Fuses; Danfoss A/S © Rev. 04/2015 All Rights Reserved; Non- Ul Compliance - Danfoss VLT AutomationDrive FC 302 Installation Manual

Specifications
8.3.1 Derating for Altitude
The cooling capability of air is decreased at a lower air
pressure.
Below 3,300 ft [1000 m] altitude no derating is necessary
but above 3,300 ft [1000 m] the ambient temperature
(T ) or max. output current (I
AMB
accordance with Figure 8.14.
An alternative is to lower the ambient temperature at high
altitudes and thereby ensure 100% output current at high
altitudes. As an example of how to read the graph, the
situation at 6,600 ft [2 km] is elaborated. At a temperature
of 113°F [45°C] (T
current is available. At a temperature of 107°F [41.7°C],
100% of the rated output current is available.
8 8
Altitude Derating
Derating of output current versus altitude at T
frame sizes D, E and F.
I (%)
OUT
100
95
90
85
80
0 500
Figure 8.14 Altitude Derating

8.4 Fuses

Danfoss recommends using fuses and/or circuit breakers
on the supply side as protection in case of component
break-down inside the adjustable frequency drive (first
fault).
NOTICE!
Using fuses and/or circuit breakers ensures compliance
with IEC 60364 for CE or NEC 2009 for UL.
102
VLT
132–630 kW
) should be derated in
out
- 3.3 K), 91% of the rated output
AMB, MAX
1000 1500 2000 2500
Altitude (metres above sea level)*
Danfoss A/S © Rev. 04/2015 All rights reserved.
®
AutomationDrive FC 302 Low Harmonic Drive
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
overcurrent according to national/international regulations.
NOTICE!
The recommendations do not cover branch circuit
protection for UL.
Short-circuit protection
Danfoss recommends using the fuses/circuit breakers in to
protect service personnel and property in case of
component breakdown in the adjustable frequency drive.

8.4.1 Non- UL compliance

for
AMB, MAX
Non- UL compliance
If UL/cUL is not to be complied with, Danfoss recommends
using the following fuses, which ensures compliance with
EN50178:
P132–P200
P250–P400
Table 8.5 Recommended Fuses for non-UL Applications
3000
380–500 V type gG
380–500 V type gR
MG37A322