Insulation Monitoring Relay Rated 415 Volts, 3 Phase Neutral Isolated Voltage Range 0 To 500 Volts Ac, Insulation Measuring Range 0 To 500 Volt Ac, Insulation Measuring Range 10 Kilo Ohm To 150 Kilo Ohm, Control Supply 230 Volts 10 Percent , 50 Hz Having Fault Memory Test Reset Button And Alarm Lead As Per Rdso Specification No Rdso/pe/spec/0192 2018 (rev 1). Make: M/s Bender Ir 470ly 21a Or Equivalent In M/s Abb Or M/s Contrel Or M/s Woka Or M/s Schneider Or M/s Siemens Or M/s Dold Or M
| Tender Title | Insulation Monitoring Relay Rated 415 Volts, 3 Phase Neutral Isolated Voltage Range 0 To 500 Volts Ac, Insulation Measuring Range 0 To 500 Volt Ac, Insulation Measuring Range 10 Kilo Ohm To 150 Kilo Ohm, Control Supply 230 Volts 10 Percent , 50 Hz Having Fault Memory Test Reset Button And Alarm Lead As Per Rdso Specification No Rdso/pe/spec/0192 2018 (rev 1). Make: M/s Bender Ir 470ly 21a Or Equivalent In M/s Abb Or M/s Contrel Or M/s Woka Or M/s Schneider Or M/s Siemens Or M/s Dold Or M | ||
| Tender ID | NA | Tender Reference Number | LY255787A |
| Tender Type | Limited | ||
| Tender Opening Date | 2025-11-27 05:28 AM | Tender Closing Date | 2025-12-09 05:00 AM |
| Tender Value | Refer Document | Tender Location | Secunderabad , Krishna , Andhra Pradesh |
| Tender Category | Goods | Product Category | Electrical Goods and Equipments, Electrical and Electronics, Electronics Equipment |
| ePublished Date | 2025-11-27 05:28 AM | Bid Opening Date | 2025-12-09 05:00 AM |
| Document Download Start Date | 2025-11-27 05:28 AM | Document Download End Date | 2025-12-09 05:00 AM |
| Bid Submission Start Date | 2025-11-27 05:28 AM | Bid Submission End Date | 2025-12-09 05:00 AM |
| Clarification start Date | Clarification End Date | ||
| Bid Validity Period (in Days) | NA |
| Tender Fee | Refer document |
| EMD (Earnest Money Deposit) | Refer document |
| EMD Fee Type | NA |
| Payment Instruments/Mode | NA |
Work Description - For Complete Deion And Other Details, Please Refer To Tender
The Ministry of Railways, a Central Government Department, invites tenders for the procurement of Insulation Monitoring Relays. This Limited Tender, reference number LY255787A, seeks suppliers of relays rated for 415 Volts, 3 Phase Neutral Isolated Voltage with a range of 0 to 500 Volts AC. The insulation measuring range must be 10 Kilo Ohm to 150 Kilo Ohm, and the control supply should be 230 Volts ±10%, 50 Hz. The relays must incorporate fault memory, a test reset button, and an alarm lead, conforming to RDSO Specification No RDSO/PE/SPEC/0192 - 2018 (Rev-1). Acceptable makes include M/S Bender- IR 470LY-21A or equivalents from M/S ABB, M/S Contrel, M/S WOKA, M/S Schneider, M/S Siemens, or M/S Dold. This procurement falls under the Railway related Products category and will be located in Secunderabad. The e-publication and document download start date is November 27, 2025, at 10:58 AM. The document download and bid submission end date, as well as the bid opening date, is December 9, 2025, at 10:30 AM. No Tender Fee or EMD is required. Interested parties should refer to the tender documents for complete details. Inquiries can be directed to BZA/DIV/SOUTH CENTRAL RLY at the DRM Office complex in Vijayawada.

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| Office Inviting Bids | Bza/div/south Central Rly |
| Address | Drm Office Complex Vijayawada |
| Contact Details | NA |
| NA | |
| Website | NA |
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