Danfoss Vacon NXP Guide

Design Guide
DC Filters
VACON® NXP DC/DC Converter
drives.danfoss.com

1
1.1
1.2
1.3
2
2.1
2.2
2.3
3
3.1
3.2
3.3
3.4
4
4.1
4.2
4.3
5
5.1
5.2
5.3
6
6.1
6.2
7
7.1
7.2
7.3
7.4
7.5
7.6
Contents
Introduction 4
Purpose of this Design Guide 4
Additional Resources 4
Version History 4
Safety 5
Safety Notice 5
Safety Symbols 5
Warnings 5
Product Overview 7
DC Filter for DC/DC Converter 7
Voltage and Current Range 7
Cooling 7
DC Filter Types 7
Selection 9
Selecting the DC Filter 9
DC Filter Selection, Air-cooling 9
DC Filter Selection, Liquid-cooling 11
Installation Guidelines 13
Cabling 13
Thermal Protection 13
Mounting 14
Maintenance 16
Preventive Maintenance Recommendations 16
Recommended Disposal 16
Specifications 17
General Specifications 17
Environmental Data 17
Cooling System Requirements 18
Technical Data 18
Dimensions 20
Terminal and Torque Specifications 23
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Contents
DC Filters
Design Guide

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1 Introduction
1.1 Purpose of this Design Guide
This design guide is intended for qualified personnel, such as:
Project and systems engineers.
Design consultants.
Application and product specialists.
The design guide provides technical information for the DC filters used in VACON® NXP DC/DC Converter applications. Its purpose
is to provide design considerations and planning data for integration of the device into a system. It caters for the selection of the
filters for the application in a diversity of installations. Reviewing the detailed product information in the design stage enables de-
veloping a well-conceived system with optimal functionality and efficiency.
The filter range is designed for typical Energy Storage systems which is the main application area for DC/DC converters.
1.2 Additional Resources
Other resources are available to understand installation, programming, operation, and options.
The VACON® NXP DC/DC Converter operating guide provides information about the installation and operation of the VACON®
NXP DC/DC Converter application.
The VACON® NXP DC/DC Converter application guide provides greater detail on how to work with the application software and
how to set the parameters of the AC drive modules.
VACON® NXP Common DC Bus and VACON® NXP Liquid-cooled Common DC Bus user manuals provide detailed information for
the installation, commissioning, and operation of the AC drive modules.
The operating and installation guides for VACON®options give detailed information about specific drive options.
Supplementary publications and manuals are available from Danfoss. See www.danfoss.com for listings.
1.3 Version History
This design guide is regularly reviewed and updated. All suggestions for improvement are welcome.
The original language of this design guide is English.
Table 1: VACON® NXP DC/DC Converter DC Filters Design Guide Version History
Version
Remarks
A
First release
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Introduction
DC Filters
Design Guide

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2 Safety
2.1 Safety Notice
These instructions are intended for the use of personnel who are experienced in the installation, operation, and maintenance of
power quality filters. Because of the high voltages required by the application, the personnel involved in the installation, operation,
and maintenance of these filters must be aware of the necessary safety precautions for this type of equipment. Carefully read the
instructions in this manual before installing the DC filter.
The Danfoss DC filter has been run through several demanding factory tests before the delivery. Carefully inspect the package for
any damage that may have occurred during the transportation. Follow the instructions for unpacking the DC filter and carefully
inspect it for any signs of possible damage. If the installation of this equipment is going to be in the future, cover and store the filter
in a clean and dry location.
When the DC Filter has been in storage, before applying power to the filter, make sure that there is no condensation on the internal
components of the filter.
2.2 Safety Symbols
The following symbols are used in this guide:
DANGER
Indicates a hazardous situation which, if not avoided, will result in death or serious injury.
WARNING
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE
Indicates information considered important, but not hazard-related (for example, messages relating to property damage).
2.3 Warnings
DANGER
SHOCK HAZARD FROM TERMINALS
The terminals and components of the filter can be live 5 minutes after the filter is disconnected from the mains. Touching any of
the exposed power connectors during operation or while voltage is present can cause death or serious injury.
Do not touch the terminals when the filter is connected to mains. Before working on the DC filter, wait at least the voltage
discharge time stated in the manual for the corresponding DC/DC converter. Use a measuring device to make sure that there
is no voltage.
CAUTION
DAMAGE FROM INSUFFICIENT GROUNDING
Insufficient grounding can damage the DC filter.
The DC filter must be grounded before switching on the power. To ground the filter, use the terminal marked with the PE
symbol. Make sure that the ground connection is clean and all varnish is removed.
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Safety
DC Filters
Design Guide

