Littelfuse LFH25030-3P Open Fuse Block, 250V AC/DC, 3 Poles

Open fuse block for Class H and K5 fuses

This Littelfuse LFH25030-3P open fuse block accepts Class H and K5 fuses up to 30 A at 250 V AC/DC. It provides three poles for multi-phase or multi-circuit protection in industrial and commercial panels. Installers who need a compact, bolt-down or DIN-rail mountable block with pressure-plate terminals will find it suited to standard wiring practices. It is not intended for buyers who require indicating or rejection-type fuse holders.

Thermoplastic body with spring-reinforced clips

The thermoplastic housing and spring-reinforced clips maintain consistent contact pressure during sustained current flow up to the 30 A rating. Pressure-plate connectors accept conductors from 22 to 10 AWG without special tools, reducing resistance drift over time. The non-indicating design means visual fault detection requires external inspection. Builders who need built-in blown-fuse indication should select a different series.

Bolt-down or DIN-rail mounting with 1.58 in height

The block measures 1.58 in high, 2.94 in wide and 3.01 in long, fitting standard panel cut-outs and DIN rails. Open construction allows free airflow around the fuse elements, limiting temperature rise in normal operation. No active cooling is required, and the design adds negligible acoustic noise. Users who need enclosed or finger-safe housings must consider alternative form factors.