Derating; Temperature Derating; Altitude Derating; Fuses - ABB ACS800 Hardware Manual

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Derating

The load capacity (current and power) decreases if the installation site altitude exceeds 1000 metres
(3300 ft), or if the ambient temperature exceeds 40 °C (104 °F).

Temperature derating

In the temperature range +40 °C (+104 °F) to +50 °C (+122 °F) the rated output current is decreased
1% for every additional 1 °C (1.8 °F). The output current is calculated by multiplying the current given in
the rating table by the derating factor.
Example If the ambient temperature is 50 °C (+122 °F), the derating factor is 100% - 1
90% or 0.90. The output current is then 0.90 · I

Altitude derating

In altitudes from 1000 to 4000 m (3300 to 13123 ft) above sea level, the derating is 1% for every 100 m
(328 ft). For a more accurate derating, use the DriveSize PC tool. See
metres (6562 feet)

Fuses

gG and aR fuses for protection against short-circuit in the input power cable or drive
are listed below. Either fuse type may be used if it operates rapidly enough.

Frame sizes R2 to R4

Check from the fuse time-current curve that the operating time of the fuse is
below 0.5 seconds. The operating time depends on the supply network impedance
and the cross-sectional area and length of the supply cable. The short-circuit current
can be calculated as shown below in section
Note 1: See also Planning the electrical installation:
UL recognized fuses, see
Note 2: In multicable installations, install only one fuse per phase (not one fuse per conductor).
Note 3: Larger fuses than the recommended ones must not be used.
Note 4: Fuses from other manufacturers can be used if they meet the ratings and the melting curve of
the fuse does not exceed the melting curve of the fuse mentioned in the table.
ACS800-01
size
Three-phase supply voltage 208 V, 220 V, 230 V or 240 V
-0001-2
-0002-2
-0003-2
-0004-2
-0005-2
-0006-2
-0009-2
-0011-2
-0016-2
-0020-2
Technical data
on page 49.
NEMA data on page 102.
Input
current
A A
4.4 10 483
5.2 10 483
6.7 10 483
9.3 16 993
12 16 993
16 20 1620
23 25 3100
31 40 9140
40 50 15400
51 63 21300
or 0.90 · I .
2N 2hd
Frame sizes R5 and
Thermal overload and short-circuit
Fuse
2
s V Manufacturer
500 ABB Control
500 ABB Control
500 ABB Control
500 ABB Control
500 ABB Control
500 ABB Control
500 ABB Control
500 ABB Control
500 ABB Control
500 ABB Control
%
· 10 °C =
°C
Installation sites above 2000
R6.
protection. For
Type IEC size
OFAF000H10 000
OFAF000H10 000
OFAF000H10 000
OFAF000H16 000
OFAF000H16 000
OFAF000H20 000
OFAF000H25 000
OFAF000H40 000
OFAF000H50 000
OFAF000H63 000