Series KK/KKH S Couplers RoHS SSeerriieess KK Without sleeve lock Effective area is equivalent to that of Series KK. Series KKH Sleeve cover standardized Series KK2 Series KK3/4/6 The pulling strength for the plugs and sockets has been improved. Twice as strong as the conventional models. 33..88 ttoo 8822 mmmm22 With sleeve lock (Except for KK2) Effective area 3.8 to 82 mm2 167 KQ2 KQB2 KS KX KM KF M H/DL L/LL KC KK KK130 DM KDM KB KR KA KQG2 KG KFG2 MS KKA KP LQ MQR T