... Disc Suspension Insulators: XP-70A, XP-70C-A, XP-125-A, XP-160-A, etc. 4). According to the Electromechanical Failing ... Series Pin Insulators & Pins: BS Insulators: P-11-Y, P-15-Y, P-22-Y, P-33-Y, Pw-11-Y, Pw-15 ... BS.29; etc. 4). AS Series Pin Insulators: P-11-A, P-22-A, P-33-A, etc. 5). DIN Pin Insulators: ST-10/J ... , ST-15/J, ST-20J, P-20-D, etc. ...