Mpcb (motor protection circuit breaker), for ventilation fan unit 1& 2. thermal release range (rated current) 2.5-4 a, class: 10, breaking capacity: 50ka, pole: 3p, rated voltage: 415 v ac, 1no+1nc auxiliary contact block, conforming to rdso spec. no. rdso/pe/spec/ac/0192-2018 (rev.1).

Mpcb for compressor unit 1.1, 1.2, 2.1 & 2.2, heater 1 & 2 rated current: 7-10a thermal release range:10-16a, class:10, breaking capacity: 10ka, pole:-3p, rated voltage:- 415vac as per rdso letter no. el/7.1.108/ mssbc dt. 17.09.2021 annexure (bom) sr. no. 39.

Mpcb, current rating : 3-4 a, thermal release range: 2.5 - 4 .0 a, class: 10, breaking capacity: 50ka, pole: 3 p, voltage: 415 v ac, 1no+1nc auxiliary contact block. make: legrand (002807 = 002817), abb (ms116-4), hk1-11), schneider (gv2me08 = gvan11), l&t (st418960000 + sr419450000), siemens (3vu1340 - 0mj00 1no = 1nc:3rv1901-1a or 3vu9131-3aa00), c&s (tcms-32s-4 + tfx11), eaton (pkzm0-4 + nhi-11-pkz0) as per bill of material (bom) of rdsos specn. no. rdso/pe/spec/ac/0184 - 2015 (rev. 0) as p

Mpcb, current rating: 16 a, thermal release range: 10-16 a, class: 10, breaking capacity: 10ka, pole: 3 p, voltage rating: 415 v ac conforming to rdso spec. no. rdso/pe/spec/ac/0184 - 2015 (rev. 0) as per drg.no. nil specn: rdso spec. no. rdso/pe/spec/ac/0184 - 2015 (rev. 0)

C&s make acb 2500a 415v 3p, ah-25d-cs in 2500a, ue 415v, ui 1000v, icu: ics: 50ka icw(1s) : 50ka,c&s make acb 3200a 415v 3p, ah-30d-cs in 2500a, ue 415v, ui 1000v, icu: ics: 65ka icw(1s) : 65ka,c&s air circuit breaker ah 40d cs, in: 4000a, ue 415 v breaking capacity at 415 v, icu 100ka, ics 1

Hrc fuse link (din type) 25amp, 415 /500v ac breaking cap 120ka, size 000,conf. to rdso specification no. rdso/pe/spec/ac/0184 - 2015 (rev-1).

Contactor (with diode) for ventilation fan unit 1 & 2 condenser cd1. 1, cd1.2, cd 2.1 cd 2.2 heater 1 & 2, rated current: 16 a (at rated voltage & ac-3 utilization category) rated voltage: 690 v ac main pole: 3 no aux contact: 1nc, control voltage: 77-143 v dc with surge suppressor make: siemens (3rt2018-1bf42 3rt2916-1jl00) and lk (l&t) (cs965671 ooo +cs96586 oooo) as per bill of material of rdso spec. no. rdso/pe/spec/ac/0184 percent u20132015 (rev-2) or latest

3 phase measuring and monitoring relay rated voltage looo v ac for net 1 net 2 as per rdso spcn. no. rdso/pe/spec/ac/0184-2015(rev.1)

Motor protection circuit breaker (mpcb) for compressor unit and heater unit, current rating 7-10 amp, thermal release range 10-16 amp, class-10, breaking capacity 10ka, 3-pole, voltage rating 415 v ac, conforming to is/iec 60947-2; conforming to rdso spec. no. rdso/pe/spec/ac/0184-2015 (rev. 1); suitable for use in switch board cabinet of lhb type ac coaches. accepted make & cat. /model no.: rdso-approved make and model as per serial no. 39 of rdso letter no. el/7.1.108/mssbc dated 17.09.2

Power contactor [with diode] for compressor unit of lhb type ac coaches, 3 pole, rated current- 32 a (at rated voltage & ac-3 utilization category), rated voltage- 690 v, coil voltage 77-143 vdc, with surge supressor, with 1 nc aux contact, conforming to rdso spec no. rdso / pe / spec / ac / 0184-2015 (rev1), suitable for lhb type ac coaches switch board cabinet [place of intallation- s1k33, s1k34, s1k38, s1k39]. accepted make & cat nos.: - as per sr. no. 60 of common bom of rdso letter no. e