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• Dc to dc converter for switch board cabinet of lhb ac coaches-110/24 v, 240w,10a. as per rdso letter no.( update on common bom) el/7.1.108/mssbc dt.17/09/2021 make-m/s.abb part no cp-c.1.24/10/m/s.cosel-klea240f240f-24/m/s.ask powertech-ask-cs-24v,10a/m/s.siemens-6ep13363ba10/m/s.phoenix-trio-ps-2g/1ac/24dc/10-2903149 only. on common bom) el/7.1.108/mssbc dt.17/09/2021 make-m/s.abb part no cp-c.1.24/10/m/s.cosel-klea240f240f-24/m/s.ask powertech-ask-cs-24v,10a/m/s.siemens-6ep13363ba10/m/s.phoe

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  Ministry of Railways Closes 09/11/2026

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• Contactor (with diode) and surge suppressor for compressor unit for rmpu of lhb coaches as per rdso spec. rdso/pe/spec/ac/0184 rev.1 and rdso letter no. el/7.1.108/mssbc, dtd. 17.09.2021. abb cat no .tal 30-30-10 + rv5/250 or equivalent, make abb/schneider/siemens/l & t only,

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  Ministry of Railways Closes 17/11/2026

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• Motor protection circuit breaker (mpcb) for water pump mbs 25 with aux. contact (1no+1nc) and terminal block db, current rating: 1.6 a, thermal release range:1-1.6 a, class:10, breaking capacity: 50ka, pole: 3, voltage: 415vac, confirming to s. no. 109 & 110 and place of installation s1f21 and s1f22 of bom (annexure-b) for switchboard cabinet (s1) of rdso spec. no. rdso/pe/spec/ac/0184-2015 (rev.0)

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  Ministry of Railways Closes 25/11/2026

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• Contactor k44 for 60 kva transformer, rated current: 95 amps, rated voltage: 690 v ac, main pole: 4, aux contact: 1no + 1nc control voltage: 230 v ac (168 v ac- 300 v ac means 230 v ac +/- 30 percent) with surge suppressor as per rdso spec no. rdso/pe/spec/ ac/0184-2015 (rev - 1) or latest and as per update of common bom items issued by rdso lr.no. el/7.1.108/mssbc, dt 17/09/21 or latest, to abb model no. af 116b-40, schneider model no. lc1d1150046m5 + la4da2u, c&s model no. lc1fdp1154u5+la9f9

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  Ministry of Railways Closes 10/11/2026

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• Pressure measuring rotary switch, as per part no sr-075 -1050 of m/s sidwal & type n4s29d/gb of kaycee make or equivalent to this of ge & salzer make only, as per sr no. 36 of bill of material (bom) of rdso specification no. rdso/pe/spec/ac/0061-2005(rev-1), suitable for use in rmpu type lhb ac coaches & conforming to rdso specification no. rdso/pe/spec/ac/0061-2005 (rev-1). accepted make: kaycee, salzar , ge , or any other rdso approved make.

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  Ministry of Railways Closes 16/11/2026

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• Feeder contactor, current rating 200 amps, voltage rating 750v ac main pole : 4 nos, aux contact : 2no +2nc, control voltage 380-415v ac with surge suppressor for net-1 & net-2 in sbc of double decker coaches confirming to item no 57& 58 of bom of rdso specification no rdso/pe/spec/0184-2015(rev-2)

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  Ministry of Railways Closes 10/11/2026

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• Supply of 25kv single pole vacuum circuit breaker including all accessories and fittings required for erection and commissioning as per rdso spec. no.ti/spc/psi/lvcbin/0121 (05/23) with a&c slip no. 1 dt:-06.01.2025 or latest.

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  Ministry of Railways Closes 09/11/2026

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• Rc filter consist of 1 ohm, 6 w resistor connected in series with parallel connected 1.5 micro farad 850 v capacitor in each arm of 415 v circuit between phase to neutral & phase to earth circuit as per rdso apec no. rdso/pe/.spec/ac/0184-2015 rev.1 & bom letter no.- el/7.1.108/mssbc dt. -17/09/2021 acceptable makes as per bom: ask-cs-017 abrol, maa laxhmi, bhasin packard, nacei, ael, ramyaa, trolex, trinitron, hind, ask power tech, sirveen only

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  Ministry of Railways | Central Govt. Ministry/Department · Gorakhpur Closed 14/03/2024

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• Miniature circuit breaker 16 amp d curve, 03 pole rated voltage 415 vac, breaking capacity 10 ka with din rail mounted as per bom of rdso spec no.- rdso/pe/spec/0184-2015 (rev-1) suitable for 5 kva transformer (primary) make as per common bom of rdso. letter no. - el/7.1.108/mssbc dt- 17/09/21

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  Ministry of Railways | Central Govt. Ministry/Department · Jaipur Closed 29/01/2024

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• Dc to dc converter for switch board cabinet of lhb ac coaches-110/24 v,240w, 10a as per abb catalogue no: cp-c.1 24/10, phoenix catalogue no: trio-ps-2g/1ac/24dc/10-2903149, cosel catalogue no: klea240f-24, siemens catalogue no: 6ep13363ba10 and ask powertech catalogue no. ask-cs-24v, 10a as per rdso spec. no. rdso/pe/spec/ac/0184 2015 rev.1 & rdso lr.no. el/7.1.108/mssbc, dt 17/09/21.

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  Ministry of Railways | Central Govt. Ministry/Department · Secunderabad Closed 28/03/2025

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