OEM
Fuse options
VLT Model
Bussmann PN
Siba PN
Ferraz-Shawmut European PN
Ferraz-Shawmut North American PN
N75k T7
170M2616
20 610 31.160
6,9URD30D08A0160
A070URD30KI0160
N90k T7
170M2619
20 610 31.315
6,9URD31D08A0315
A070URD31KI0315
N110 T7
170M2619
20 610 31.315
6,9URD31D08A0315
A070URD31KI0315
N132 T7
170M2619
20 610 31.315
6,9URD31D08A0315
A070URD31KI0315
N160 T7
170M2619
20 610 31.315
6,9URD31D08A0315
A070URD31KI0315
N200 T7
170M4015
20 620 31.550
6,9URD32D08A0550
A070URD32KI0550
N250 T7
170M4015
20 620 31.550
6,9URD32D08A0550
A070URD32KI0550
N315 T7
170M4015
20 620 31.550
6,9URD32D08A0550
A070URD32KI0550
N400 T7
170M4015
20 620 31.550
6,9URD32D08A0550
A070URD32KI0550
Table 10.7 Fuse Options for 525–690 V Adjustable Frequency Drives
For UL compliance, for units supplied without a contactor-only option, the Bussmann 170M series fuses must be used.
10.3.3 Short Circuit Current Rating (SCCR)
The Short Circuit Current Rating (SCCR) of the adjustable
frequency drives is 100,000 amps at all voltages (380–690
V).
If the adjustable frequency drive is supplied with a line
power disconnect, the SCCR of the adjustable frequency
drive is 100,000 amps at all voltages (380–690 V).
10.3.4 Connection Tightening Torques
When tightening all electrical connections, it is very
important to tighten with the correct torque. Too low or
too high torque results in a bad electrical connection. Use
a torque wrench to ensure correct torque. Always use a
torque wrench to tighten the bolts.
Frame Size
Terminal
Torque
Bolt size
D1h/D3h/D5h/
D6h
Line power
Motor
Load sharing
Regen
19–40 Nm
(168–354 in-
lbs)
M10
Ground
Brake
8.5–20.5 Nm
(75–181 in-lbs)
M8
D2h/D4h/D7h/
D8h
Line power
Motor
Regen
Load sharing
Ground
19–40 Nm
(168–354 in-
lbs)
M10
Brake
8.5–20.5 Nm
(75–181 in-lbs)
M8
Table 10.8 Torque for Terminals
Specifications
VLT
®
Refrigeration Drive Instruction Manual
10-10
MG16J122 - VLT
®
is a registered Danfoss trademark
10
10
