Derating For Altitude; Fuses; Non- Ul Compliance - Danfoss VLT AutomationDrive FC 302 Instruction Manual

Specifications

11.4.2 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 11.7.
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.
Altitude Derating
Derating of output current versus altitude at T
frame sizes D, E and F.
I (%)
OUT
100
95
90
11 11
85
80
0
Figure 11.7 Altitude Derating
164
) should be derated in
out
- 3.3 K), 91% of the rated output
AMB, MAX
500 1000 1500 2000
Altitude (meters above sea level)*
Danfoss A/S © Rev. 2014-02-07 All rights reserved.
Instruction Manual

11.5 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.
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.
for
NOTICE!
AMB, MAX
The recommendations do not cover branch circuit
protection for UL.
Short-circuit protection
Danfoss recommends using the fuses/circuit breakers in
chapter 11.5.2 Fuse Tables to protect service personnel and
property in case of component breakdown in the
adjustable frequency drive.

11.5.1 Non- UL compliance

Non- UL compliance
2500 3000
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 11.7 Recommended Fuses for non-UL Applications
380–500 V type gG
380–500 V type gR
MG37A222