For 1, 2 and 3 sizes. Those switches can be supplied with a special device which prevents the switch from being turned-back to the previous position. This device has the next prices:

Size	1	2	3
Price	5,66	8,20	11,25

To prolong the length of a switch shaft you have, you can receive an AE adaptor for every switch size, with the desired shaft length, ready to link.

ADAPTADOR AE C-...	0	1	2	3
Price	2,77	2,77	2,77	2,77
squared shaft of 250 mm	5	6	8	10
Price	3,65	3,65	4,86	4,86

Under order, the switches can be supplied with a longer shaft. The price for each 100 mm is:

EJE PROLONGADO C-...	0	1	2	3
Price	3,65	3,65	3,65	3,65