tender for 415 volt, 50hz, 3 pole, 9 amps, ac 3 duty, operating coil voltage 110 volt dc(77-137), powercontactor, with surge suppressor diode 77v-150 dc, and auxiliary contact block (front mounting) 1 no +1 nc ofm/s abb make tal-16-30-01 auxiliary contact block ca5-01 and ca5-10, surge suppressor rts/150, orschneider -lc 1 d9 fd/siemens 3rt 1016-1jf 42 with auxiliaries, surge suppressor or aeg ls4k01,dc110v suitable for switchgear rake of lhb ac coaches.