Current Transformer Current Transformer 2 Series Information Flexible Leads Are UL 1015 105°C, CSA Approved #16 AWG, 24" Long Terminals Are Brass Studs No. 8 32 UNC with One Flat Washer, Lockwasher and Regular Nut SHT and SFT Case Styles Also Available as SHL and SFL with Leads Has a Frequency Range of 50-400 Hertz