purchase & stores division - ISRO

Master Control Facility – Hassan
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Ultra Safe Modular Fuse Holders (For DC control circuits)
Single pole, Suitable for 14x51 cylindrical HRC fuse links, Din rail mounting
type, Confirming to IEC 269-2-1, 'Finger safe' under IEC standards to an IP-2
grade of protection, Blown fuse indicators for each pole. Make; Siemens /
Schneider / Ferraz-Shamutt / Telemecanique
HRC Fuse Links (For DC control circuit)
Rating: 4A, Nominal Voltage: 415VAC, Breaking capacity: 80kA at 415VAC,
P.F. of 0.15, Confirming to IS: 9224 1979. Cylindrical type of size 14 x 51
mm. Make: Siemens / Schneider / Ferraz-Shamutt / Telemecanique
CT Shorting isolator (for T1, T2, G1, G2 & G3 -Satec meter)
Triple pole isolator, Rating: 16A. Make: L&T -Hager / Siemens / Schneider /
MDS -Legrand / GE / ABB
CT Shorting Terminals (for LT panel outgoing feeders)
Terminal connector, 800 VAC grade, Suitable for termination of cable from
0.08 to 4 sq mm, Rating -32A, Colour -Grey, Din rail mounting type, Material
-modified Nylon 6.6 free of halogens, flurocarbons etc., Continuous operating
temperature -105 degree C, Electrolytic copper Ecu. Make: WAGO or
equivalent in Connectwell / Salzer
Change Over, ON / OFF, Auto / Manual Switch
(For Neutral contactor, PSI) Rating: 10A, Switching angle 90 degree, Flush
mounting type, Rated operational voltage -440VAC, Frame size -48 mm.
Make: L&T-Salzer / Kaycee / Siemens / Schneider
Breaker Control Switch (TNC)
Frame size - 88 mm, Lever handle, shall be lockable in neutral position, Front
mounting with grey colour, handle black colour, Engraved 'Trip', Neutral' &
'Close', IP 40 protection. Make: L&T-Salzer / Kaycee / Siemens / Schneider
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25
5
As
required
As
required
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21
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Power Contactor (For G1, G2 & G3 Neutral)
Utilization category AC-3 at 415 V, 50 Hz, 3 Ph, Auxiliary contact 2NO+2NC, Coil
voltage: 240 VAC, Confirming to IS13947 (Part 4 / Sec.1) and IEC 60947-4-1,
Rating: 400A, Rated insulation voltage: 690V AC. Make: L&T / Schneider -TM /
Siemens / ABB
Emergency Push button
The local EPO shall include a non-illuminated "Emergency Power Off"
pushbutton. Pressing the EPO switch shall immediately shut down the unit by
activating the shunt trip of the all main input and bus coupler circuit breakers.
Make: L&T-ESBEE / Siemens / Schneider / ABB / Tecnic
Flasher with beeper / Indicator banks (For T1, T2, G1 to G3)
Amber colour flasher cum beeper for fault trip indication & alarm with
acknowledgement. Make: MIMIC / Schneider / Rittal
Indicating Lamps
(For T1, T2, G1, G2, G3 RYB indicatios, ACBs ON/OFF indications, Fault trip
indications) Type: LED, Ribbed lens with trim collar anodised bright, Flush
head, Input supply voltage 250VAC, 50 Hz. Color cade should be Red,
Yellow, Blue & Green. Make: L&T-ESBEE / Siemens / Vaishnav / Tecnic /
Schneider / ABB
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1
5
As
required
Semi Modular substation LT panel –Specification 12