Cam switches Characteristics (p. 213) > 1 SPEED STARTER, FORWARD/REVERSE - 3 PHASE MOTOR (continued) PR 17 - 20 A (AC21) Cat. No. Enclosure Designation Black small handle 64 aluminium plate P= 7.5 kW in 400 V 10 contacts ∆ Y 0 Y ∆ PR17 9153 C8 BCQ3 SZ13GXQ SZ13GXQ 22 120 x 96 Ø28 101 26 PR 21 - 25 A (AC21) 2-screw panel mount - interval: 30 mm Grey/black small handle 48 aluminium plate and frame P= 7.5 kW in 400 V 10 contacts TZ13GQ1 22 48 x 50 Ø28 81 32 173 ∆ Y 0 Y ∆ Cat. No. Designation PR21 9153 C8 E Q48PN TZ13GQ1