Cam switches Characteristics (p. 213) > AMMETER SWITCH, WITHOUT CT No. of contacts 1-2 3-4 5-6 0 L1 L2 X X X X X L3 L2 L1 L3 A X 7-8 X X 9 - 10 X X 11 - 12 X X 13 - 14 X X 15 - 16 X X 17 - 18 X X 1 3 2 4 5 7 6 8 9 11 10 12 13 15 14 16 5 4 3 2 11 12 15 14 17 18 PR 12 - 16 A (AC21) 2-screw panel mount - interval: 30 mm Grey/black small handle 48 aluminium plate and frame 1 network, 3 wires, 1 ammeter 9 contacts 0 L1 L3 Cat. No. Designation PR12 8164 A4 E Q48PN NY14AQ1 L2 NY14AQ1 22 48 42 x 40 Ø28 76 6 26 PR 12 - 16 A (AC21) Grey/black small handle 48 aluminium plate and frame 1 network, 3 wires, 1 ammeter 9 contacts 0 L1 L3 L2 NY14AX80 22 48 42 x 40 Ø28 91 Cat. No. ø 22 single hole front mounting 6 26 190 Designation PR12 8164 A4 E N48MD50 NY14AX80