supply of plc spares supply of plc spares , batteries , belt sway switch identical & inter changeable with jayashree makebss type- sw-4028t22 contact rating-10 amp. 24v dc, contact- 2no+2nc , handle / roller assembly for belt sway switches model no. b / 0076 / 1 suitable for bss type- sw-4028t22. jaya shree make. , digital zero speed switch with dc proximity switch / probe for under speed monitoring, each zss unit should consist of monitoring unit & sensor porbe. supply voltage-110v ac / 240 vac current rating-5a / 10a contact -2 no+2nc rating of rpm:-20 to 200 rpm initial bypass timer-0 to 60 second. nuisance trip delay timer- 0 to 30 second. specification for sensor probe:- sensor probe size-m30. sensor probe diameter-30 mm. proteciton-ip67. type- inductive type with 02 meter length 3 core pvc cable. sensing distance-10 to 15 mm status indication- led protection from- transients / overload / false pulse / incorrect polarity / short circuit / voltage spike.