LEESON SCR Thyristor Motor Control - Manual (Page 17)

11 Installation SPEEDMASTER™ OPERATION MANUAL
• Use 16–20 AWG wire for speed adjust potentiometer wiring.
Use 14–16 AWG wire for AC line (L1, L2) and motor (A1
and A2) wiring.
Warning
Do not install, remove, or rewire this equipment with power
applied. Failure to heed this warning may result in fire,
explosion, or serious injury.
Circuit potentials are at 115 VAC or 230 VAC above ground.
To prevent the risk of injury or fatality, avoid direct contact
with the printed circuit board or with circuit elements.
Do not disconnect any of the motor leads from the drive
unless power is removed or the drive is disabled. Opening
any one motor lead may destroy the drive.
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Wiring