tender for 4-pole contactors for controlling power circuits up to 690 v ac and 440 v dc. a50-40-00 380-400v50hz / 400-415v 60hz suitable to abb: product id: 1sbl351201r8400 along with ca5-22e auxiliary contact blockabb product id: 1sbn010040r1022 and rv5/133 surge suppressor abb: 1sbn050010r1001. required makes:abb, siemens, l&t or schneider.