Input Cable Fuses; Cable Entries - ABB ACS800-U4 Hardware Manual

Input cable fuses

The recommended fuses are for branch circuit protection per NEC. Check that the
operating time of the fuse is below 0.5 seconds and the fuses are of the "non-
time delay" type . The operating time depends on the supply network impedance
and the cross-sectional area, material and length of the cable. See also Electrical
installation planning /
Note 1: In multicable installations, install only one fuse per phase (not one fuse per conductor).
Note 2: Input cable sizing is based on NEC Table 310-16 for copper wires, 75 °C (167 °F) wire
insulation at 30 °C (86 °F) ambient temperature, located in one raceway. For other conditions,
dimension the cables according to local safety regulations, appropriate input voltage and the load
current of the drive. You can choose a thicker cable but the fuses must be rated according to the table
(bigger fuses must not be used).
Note 3: Fuses from other manufacturers can be used if they meet the ratings.
ACS800-U4 type
Three-phase supply voltage 380 V, 400 V, 415 V, 440 V, 460 V, 480 V or 500 V
-0170-5
-0210-5
-0260-5
-0320-5
-0400-5
-0440-5
-0490-5
-0550-5
-0610-5

Cable Entries

Input, motor and brake resistor cable terminal sizes (per phase) and tightening
torques are given below . One-hole 1/2 inch diameter cable lugs can be used.
Frame
size
Max. cable
kcmil/AWG
R7 2x250 MCM
R8 3x700 MCM
Thermal overload and short-circuit
Cable *
Cu (kcmil/AWG)
300MCM
400MCM
2x250MCM
2x350MCM
2x500MCM
3x400MCM
3x500MCM
3x600MCM
3x700MCM
U1, V1, W1, U2, V2, W2, UDC+/R+, UDC-, R- Earthing PE
Screw
1/2
1/2
A V Manufacturer
250 600 Bussmann
300 600 Bussmann
400 600 Bussmann
500 600 Bussmann
600 600 Bussmann
800 600 Bussmann
800 600 Bussmann
800 600 Bussmann
900 600 Bussmann
Tightening torque
lbf ft
37...55
37...55
protection.
Fuse
Type
JJS-250
JJS-300
JJS-400
JJS-500
JJS-600
KTU-800/JJS-800
KTU-800/JJS-800
KTU-800/JJS-800
KTU-900
PDM code: 00096931-B
Screw Tightening torque
3/8 22...32
3/8 22...32
Technical data
97
UL class
T
T
T
T
T
L/T
L/T
L/T
L
lbf ft