HRC fuse din type 40 Amp. 690 V, breaking capacity 120 KA class 9R as per IS- 13703- 93 ( PT- 2013- II ) suitable for use in LHB coaches in underframe for battery charging circuit ( +- ve box ) as per RCF Drawing No. LW71001 and per RDSO letter No. EL/ 0. 6. 2/ LHB/ EOG/ Non AC. Make- RDSO approve make only.