North America; Other Regions; Selecting The Main Contactor (Breaker); Cabinets - ABB ACS880 Electrical Planning Instructions

12 Electrical planning guidelines
• switch-disconnector, with or without fuses, in accordance with IEC 60947-3, utilization
category AC-23B or DC-23B
• 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)
• a circuit-breaker suitable for isolation in accordance with IEC 60947-2.

North America

Installations must meet the requirements of UL (UL 508C) and/or CSA C22.2 No. 14 and
be compliant with NFPA 70 (NEC) and/or Canadian Electrical Code (CE) along with state
and local codes for your location and application. (NFPA 70 (NEC) = National Fire Protection
Association 70 (National Electric Code).

Other regions

The disconnecting device must conform to the applicable local safety regulations.

Selecting the main contactor (breaker)

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Cabinets

You can order the drive with a main contactor (option +F250). For North America, you can
also order a molded case circuit breaker (option +F289) instead of the contactor.

Modules

Obey these guidelines when you select a customer-defined main contactor:
• Dimension the contactor according to the nominal voltage and current of the drive. Also
consider the environmental conditions such as ambient temperature.
• Select contactor with utilization category AC-1 (number of operations under load)
according to IEC 60947-4, Low-voltage switch gear and control gear.
• Consider the application life time requirements.

Examining the compatibility of the motor and drive

Use asynchronous AC induction motors, permanent magnet synchronous motors, AC
induction servomotors or ABB synchronous reluctance motors (SynRM motors) with the
drive.
Select the motor size and drive type from the rating table on basis of the AC line voltage
and motor load. You can find the rating table in the appropriate drive or inverter unit hardware
manual. You can also use the DriveSize PC tool.
Make sure that the motor withstands the maximum peak voltage in the motor terminals. See
Requirements table (page
in drive systems, see
13). For basics of protecting the motor insulation and bearings
Protecting the motor insulation and bearings (page 13).