Procurement of bch make element or contact block of 1no 1nc contact rated for 1 5 amp at 415v ac15 duty as per is13947 5 1 insulation voltage 690v suitable for limit switch type nll2c cat no sp40s1, bch make element or contact block of 2no 2nc contact rated for 1 5 amp at 415v ac15 duty as per is13947 5 1 insulation voltage 690v suitable for limit switch type nll2c cat no sp40s2, bch make two stage foot switch type fsgy2 with 2 sets of double through 2no 2nc contact block 240v 2amp and ac11 rating encloser should be watertight and oiltight and other related items