Fuses - Danfoss VLT FC 300 Operating Instructions Manual

How to Install

3.3.13 Fuses

Branch circuit protection:
In order to protect the installation against electrical and
fire hazard, all branch circuits in an installation, switch
3 3 gear, machines etc., must be short-circuited and over-
current protected according to national/international
regulations.
Short-circuit protection:
The frequency converter must be protected against short-
circuit to avoid electrical or fire hazard. Danfoss
recommends using the fuses mentioned below to protect
service personnel and equipment in case of an internal
failure in the frequency converter. The frequency converter
provides full short-circuit protection in case of a short-
circuit on the motor output.
Over-current protection
Provide overload protection to avoid fire hazard due to
overheating of the cables in the installation. The frequency
converter is equipped with an internal over-current
Power size
FC 302
P250T5
P315T5
P355T5
P400T5
P450T5
P500T5
P560T5
P630T5
P710T5
P800T5
Table 3.3 Line Fuses, 380-500 V
Power size
FC 302
P355T7
P400T7
P500T7
P560T7
P630T7
P710T7
P800T7
P900T7
P1M0T7
P1M2T7
P1M4T7
Table 3.4 Line Fuses, 525-690 V
42
VLT ® Automation Drive FC 300 12-Pulse
Operating Instructions High Power
Frame Rating
Size Voltage (UL) Amperes
F8/F9 700 700
F8/F9 700 700
F8/F9 700 700
F8/F9 700 700
F10/F11 700 900
F10/F11 700 900
F10/F11 700 900
F10/F11 700 1500
F12/F13 700 1500
F12/F13 700 1500
Frame Rating
Size Voltage (UL) Amperes
F8/F9 700 630
F8/F9 700 630
F8/F9 700 630
F8/F9 700 630
F10/F11 700 900
F10/F11 700 900
F10/F11 700 900
F12/F13 700 1500
F12/F13 700 1500
F12/F13 700 1500
F14 700 1500
MG34Q202 - VLT
protection that can be used for upstream overload
protection (UL-applications excluded). See 4-18 Current
Limit. Moreover, fuses or circuit breakers can be used to
provide the over-current protection in the installation.
Over-current protection must always be carried out
according to national regulations.
UL compliance
The fuses below are suitable for use on a circuit capable of
delivering 100,000 Arms (symmetrical), 240 V, or 480 V, or
500 V, or 600 V depending on the frequency converter
voltage rating. With the proper fusing the frequency
converter Short Circuit Current Rating (SCCR) is 100,000
Arms.
Spare
Bussmann
Bussmann
P/N P/N
170M4017 176F8591
170M4017 176F8591
170M4017 176F8591
170M4017 176F8591
170M6013 176F8592
170M6013 176F8592
170M6013 176F8592
170M6018 176F8592
170M6018 176F9181
170M6018 176F9181
Spare
Bussmann
Bussmann
P/N P/N
170M4016 176F8335
170M4016 176F8335
170M4016 176F8335
170M4016 176F8335
170M6013 176F8592
170M6013 176F8592
170M6013 176F8592
170M6018 176F9181
170M6018 176F9181
170M6018 176F9181
170M6018 176F9181
®
is a registered Danfoss trademark
Est. Fuse Power Loss [W]
400 V 460 V
25 19
30 22
38 29
3500 2800
3940 4925
2625 2100
3940 4925
45 34
60 45
83 63
Est. Fuse Power Loss [W]
600 V 690 V
13 10
17 13
22 16
24 18
26 20
35 27
44 33
26 20
37 28
47 36
47 36