Planning the electrical installation
57
Planning the electrical installation
What this chapter contains
This chapter contains the instructions that you must follow when selecting the motor,
cables, protections, cable routing and way of operation for the drive system.
Note: The installation must always be designed and made according to applicable
local laws and regulations. ABB does not assume any liability whatsoever for any
installation which breaches the local laws and/or other regulations. Furthermore, if
the recommendations given by ABB are not followed, the drive may experience
problems that the warranty does not cover.
Selecting the supply disconnecting device (disconnecting means)
Install a hand-operated input disconnecting device (disconnecting means) between
the AC power source and the drive. The disconnecting device must be of a type that
can be locked to the open position for installation and maintenance work.
European Union
To meet the European Union Directives, according to standard EN 60204-1, Safety
of Machinery, the disconnecting device must be one of the following types:
• switch-disconnector of utilization category AC-23B (EN 60947-3)
• disconnector that has an auxiliary contact that in all cases causes switching
devices to break the load circuit before the opening of the main contacts of the
disconnector (EN 60947-3)
• circuit breaker suitable for isolation in accordance with EN 60947-2.
Other regions
The disconnecting device must conform to the applicable safety regulations.
Selecting and dimensioning the main contactor
If a main contactor is used, its utilization category (number of operations under load)
must be AC-1 according to IEC 60947-4, Low-voltage switchgear and controlgear.
Dimension the main contactor according to the nominal voltage and current of the
drive.
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