tender for rotary switch /selector actuator 02 position with holder for contact blockmaintained contact with 03 numbers of 02 no contacts as per siemens make cat no.3sb5000-2ab01 for actuator and cat no. 3sb5400-oe for contact and teknic make cat no,2as2-2p for actuator and cat no. s1 for no contact and salzer make cat no. s6-61006sab13tdyr, confirming to rdso spec. no. rdso/pe/spec/ac/0184-2015 (rev. 0) suitablefor use in power supply on/off(place of installation: s1s01) in lhb type ac coaches inswitch board cabinet. acceptable makes - siemens / salzer / teknic or l&t. note :oem/authorized dealers should only to quote along with tender specific authorization certificate in railway format only.