Electrical Industry, Electrical Product, Electrical Products, Construction, Civil Construction, Other Power Plant-Andhra Pradesh

Supply Of Class -Ii /C-Type Lightning And Surge Protection Safety Device For 24V Ac/Dc Supplies At The Out Put Side Inside The Equipment Rdso Spec.No./165/2012 Version 3 Or Latest. Detailed Specifications:The Stage 2 Protection Shall Consist Of Class Ii/ C Type Spds For Greater Than Or Equal To 24V-110V Ac/Dc Supplies At The Output Side Inside The Equipment. These Shall Be Provided For External Circuits I.E. Relay External Circuit, Axle Counter Circuit, Point Machine Circuit And Led Aspect Signals Out Put. The Class Ii/C Type Spd Shall Be A Single Compact Varistor Of Proper Rating And In No Case A Number Of Varistors Shall Be Provided In Parallel. It Shall Be Voltage Clamping Device And Thermal Disconnecting Type. They Shall Be Tested As Per Iec 61643 With The Following Characterstics And Features: Parameters Limits Between L1 And 1.2, L1 And E, L2 And E . 1.Nominal Voltage Uo - 240V-60 V Ac/Dc. 2.Maximum Continuous Operating Voltage Uc - Greater Than Or 75 Ac , Greater Than Or 100 Dc . 3.Nominal Discharge Current 8/20Us In - Greater Than Or 10 Ka. 4. Maximum Discharge Current 8/20 Us I Max - Greater Than Or 40 Ka. 5 Response Time Tr - Greater Than Or 25Ns. 6 Voltage Protection Level Uo - Greater Than Or 0.5 Kv. 7 Operating Temperature/Rh - -25 Deg C To 80 Deg C/95 Percent . 8 Mounted On - Din Rail. 9 Indication:Mandatory. 10 Plugability:Mandatory. 11 Potential Free Contact For Remote Monitoring - Mandatory. 12 Degree Of Protection:Ip 20. 13 Housing:Fire Retardant As Per Ul 94. Length Of All Cable Connection From Spds To Earth Equi-Potential Bus Bar Shall Be Kept Less Than 0.5 Mtrs. For This, A Sub Earth Equi-Potential Bus Bar Shall Be Installed At Approx 20 Cm From The Spd. Make:Obo, Phoenix, Dehn,Abb, Fatech. Note:1 Oem Authorisation To Accompany The Offer. Sub Dealership Not Acceptable. 2 Oem Warranty Applicable. 3 One Sample To Be Got Approved By Consignee Before Bulk Supply.

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