Specifications include, but are not limited to: 21 CURRENT TRANS 50-5 SEC LES Material number 10742 CURRENT TRANSFORMERS 50-5 RATIO 600 VOLT INSULATION CLASS, OUTDOOR RATING FACTOR OF 4 PRESSURE TYPE SECONDARY TERMINALS ASTRA / GEC DURHAM INDUSTRIES - 91 ABB INC. - 4460A30G25; 30 CURRENT TRANS 100-5 SEC LES Material number 10749 CURRENT TRANSFORMERS 100-5 RATIO 600 VOLT INSULATION RF= 4.0 WINDOW ID MUST BE 2.5" OR LARGER PRESSURE TYPE SECONDARY TERMINALS ABB INC. - 4460A30G23 GE ENERGY SERVICES - 750X133726 ASTRA / GEC DURHAM INDUSTRIES - MODEL AB1 CAT#93KP; 60 CURRENT TRANS 200-5 SEC LES Material number 10751 CURRENT TRANSFORMERS 200-5 RATIO 600 VOLT INSULATION CLASS RF - 4.0 AT 30C B.I.L. OF 10 KV LOW BASE 2.6 INCH I.D. WINDOW ACCURACY CLASS 0.3 @ B 0.5 PRESSURE TYPE SECONDARY TERMINALS ASTRA / GEC DURHAM INDUSTRIES - MODEL AB2 CAT#100KHP ABB INC. - 4460A30G01 ITRON/ SCHLUMBERGER - 92352-015 - DISCONTINUED GE ENERGY SERVICES - 750X133725