supply of auxiliary contactorauxiliary contactor,converter a & b enables control auxiliary contactor 2no+2nc with 110 v dc coil, with extra auxiliary add on block 2no+ 2nc. material shall conforming rdso specification no. rdso/ pe/ spec/ tl/019 5-2019 (rev-0). material is schneider part no. ca3kn22bd+la1kn02 or siemens part no. 3rh21221bf40+ 3rh2911-1ha01 or abb part no. nfzb22ert-21+cal4-11rt or l&t part no. mo0 dc or c&s electric part n o. tca3dn22fd+ ta1dn11. [ warranty period: 30 months after the date of delivery ] ] , 25 a control auxiliary contactor 25a, 3 poles with coil voltage 110 v dc with integrated 1no +1nc , with extra auxiliary add on block 2no+ 2nc. used in lhb lsrd coaches, conforming to rdso speci fication no. rdso/pe/spec/tl/0195-2019 (rev. 0) to siemens part no. 3rt20261bf40+3rh2911 1ha11 or abb part no. af26-30-00-12, 48-130v ac/dc+ca4-22e or schnieder part no. lc1d25fd+ladn11 or equiv alent part of c &s,l & t only. [ warranty period: 30 months after the date of delivery ] ]