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CAUTION
LIFTING HEAVY LOADS
The center of gravity of the unit can be in an unexpected location. Unbalanced loads can fall over or tilt unexpectedly during
lifting and transport. Falling loads can cause death, serious injury, or damage to the equipment.
Take proper lifting precautions:
Never walk under suspended loads.
Wear personal protective equipment.
Observe the weight of the unit and make sure that proper lifting equipment is used.
Before lifting the load, check the center of gravity.
Use the lifting holes to lift the filter. Never use the electrical connectors or terminals of the filter for lifting purposes.
CAUTION
BURN HAZARD FROM HOT SURFACES
The filter surface turns hot during operation.
Wait for the filter to cool down before touching it.
NOTICE
DAMAGE FROM LOOSE CONNECTIONS
Loose or improperly secured connections can damage the filter or lead to decreased performance.
Only a qualified electrician is allowed to perform the electrical installation of the DC filter.
NOTICE
ELECTROMAGNETIC INTERFERENCE
Noise and EMI from the cables can cause malfunctions in the installation.
To reduce noise and EMI, and to prevent malfunctions in the installation, use shielded cables:
Between the DC/DC converter output and DC filter input
Between DC-filter output and Energy storage input
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Safety
DC Filters
Design Guide

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3 Product Overview
3.1 DC Filter for DC/DC Converter
The DC filter is used as an energy storage and damping element between the DC source and the DC/DC converter.
The filter inductor stores energy and reduces the di/dt slope of the load current. The stored energy is released back to the system
with decreasing current.
The DC filter reduces the harmonic content of the load current and keeps it at an acceptable level. The amount of ripple current
allowed in the system depends on the type of energy storage.
Sometimes the DC filter consists only of an inductor. In some applications, capacitors are needed, and an LC filter is used.
e30bj349.10
DC+
DC-
Battery
DC Filter
DC/DC Converter
+
-
L
1
C
DC
Illustration 1: Example DC/DC Converter Application with a DC Filter
3.2 Voltage and Current Range
The DC filter is designed for 380–690 V AC voltage systems. The voltage span across the DC filter is typically high. The difference
between input and output voltage can be as high as 1100 V, that is 1150 V D input and 50 V DC output. Due to the high voltage
difference, a high inductance value is required to guarantee proper functionality in all operation points. The DC filters are designed
according to a 5 kHz switching frequency.
The current range of the DC filters is 10–1150 A.
3.3 Cooling
The cooling methods used for DC filters:
Natural convection (AN)
Forced air cooling (AF)
Liquid cooling
For the cooling method used for each filter type, see 7.4 Technical Data.
3.4 DC Filter Types
An L-type inductor is used as default and the same inductor can be used as the inductor part for an LC filter. A typical filter solution
consists of three 1-phase inductors which are installed at the outputs of the individual phases of the DC/DC converter.
Note: The type codes are for filter assemblies, which include three 1-phase inductors. For example, LDC-0092-5-0-APt consist of 3 x
92 A, 750 V DC inductors.
Example
The type code can have this format, for example:
LDC-0092-5-0-APtX
Table 2: Type Code Description
Code
Description
LDC
Filter type
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Product Overview
DC Filters
Design Guide

