Mersen ATMR30 Amp-Trap Fast Acting Fuse. Mersen Amp-Trap Fast Acting Fuse, Series: ATMR, Non-Indicating, Rejection, 30 A, 600 VAC/VDC, 200/100 kA Interrupt, Class: CC, Ferrule Terminal, Holder Mount, Cylindrical Body Type, Single Element, GMG, 13/32 in Dia x 1-1/2 in L Body Size. Additional Description: MERS-ATMR30 600V 30A CC FUSE. Catalog Description: Amp-Trap ATMR fast-acting fuses are the smallest dimension 600V fuses suitable for branch-circuit protection. The ATMR is a popular choice for economical protection of control circuits and control circuit transformers where available short circuit currents exceed 10,000 amperes. ATMR's rejection dimensions prevent substitution by lesser rated fuses. These fast-acting fuses give current-limiting protection to general circuits. 600 Volts 30 amps ATMR series..