for product data sheets, visit www .cooperb ussmann.com/products/datasheet.asp 82 medium voltage fuses ab, am and cav specifications description: british standard vt fuses with low current ratings for use in voltage transformers or operating transformers to provide isolation of the associated system in the event of faults in the transformer circuit. dimensions: see basic catalog numbers table. basic catalog numbers for ab & am series basic cat. dimensions - in (mm) numbers volts amp ratings type length diameter ir abwna 3.6kv 3.15, 6.3 ab 5.6 (142.2) 1 (25.4) 50ka abcna 3.6kv 3.15, 6.3, 10 ab 7.69 (195.3) 1 (25.4) 50ka abwna* 5.5kv 0.5, 1, 2, 3, 5 ab 5.6 (142.2) 1 (25.4) 50ka amwna* 5.5kv 0.5, 1.0, 2.0, 3.0, 4.0, 5.0 am 5.6 (142.2) 0.81 (20.6) 50ka abwna 7.2kv 3.15, 6.3 ab 5.6 (142.2) 1 (25.4) 45ka abcna 7.2kv 3.15, 6.3 ab 7.69 (195.3) 1 (25.4) 45ka abcna 12.0kv 3.15 ab 7.69 (195.3) 1 (25.4) 45ka abfna 15.5kv 3.15 ab 10.00 (254) 1 (25.4) 32ka abgna 17.5kv 3.15 ab 14.13 (358.9) 1 (25.4) 35ka abgna 24.0kv 3.15 ab 14.13 (358.9) 1 (25.4) 25ka abgna** 36.0kv 3.15 ab 14.13 (358.9) 1 (25.4) 31.5ka recommended fuse clip for 1 diameter fuses C a3354705. basic catalog numbers for ?av series basic cat. amp dimensions - in (mm) number volts ratings length diameter ir cav 3.6kv 2 8.66 (220) 1.63 (41.4) 50ka cav* 5.5kv 15 7.375 (187.3) 1.63 (41.4) 50ka cavh* 5.5kv 0.5, 1, 2 7.375 (187.3) 1.63 (41.4) 50ka cav 7.2kv 2, 10 8.66 (220) 1.63 (41.4) 40ka cav 12kv 2 8.66 (220) 1.63 (41.4) 40ka cav* 15.5kv 0.5, 1, 2, 3, 7 12.87 (326.9) 1.63 (41.4) 80ka cavh* 15.5kv 0.5, 1, 2 12.87 (326.9) 1.63 (41.4) 80ka cav 17.5kv 2, 4, 6, 10 8.66 (220) 1.63 (41.4) 40ka cav 24kv 2, 3, 4 13.39 (340.1) 1.63 (41.4) 40ka cav 36kv 2, 4 17.32 (439.9) 1.63 (41.4) 40ka cavh 36kv 2 17.32 (439.9) 1.63 (41.4) 40ka cav* 38kv 4 17.32 (439.9) 1.63 (41.4) 40ka cavh* 38kv 0.5, 1, 2 17.32 (439.9) 1.63 (41.4) 40ka type cavh are fitted with a striker pin for indication. * e-rated fuses **for clean indoor applications only. potential transformer fuses recommended fuse clips: 1 dia. - a3354705, 1.63 dia. - 1a0835, .819 dia. - 1a1837 contact cooper bussmann for complete specifications on potential transformer fuses ratings: e-rated: see single asterisk in basic catalog numbers table volts: 3.6-38kv (see basic catalog numbers table) amps: 2-15a (see basic catalog numbers table) ir: 25-80ka (see basic catalog numbers table) agency information: bs2692-1 and iec60282-1 features and benefits ? physically dimensioned for retrofitting in existing hardware. ? space saving size. typical applications ? medium voltage potential transformers ? small medium voltage service transformers catalog number build-a-code kv basic catalog number amps _ _ _ _ _ _ _ _ _ _ _
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