Cam switches Characteristics (p. 213) > VOLTMETER SWITCH, WITHOUT NEUTRAL L3 L2 L1 V No. of contacts 1-2 0 L1 X 3-4 5-6 L2 L3 X X X 7-8 X X 1 1 3 2 4 5 7 6 8 MINI CAM SWITCH - 10 A (AC21) 7 2 6 4 ø 16 or 22 single hole front mounting Cat. No. 30 aluminium plate and frame 1 network, 3-phase without neutral 1 voltmeter 4 contacts 0 L1L2 L3L1 L2L3 30 28 x 27 223527 62 25 Catalogue No. in bold: normally in stock at distribution outlets 192 223527