supply of rotary switch 500 ampsrotary switch 500 amps,rotary switch 500 amps, similar to kaycee model no. c5037yu21 and confirming to is: 13947 part [1 and 3] 1993. rotary sw itch 500 amps 4 position, 3 way and off 90 degree operation with universal mounting [suitable for vertical or horizontal mountings] in open execution with capstan handle. terminals 1,2 and 3 shorted with suitable copper links and associated hardware. sequence position-1 [12 o clock] no contact, position 2 [3 o clock] 1 a, 3-c, position 3 [6 o clock] 2-b, 3-c, position 4 [9 o clock] 1-a, 2-b, 3-c and indicating plate size 178x178mm inscription as position 1 off, position 2 [ warranty period: 30 months after the date of delivery ] ]