supply of insulation monitoring relay (imr) to monitor 3 phase power supply of voltage range 110v ac, measur ing range 1-100 kohm, control voltage 24-240vac/dc output 1c/0(spdt) contact system leakage capacitance 10 m icro farad as per contrel model no.ir 140y-4, ri-r22 (or)abb model no.cm.iws.1s (or)schneider model no.vigil oh m/imd-im10 (or) siemens model no.3ug4581-1aw31 (or)dold model no.il5880.12 (or)bender (or)woka. accepted makes : contrel/abb/schneider/siemens/dold/bender/woka. [ warrant

North Central Railway has invited bids for the supply of insulation monitoring relay (imr) to monitor 3 phase power supply of voltage range 110v ac, measur ing range 1-100 kohm, control voltage 24-240vac/dc output 1c/0(spdt) contact system leakage capacitance 10 m icro farad as per contrel model no.ir 140y-4, ri-r22 (or)abb model no.cm.iws.1s (or)schneider model no.vigil oh m/imd-im10 (or) siemens model no.3ug4581-1aw31 (or)dold model no.il5880.12 (or)bender (or)woka. accepted makes : contrel/abb/schneider/siemens/dold/bender/woka. [ warranty period: 30 months after the date of deliv ery ] ] - insulation monitoring relay., with an EMD of ₹0 Cr. Please refer to the tender document for project value details. Interested bidders can submit applications until 7 October 2026, with the technical opening scheduled for 7 October 2026.