Code
Description
LDC = DC inductor
0092
Maximum current [A]
5
Nominal voltage
2 = 200 V
5 = 500 V
6 = 690 V
0
Protection rating
0 = IP00
2 = IP21
5 = IP54
A
Cooling method
A = Natural convection
B = Forced air cooling
C = Liquid cooling
Pt
Temperature measurement type
Pt = Pt100 temperature sensor
Tr = Thermal relay
X
Reserved for variants
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Product Overview
DC Filters
Design Guide

4 Selection
4.1 Selecting the DC Filter
Two operating conditions are given for filter selection in the tables, one at high voltage and another at low voltage. The high volt-
age refers to the maximum storage voltage in the application. The low voltage is the voltage level at 50% duty cycle of the drive,
which is thermally the worst case condition for the DC filter.
The filter selection can differ depending on the energy storage requirements. The selections in the tables are recommendations.
The selection is typically made according to the maximum output current at low voltage.
4.2 DC Filter Selection, Air-cooling
Table 3: DC Filter Selection for Air-cooled 500 V Drives According to Energy Storage Requirements
Drive enclo-
sure size
Drive type
High Voltage @ 750 V DC, fs= 5 kHz
Low Voltage @ max current, fs= 5 kHz
Iout nominal [A]
Filter selection
Iout max [A]
Filter selection
FR4
NXI_0004 5
< 4.8
LDC-0010-6-0-Axx
8
LDC-0010-6-0-Axx
NXI_0009 5
< 10
18
NXI_0012 5
< 13.4
24
FR6
NXI_0016
< 18
LDC-0010-6-0-Axx
32
LDC-0020-5-0-Axx
NXI_0022 5
< 26
44
NXI_0031 5
< 35
LDC-0020-5-0-Axx
62
NXI_0038 5
< 43
76
LDC-0030-6-0-Axx
NXI_0045 5
< 51
90
FR7
NXI_0061 5
< 69
LDC-0030-6-0-Axx
122
LDC-0050-6-0-Axx
NXI_0072 5
< 82
144
NXI_0087 5
< 100
LDC-0050-6-0-Axx
174
LDC-0092-5-0-Axx
NXI_0105 5
< 121
210
FR8
NXI_0140 5
< 161
LDC-0092-5-0-Axx
280
FI9
NXI_0168 5
< 196
336
LDC-0170-6-0-Axx
NXI_0205 5
< 239
410
NXI_0261 5
< 304
LDC-0170-6-0-Axx
500
NXI_0300 5
< 350
500
FI10
NXI_0385 5
< 454
770
LDC-0270-5-0-Axx
NXI_0460 5
< 542
LDC-0270-5-0-Axx
920
LDC-0420-5-0-Axx or LDC-0400-6-0-Bxx
NXI_0520 5
< 613
930
FI12
NXI_0590 5
< 695
2 x LDC-0170-6-0-Axx
1180
2 x LDC-0270-5-0-Axx
NXI_0650 5
< 766
1300
NXI_0730 5
< 870
1460
NXI_0820 5
< 977
1640
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Selection
DC Filters
Design Guide

