Semiconductor soft starter 3RW3 8.5 Assembly and connection 8.5.1 Assembly Snap-on mounting The soft starters 3RW30 are snapped onto 35 mm rails conforming to DIN EN 50 022 without the need for tools The starter is positioned against the top edge of the DIN rail and is pressed down until it snaps onto the bottom edge of the rail. Sizes S00 and S0 can be removed just as easily: the starters are pressed down so as to loosen the pull of the securing spring and the starter can be removed. In the case of sizes S2 and S3, this securing spring is relieved by a bracket that can be pulled on the underside of the starter using a screwdriver.
8.5.2 Connection Screw connection The electronic soft starters 3RW3 are available with SIGUT connection in conjunction with plus-minus POZIDRIV 2 screws Connection cross-sec- tions The following table lists the permitted cross-sections for the electronic soft starter 3RW30: Tabelle 8-16: Connection cross-sections, 3RW30/31 Rev. 08/99 8-35 3RW301. L1 L2 L3 A1/A2; NO/NC 3RW302. 3RW312. L1 L2 L3 3RW303. L1 L2 L3 3RW304.. L1 L2 L3 ∅ 5 ... 6 mm / PZ2 0.8 ... 1.2 Nm 7 to 10.3 LB.IN 2 ... 2.5 Nm 18 to 22 LB.IN ∅ 5 ... 6 mm / PZ2 3 ... 4.5 Nm 27 to 40 LB.IN min 22 4 4 ... 6 Nm 35 to 53 LB.IN 1 2 x 0.5 ... .1.5 mm² 2 x 0.75 ... 2.5 mm² 2 x 1 ... 2.5 mm² 2 x 2.5 ... 6 mm² 1 2 x 0.75 ...
16 mm² 1 2 x 2.5 ... 16 mm² 1 2 x 0.5 ... .2.5 mm² 2 x 1 ... 2.5 mm² 2 x 2.5 ... 6 mm² 1 2 x 0.75 ... 16 mm² 1 x 0.75 ... 25 mm² 1 2 x 2.5 ... 35 mm² 1 x 2.5 ... 50 mm² ---- ---- ---- 1 2 x 0.75 ... 25 mm² 1 x 0.75 ... 35 mm² 1 2 x 10 ... 50 mm² 1 x 10 ... 70 mm² AWG 2 x 18 to 14 2 x 14 to 10 AWG 2 x 18 to 3 1 x 18 to 2 AWG 2 x 10 to 1/0 1 x 10 to 2/0