Danfoss iC7 Series Design Guide

Table 9: Liquid-cooled Input and Output Filters
Product Current at
690 V AC [A]
Nominal flow
rate with
water [l/min]
Nominal flow
rate with
30% glycol [l/
min]
Nominal flow
rate with
50% glycol [l/
min]
Maximum
flow rate [l/
min]
Liquid
volume per
element [l]
LC Filter for AFE/GC OF7Z1 380 8.0 10.4 12.0 12.8 0.70
LC Filter for AFE/GC OF7Z1 760 11.0 14.3 16.5 17.6 1.25
LCL Filter for AFE/GC OF7Z3 400 15.5 20.2 23.3 24.8 0.90
LCL Filter for AFE/GC OF7Z3 800 18.5 24.1 27.8 29.6 1.25
L Filter OF7Z5 400 7.5 9.8 11.3 12.0 0.20
L Filter OF7Z5 1000 7.5 9.8 11.3 12.0 0.20
L Filter OF7Z5 1640 8.5 11.1 12.8 13.6 0.60
dU/dt Filter OF7U1 416 18.5 24.1 27.8 29.6 0.68
dU/dt Filter OF7U1 820 20.5 26.7 30.8 32.8 1.34
dU/dt and CM Filter OF7U2 416 18.5 24.1 27.8 29.6 0.68
Sine-wave Filter OF7S1 416 8.0 10.4 12.0 12.8 0.70
Sine-wave Filter OF7S1 820 11.0 14.3 16.5 17.6 1.25
DC Filter OF7D1 570 6.7 8.7 10.1 10.7 0.70
DC Filter OF7D1 1200 11.0 14.3 16.5 17.6 1.25
6.4.3.1 Flow Rates in Parallel Power Units
In system modules with 2 parallel power units and a filter (IR12L/AR12L/DR12L), the flow rate of the coolant is not divided equally
between cooling channels 1 and 2. The difference in flow rate between the cooling channels is significant, but normal behavior. There is
a difference in flow rate, because the filter is connected to the inlet of channel 2 and outlet of channel 1.
The following tables show coolant flow rates measured from the inlet channels of IR12L and AR12L modules.
PU1
PU2
Filter
Channel 1 Channel 2
e30bl197.10
Figure 23: Coolant Flow in Parallel Power Units
42 | Danfoss Drives Oy © 2024.03 AJ475942178716en-000101 / 172K2848A
Design Guide | iC7 Series Liquid-cooled System Modules

Danfoss iC7 Series Specifications

General

Brand	Danfoss
Model	iC7 Series
Category	Media Converter
Language	English