Linergy NEMA fuse holders are panel mount fuse holders that will accept class H, R, CC, M, and J fuses up to 200 Amps. This three pole fuse holder will accept class H fuses. The rating of the fuse can be up to 30 Amps with a 250 V maximum rating. The pressure wire connectors will accept 14 to 10 AWG (2.5 to 4 mm2) solid or stranded copper wire. Fuse clips are made of a copper alloy that is tin plated. The fuse clips are reinforced for a better connection. The fuse holder base is made of high impact thermoplastic. AIC Rating in accordance with UL512 is 10,000 Amp. This fuse holder is UL listed and CSA certified. Melting alloy thermal units are available in three designs: standard trip (Class 20) slow trip (Class 30) quick trip (Class 10) Calibration is set for a range of motor full load currents Provides overload protection for most motors Melting Alloy Thermal Units Cannot be reset until cooled