Fuse Specifications; Fuses; Recommendations; Ce Compliance - Danfoss VLT AutomationDrive FC 360 Quick Manual

Specifications

8.3 Fuse Specifications

8.3.1 Fuses

It is recommended to use fuses and/or circuit breakers on
the supply side as protection in case of component break-
down inside the frequency converter (first fault).
NOTICE
This is mandatory in order to ensure compliance
with IEC 60364 for CE or NEC 70 for UL.
WARNING
Personnel and property must be protected against the
consequence of component break-down internally in the
frequency converter.
Branch circuit protection
To protect the installation against electrical and fire hazard,
all branch circuits in an installation, switch gear, machines
etc., must be protected against short-circuit and over-
current according to national/international regulations.
8 8 NOTICE
The recommendations given do not cover
Branch circuit protection for UL.
Short-circuit protection
Danfoss recommends using the fuses/circuit breakers
mentioned below to protect service personnel and
property in case of component break-down in the
frequency converter.

8.3.2 Recommendations

WARNING
In case of malfunction, not following the recommen-
dation may result in personnel risk and damage to the
frequency converter and other equipment.
Table 8.4 and Table 8.5 list the recommended fuses and
circuit breakers which have been tested.
If fuses/circuit breakers according to recommendations are
chosen, possible damages on the frequency converter will
mainly be limited to damages inside the unit.
42
®
VLT AutomationDrive FC 360 Quick Guide

8.3.3 CE Compliance

Fuses or circuit breakers are mandatory to comply with IEC
60364. Danfoss recommend using a selection of the
following.
The fuses in Table 8.4 and Table 8.5 are suitable for use on
a circuit capable of delivering 100,000 Arms (symmetrical),
480 V depending on the frequency converter voltage
rating. With the proper fusing the frequency converter
short circuit current rating (SCCR) is 100,000 Arms.
Frame Size
Table 8.4 CE Fuse, 380-480 V, Frame Sizes J1-J7
The circuit breakers in Table 8.5 are suitable for use on a
circuit capable of delivering 35,000 Arms (symmetrical), 480
V depending on the frequency converter voltage rating.
With the proper fusing the frequency converter short
circuit current rating (SCCR) is 35,000 Arms.
Frame Size
Table 8.5 CE Circuit Breakers, 380-480 V, Frame Sizes J1-J7
®
MG06A302 - VLT is a registered Danfoss trademark
Power [kW]
0.37-1.1
J1 1.5
2.2
3.0
J2 4.0
5.5
J3 7.5
J4 11-15
18.5
J5
22
30
J6 37
45
55
J7
75
Power [kW]
0.37-2.2
J1
J2 3.0-5.5
J3 7.5
J4 11-15
J5 18.5-22
J6 30-45
J7 55-75
gG
10
25
32
50
80
160
250
EATON
Moller
PKZM0-16
NZMN-1-A-25
NZMN-1-A-32
NZMN-1-A-50
NZMN-1-A-80
NZMN-1-A-160
NZMN-1-A-250