36 Planning the electrical installationSelecting the supply disconnecting device (disconnectingmeans)Install a hand-operated supply disconnecting device (disconnecting means) betweenthe AC power source and the drive. The disconnecting device must be of a type thatcan be locked to the open position for installation and maintenance work. European unionTo meet the European Union Directives, according to standard EN 60204-1, Safety ofMachinery, the disconnecting device must be one of the following types:• a switch-disconnector of utilization category AC-23B (EN 60947-3)• a disconnector having an auxiliary contact that in all cases causes switchingdevices to break the load circuit before the opening of the main contacts of thedisconnector (EN 60947-3)• a circuit breaker suitable for isolation in accordance with EN 60947-2. North AmericaThe ACS320 drive does not include a disconnect device. A means to disconnectinput power must be installed between the AC power source and the ACS320 drive.This branch circuit protection must:• be sized to conform to applicable safety regulations, including but not limited to,both National and local electrical codes.• be locked in an open position during installation and maintenance work.The disconnect device must not be used to control the motor. Instead use the controlpanel, or commands to the I/O terminals for motor control. Other regionsThe disconnecting device must conform to the applicable safety regulations.Checking the compatibility of the motor and driveCheck that the 3-phase AC induction motor and the drive are compatible according tothe rating table in section Ratings on page 384 or in section Definitions on page 385.The table lists the typical motor power for each drive type.
