in which the average total reflectivity with respect to incident light with a wavelength of 750 to 2500 nm is 60% or less. The present invention also relates to an arc-protective clothing including the fabric for arc-protective clothing.
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