Mersen Amp-Trap midget fast-acting ATM fuse is rated 600 volts AC and DC, with a 100kA interrupting rating. These ratings give the ATM a wide range of applications not covered by other midget fuses. Highlight: fast-acting. Applications: supplemental protection of of circuits up to 600VAC and 600VDC with 100kA interrupt rating. Measures 13/32-inches diameter by 1-1/2-inches length. Approvals: UL listed to standard 248-14 File E33925. DC listed to UL standard 248-14. CSA certified to standard C22.2 No. 248.14.