Tender For supply of over voltageprotectionunit for 25/4.5 kw, 110 v dc, rru of tl/ac coaches as per rdso functional requirement specification no. rdso/pe/frs/ac/0005- 2013 along with accessories as per clause no. 5 of rdso modification sheet no. rdso/pe/ms/ tl/0021 -2004 (rev.1) suitable for retrofitment in all makes of 4.5 / 25 kw rru. accepted makes: dishita, hmtd, icecpl, kind, kel, pds, prestech, star electric, stesalit & green power generators pvt. ltd or any equivalent make approved by rdso/icf/rcf. offers from oem or their authorized dealers shall only be acceptable. [ warranty period: 30 months after the date of delivery ]