1 set — 3-pole quick ceramic fuse with holder (4A, 250V) Key benefits Reliable short-circuit and overload protection for three-line circuits: ceramic construction and quick (fast-acting) fuse elements provide consistent interruption performance when needed. Simple, fast maintenance: fuse holder design allows quick replacement without rewiring, minimizing downtime. Wide compatibility and flexibility: available in multiple current ratings and standard sizes to match common electrical installations. What you get One 3-pole quick ceramic fuse and one matching fuse base (holder). This listing is for the 4A option; the product family is also available in 1A, 2A, 6A, 8A, 10A, 16A, 20A, 25A and 32A ratings. Fuse base rating: 250V. Available sizes: RO15, RT18, RT14 (select size when ordering). Key features and specifications Fuse type: quick (fast-acting) ceramic fuse for prompt interruption of fault currents. Poles: 3-pole configuration for three-phase or multi-line protection. Base (holder) included for correct mounting and safe replacement. Voltage rating: designed for use up to 250V. Current ratings offered: 1A, 2A, 4A, 6A, 8A, 10A, 16A, 20A, 25A, 32A. Sizes/models: RO15, RT18, RT14. Why choose this set Ceramic body for higher thermal stability and reliable breaking capacity. Matched fuse and base reduce compatibility errors and simplify installation. Quick replacement capability reduces service time in panels and equipment. Typical applications Motor starter protection and control panels for small motors and pumps. Distribution and control boards in commercial or light industrial installations. Protective fusing for HVAC units, power converters, or equipment with three-line inputs. Ordering note This product is sold as one set consisting of a 3-pole quick ceramic fuse and its matching holder. The current rating for this listing is 4A; other ratings (1A–32A) and sizes (RO15, RT18, RT14) are available in the same product family—please select the required rating and size when purchasing.