Drive enclo-
sure size
Drive type
High Voltage @ 750 V DC, fs= 5 kHz
Low Voltage @ max current, fs= 5 kHz
Iout nominal [A]
Filter selection
Iout max [A]
Filter selection
NXI_0920 5
< 1096
2 x LDC-0270-5-0-Axx
1750
2 x LDC-0400-6-0-Bxx
NXI_1030 5
< 1227
1750
FI13
NXI_1150 5
< 1370
LDC-0540-6-0-Bxx
2300
LDC-0900-5-0-Bxx
NXI_1300 5
< 1549
2550
NXI_1450 5
< 1727
LDC-0900-5-0-Bxx
2550
FI14
NXI_1770 5
< 2109
2 x LDC-0400-6-0-Bxx
3540
2 x LDC-0900-5-0-Bxx
NXI_2150 5
< 2561
2 x LDC-0540-6-0-Bxx
4300
NXI_2700 5
< 3217
5000
Table 4: DC Filter Selection for Air-cooled 690 V Drives According to Energy Storage Requirements
Drive enclosure size
Drive type
High Voltage @ 1025 V DC, fs= 5 kHz
Low Voltage @ max current, fs= 5 kHz
Iout nominal [A]
Filter selection
Iout max [A]
Filter selection
FR6
NXI_0010 6
< 11.1
LDC-0010-6-0-Axx
14.6
LDC-0010-6-0-Axx
NXI_0013 6
< 14.6
19
NXI_0018 6
< 20.3
26.3
NXI_0022 6
< 25
32
NXI_0027 6
< 31
39
LDC-0020-5-0-Axx
NXI_0034 6
< 39
LDC-0020-5-0-Axx
49
FR7
NXI_0041 6
< 47
60
NXI_0052 6
< 60
62
FR8
NXI_0062 6
< 71
LDC-0030-6-0-Axx
90
LDC-0030-6-0-Axx
NXI_0080 6
< 92
117
LDC-0050-6-0-Axx
NXI_0100 6
< 117
LDC-0050-6-0-Axx
135
FI9
NXI_0125 6
< 146
183
LDC-0092-6-0-Axx
NXI_0144 6
< 168
LDC-0092-6-0-Axx
210
NXI_0170 6
< 198
248
NXI_0208 6
< 245
250
FI10
NXI_0261 6
< 308
LDC-0170-6-0-Axx
382
LDC-0170-6-0-Axx
NXI_0325 6
< 383
475
NXI_0385 6
< 454
490
NXI_0416 6
< 490
490
FI12
NXI_0460 6
< 548
2 x LDC-0092-6-0-Axx
673
2 x LDC-0170-6-0-Axx
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Selection
DC Filters
Design Guide

Drive enclosure size
Drive type
High Voltage @ 1025 V DC, fs= 5 kHz
Low Voltage @ max current, fs= 5 kHz
Iout nominal [A]
Filter selection
Iout max [A]
Filter selection
NXI_0502 6
< 598
2 x LDC-0170-6-0-Axx
734
NXI_0590 6
< 703
863
NXI_0650 6
< 775
951
NXI_0750 6
< 894
977
NXI_0820 6
< 977
977
FI13
NXI_0920 6
< 1102
LDC-0400-6-0-Bxx
1346
LDC-0540-6-0-Bxx
NXI_1030 6
< 1234
LDC-0540-6-0-Bxx
1414
NXI_1180 6
< 1414
1414
FI14
NXI_1500 6
< 1797
2 x LDC-0400-6-0-Bxx
2196
2 x LDC-0400-6-0-Bxx
NXI_1900 6
< 2276
2675
2 x LDC-0540-6-0-Bxx
NXI_2250 6
< 2696
2 x LDC-0540-6-0-Bxx
2675
4.3 DC Filter Selection, Liquid-cooling
Table 5: DC Filter Selection for Liquid-cooled 500 V Drives According to Energy Storage Requirements
Drive enclosure size
Drive type
High Voltage @ 750 V DC, fs= 5 kHz
Low Voltage @ max current, fs= 5 kHz
Iout nominal [A]
Filter selection
Iout max [A]
Filter selection
CH5
NXP_0168 5
< 195
LDC-0160-6-0-Cxx
336
LDC-0160-6-0-Cxx
NXP_0205 5
< 238
410
NXP_0261 5
< 306
522
LDC-0340-6-0-Cxx
CH61
NXP_0300 5
< 352
600
NXP_0385 5
< 456
770
CH62
NXP_0460 5
< 545
LDC-0340-6-0-Cxx
920
NXP_0520 5
< 616
1040
NXP_0590 5
< 699
1180
LDC-0700-6-0-Cxx
NXP_0650 5
< 770
1300
NXP_0730 5
< 865
1460
CH63
NXP_0820 5
< 972
1640
NXP_0920 5
< 1090
LDC-0700-6-0-Cxx
1840
NXP_1030 5
< 1221
2060
NXP_1150 5
< 1378
2200
CH64
NXP_1370 5
< 1642
2740
LDC-1150-6-0-Cxx
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Selection
DC Filters
Design Guide

