Kit contains LED intelligent blade fuses (5 of each): 5, 10, 15, 20, 25, 30 amp. Patented single bi-directional LED. Housing material: PA66 thermoplastic; fuse: zinc alloy. Voltage rating: 32V DC max. Interrupting rating: 1000A @ 32V DC. Conforms to SAE J1284 & ISO 8820-3. RoHS & REACH compliant. Top up packs available, see Part Nos. 37131 (5A), 37133 (10A), 37134 (15A), 37135 (20A), 37136 (25A), 37137 (30A).