Knurled control knob IZN.381

Material Glass-fibre reinforced polyamide based (PA) technopolymer, black colour, glossy finish. Boss cap ECA-IZN.381: acetal resin based (POM) technopolymer, in the Elecolors colours, push-fit assembly, removable by pressing on the outer edge (ELESA original design). Available also as accessory sold separately (see table). Wording, brands, graphic symbols, etc. can be pad printed on the surface in colour. Standard executions Black-oxide steel boss, H7 reamed hole. Assembly with grub screw, without head, with hexagon socket in black-oxide steel; supplied already assembled. IZN.381: plain knob. IZN.381+K: knob with matte anodised aluminium flange, triangular black index. IZN.381+FGS:knob with matte anodised aluminium flange, black graduation (marks and numbers). FGS 10/40 = 40 marks, numbering from 0 to 9 increases as the knob is turned clockwise. FGS 10/100 = 100 marks, numbering from 0 to 9 increases as the knob is turned clockwise. For other numbering (see Graduations-). Accessories on request Ball and spring for clicking operation to be fitted in the assembly hole for knobs with diameter D ≥ 48 mm, available only for IZN.381 (see ball and spring MS.-). By adjusting the housing unit (unit made pass-through and threaded), facilitated by the presence of a pre-drilled hole in the top part of the knob, it is possible to use GN 615 ball and spring plungers (neutral execution) and GN 616 bolt spring plungers (knob with flange) to calibrate the pressure of the positioning element.