Drive enclosure size
Drive type
High Voltage @ 750 V DC, fs= 5 kHz
Low Voltage @ max current, fs= 5 kHz
Iout nominal [A]
Filter selection
Iout max [A]
Filter selection
NXP_1640 5
< 1965
3280
NXP_2060 5
< 2469
LDC-1150-6-0-Cxx
4120
2 x LDC-0700-6-0-Cxx
NXP_2300 5
< 2756
4200
Table 6: DC Filter Selection for Liquid-cooled 690 V Drives According to Energy Storage Requirements
Enclosure size
Drive
High Voltage @ 1025 V DC, fs= 5 kHz
Low Voltage @ max current, fs= 5 kHz
Iout nominal [A]
Filter selection
Iout max [A]
Filter selection
CH61
NXP_0170 6
< 199
LDC-0160-6-0-Cxx
340
LDC-0160-6-0-Cxx
NXP_0208 6
< 244
416
NXP_0261 6
< 309
500
CH62
NXP_0325 6
< 385
650
LDC-0340-6-0-Cxx
NXP_0385 6
< 456
770
NXP_0416 6
< 493
832
NXP_0460 6
< 545
LDC-0340-6-0-Cxx
920
NXP_0502 6
< 595
975
CH63
NXP_0590 6
< 699
1180
LDC-0700-6-0-Cxx
NXP_0650 6
< 770
1300
NXP_0750 6
< 889
1500
CH64
NXP_0820 6
< 972
1640
NXP_0920 6
< 1090
LDC-0700-6-0-Cxx
1840
NXP_1030 6
< 1221
2060
NXP_1180 6
< 1414
2360
LDC-1150-6-0-Cxx
NXP_1300 6
< 1558
2600
NXP_1500 6
< 1798
3000
NXP_1700 6
< 2040
3400
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Selection
DC Filters
Design Guide

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5 Installation Guidelines
5.1 Cabling
The DC filter is connected between the DC/DC converter and the DC source. Three L-type inductors are required for a typical DC/DC
converter application. The order code for the listed L-type DC filters includes three 1-phase inductors.
For EMI reasons, keep the cable length between the DC source and DC/DC converter as short as possible. Sometimes, the parasitic
components of the source and cable can resonate with the DC filter inductors, causing instability in the control. The resonance can
be avoided by adding an external filtering capacitor (C) to the output of the DC filter. The formed LC filter resonance must be well
below the switching frequency.
To reduce the radiation of electromagnetic noise into the environment and to prevent malfunctions in the installation, use shielded
cables.
If unshielded cables are used, make sure that the installation minimizes the possibility of cross-coupling with other cables that are
carrying sensitive signals. This can be achieved, for example, by cable routing.
Follow the instructions for cable size selection for the DC/DC converter.
DC Source DC/DC Converter DC link
DC+
DC-
L
C
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Illustration 2: DC Filter Connections
The L-type inductors have two winding poles connected in series. The terminals are at the top of the 1-phase inductors, and are
marked as shown in Illustration 3.
10–30 A inductors have terminal connectors.
50–1150 A inductors have busbar terminals.
DC filter terminal sizes and mounting specifications are given in 7.6 Terminal and Torque Specifications.
L
in
/Lout
Lin/Lout
L
in L
out
L
out
/Lin
Lout/L
in
e30bj495.10
Illustration 3: DC Filter Terminals
5.2 Thermal Protection
Depending on requirements, the DC filter can be selected with built-in Pt100 temperature sensors or thermal relays (normal closed).
If temperature level monitoring is required, select the Pt100 type DC filter. The thermal relay type protection is used for indication of
alarm and fault limits of the DC filter. The temperature sensors are mounted in all three separate inductors. The wiring of the tem-
perature sensors is shown in Illustration 4.
The option board OPT-BH is required for the Pt100 sensors. Each sensor is wired to its own channel. Thermal relay type sensors can
be connected to any digital input of the drive. One digital input is used for the alarm signal and another for the fault signal by wiring
the sensors in series. The auxiliary power input is the same for both the alarm and fault sensors.
Switching temperatures of the thermal relays depend on the DC filter type. See the datasheet of the DC filter for specific values. The
temperature limits are:
Alarm = 125–140 °C
Fault = 140–155 °C
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Installation Guidelines
DC Filters
Design Guide

