Quick start
1. Family
2. Operator
3. Position names
4. Contact blocks
Switch and truth table
Parts list
30 mm cam finder enter the sequence you need, get the cam and blocks
For 3-position 9001K / 9001SK. Set X (closed) or O (open) for each circuit in each position. The finder lists every cam that can do all of them, with the block and side for each circuit (Schneider Type K target table).
How the contacts work 22 mm locations, 30 mm sides and cams
22 mm (XB4 / XB5): the contact block's place on the collar (left, center or right, seen from the front) sets when it switches. On a 2-position switch any N.O. block is open on the left and closed on the right. On a 3-position switch a left N.O. is closed only in the left position, a right N.O. only in the right position, and a center N.O. in both left and right. N.C. blocks do the opposite. Up to 3 blocks per collar. Block terminals: N.O. 3-4, N.C. 1-2.
30 mm (9001K / SK): blocks mount on side 1 or side 2 (from the locating notch). What each block does depends on the operator's cam. KA1 = 1 N.O. + 1 N.C., KA2 = N.O., KA3 = N.C., KA5 = N.C. late-opening (must be the last block on its side). Spring-return operators take one block per side.
Source: Schneider FAQ000283436 (22 mm contact configurations); Type K, KX and SK Selector Switch Guide and contact block “H” numbers (Digest, catalog 9001CT1103).