procurement of speed o control make dc emergency break, thruster and switches for various eot crane installed at btg and bop area of 2x250mw for emd-4, stps, sarni. procurement of speed o control make dc emergency break, thruster and switches for various eot crane installed at btg and bop area of 2x250mw for emd-4, stps, sarni. , speed o control make dc emergency break, thruster and switches for various eot crane installed at btg& bop area , d.c.e.m brakes (dm 160) dlf - 160 model drum - dm-160, dia. (mm) - 160 , breaking torque (kgm)- 10,stroke (mm) – 3 , voltage input - 415v ac through rectifier, inrush voltage -350vdc,holding voltage -110vdc,operating temperature-30 + 50 c,coil -copper wire epoxy resin encapsulated, rating -continuous, no. of operations 720/hr,insulation - h class,weight (kg) -36ref no.-dm-160 , rectifier panel complete unit for dcem break consist of power supply + control section, transformer 415v ac / 8,15,24 av ac, silicon control rectifier , mcb, contactor, fuse, 7 segment display- 4 digit , keypad( 4 keys ) for settingsuitable for drum size 160 mm break ref no.-rt160 , thruster breakwith assembly drum dia 160 mmtype- st520, kg – 18, cm -5, amp - 0.25, v – 415, c/s- 50, ph- 3, sl. no.- se3991ref no.-st520 (with drum & its assembly ) , thruster breakwith assembly drum dia 250 mm type- st535, kg – 34, cm -5, amp - 0.4, v – 415, c/s- 50, ph- 3, sl. no.-se3991ref no.-st535( with drum & its assembly ) , thruster breakwith assembly drum dia 300 mm type- st535, kg – 34, cm -5, amp - 0.4, v – 415, c/s- 50, ph- 3, sl. no.-se3991ref no.-st535( with drum & its assembly ) , rotary geared limit switches grlsbody material - aluminum die cast,protection degree - ip-55 confirming to (is/iec : 60529(2001) , gear ratio - 48:1 ,drive- worm drive,cable entries - 2x3/4* conduit, contact material - silver cadmium,rated voltage insulation- 500 v.a.c. , thermal test current - 40 amps,no. of contacts- 2nc or 2no , cam setting - adjustableref no.-grls/48/2sh , weight limit switch - 40abody material - powder coatedaluminum die cast,degree of protection - ip-55 is/iec-600529 : 2001, mounting position - floor mounting,cable entries - twin, 3/4” bs conduit,no. of contact – 2,contact- silver-cadmium,wire connection - screwed terminals,thermal test current – 40a,rated voltage - 500 vacref no.-cwls/1sh/1