Baldor MicroFlex, Installation Manual

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3-6 Basic Installation MN1919
3.2.3 Derating characteristic - 1A model
The 1A model can be operated at maximum rated current at 55°C without any additional
cooling. The output current does not need to be derated. The overload limit is 2A.
3.2.4 Derating characteristic - 3A model
The following derating characteristics are for model FMH2A 03 TR-EN23.
0
1
2
3
30 35 40 45 50 55
Ambient temperature (°C)
R
at
ed
out
put
cur
rr
ent
(A
rm
s
)
Single-phase AC supply
Natural cooling
Natural cooling
0
1
2
3
30 35 40 45 50 55
Ambient temperature (°C)
Three-phase AC supply
Notes:
Load power factor = 0.75.
Overload limit for model FMH2A03TR-EN23 is 6A.
R
at
ed
out
put
cur
rr
ent
(A
rm
s
)
1m/s forced air
1m/s forced air