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Terminal Block, 50 Amp, 600 Volt AC/DC, Gray, 6 mm, Feed Through, 100 in a PackageRockwell Automation has tested Bulletin 1492 Screw Type and Spring-Clamp Terminal Blocks for SCCRs. These ratings allow terminal blocks to be used in conjunction with fuses, motor protection circuit breakers, and motor circuit protectors in power circuits. When components with SCCRs are used together, the process of obtaining SCCRs for UL 508A electrical panels can be simplified.