Use page 3 as a reference section for more information. Each step is accompanied by a reference to a page that is filled with useful information. They are widely available through ABB channel partners, hence the use of the term standard. Typical applications include pump, fan and constant torque use, such as conveyors. ABB standard drives are ideal in those situations where there is a need for simplicity to install, commission and use and where customizing or special product engineering is not required. Once you have selected the type code, the frame size column 5 can be used to determine the drives dimensions, shown on the next page.
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Thermal overload and short-circuit protection The drive protects itself and the input and motor cables against thermal overload when the cables are dimensioned according to the nominal current of the drive. No additional thermal protection devices are needed. If the drive is connected to multiple motors, a separate thermal overload switch or a circuit breaker must be used for protecting each cable and motor.
These devices may require a separate fuse to cut off the short-circuit current. The drive protects the motor cable and motor in a short-circuit situation when the motor cable is dimensioned according to the nominal current of the drive.
Input power cable AC line cable short-circuit protection Always protect the input cable with fuses. Size the fuses according to local safety regulations, appropriate input voltage and the rated current of the drive see chapter Technical data. When placed at the distribution board, standard IEC gG fuses or UL type T fuses will protect the input cable in short-circuit situations, restrict drive damage and prevent damage to adjoining equipment in case of a short circuit inside the drive.
Operating time of the fuses Check that the operating time of the fuse is below 0. The operating time depends on the fuse type, the supply network impedance and the cross- sectional area, material and length of the supply cable. For fuse ratings, see chapter Technical data. Fuses must be used with other circuit breakers. Contact your local ABB representative for approved breaker types and supply network characteristics. The protective characteristics of circuit breakers depend on the type, construction and settings of the breakers.
There are also limitations pertaining to the short-circuit capacity of the supply network. Planning electrical installation.
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