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The recommended temperature limits for Pt100 sensors are the same as the switching temperatures of the thermal relays.
B+
NXP
CONTROL
OPT-BH
U V W
B-
θ θ θ
B+
NXP
CONTROL
DI
U
ALARM ALARM ALARM
FAULT FAULT FAULT
V W
B-
θ
e30bj353.10
θ θ
θ θ θ
Illustration 4: DC Filter Wiring Diagrams with PT100 (Left) and Thermal Relays (Right)
The thermal sensors are connected to 4 mm2feedthrough terminals.
Pt100 temperature sensors:
Connected between terminals 1 and 2.
Thermal relays:
Alarm signal connected to terminals 1 and 2.
Fault signal connected to terminals 3 and 4.
1 2 3 4
e30bj645.10
Illustration 5: Terminals for Thermal Protection
5.3 Mounting
The DC filter is typically mounted inside a cabinet next to the DC/DC converter. If there is not enough space for the side-by-side
mounting, install the inductors on top of each other. See the example in Illustration 6. Use the lifting eyes or holes to mount the
inductors.
Note: In any environment where vibration is present, mount the filters with top and bottom clamps for reliable installation.
The distance from the cabinet walls to the inductors must be at least 20 mm.
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Installation Guidelines
DC Filters
Design Guide

See the dimensions of the DC filters in 7.5 Dimensions.
To avoid excess temperature rise of the top mounted inductors in the cabinet installation, sufficient airflow through the inductors
must be guaranteed. To guide the airflow through the inductors, use air baffles with an external cooling fan as shown in Illustration
6.
The power losses of filters in the low current range (10–50 A) are typically low enough to install the inductors without extra air
baffles and fan. In the filter range above 50 A, the cooling arrangement must be implemented.
The cabinet cooling must be guaranteed also with liquid-cooled DC filters. Typically 30–40% of the power losses from the filter are
transferred to air and 60–70% into liquid.
Note: If a forced air-cooled filter is used, the cooling fan or blower must be provided separately.
See the specifications for the cooling system in 7.3 Cooling System Requirements.
1 1
1
1
1
2
2
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Illustration 6: DC Filter Mounting Example
1
Air guides
2
Airflow
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Installation Guidelines
DC Filters
Design Guide

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6 Maintenance
6.1 Preventive Maintenance Recommendations
To maintain trouble-free operation of the DC filter, environmental conditions, load, cooling, and voltage levels have to be within the
specifications given for the DC filter.
Regular maintenance is recommended to ensure long lifetime and undisturbed operation. It is also recommended, as a good serv-
ice practice, to record a maintenance log with counter values, date, and time describing the maintenance and service actions.
At least the following maintenance actions must be taken after one year from installation and thereafter every five years:
Visual inspection: Check for the unusual, for example, for signs of overheating, aging, corrosion, and for dusty and damaged
components.
Cleaning: Use compressed air or a vacuum cleaner to remove dust and dirt. To avoid damaging sensitive insulations, handle the
wiring area of the cabinet with care. Do not use liquids for the cleaning.
Tightening torques: Check that the tightening torques of the cable connections are according to the specifications. See 7.6
Terminal and Torque Specifications.
6.2 Recommended Disposal
When the filter reaches the end of its service life, its primary components can be recycled.
Contact your local Danfoss office for further information on environmental aspects and recycling instructions for professional recy-
clers. End of life treatment must follow international and local regulations.
This symbol on the product indicates that it must not be disposed of as household waste. Do not dispose of equipment
containing electrical components together with domestic waste.
It must be handed over to the applicable take-back scheme for the recycling of electrical and electronic equipment.
Dispose of the product through channels provided for this purpose.
Comply with all local and currently applicable laws and regulations.
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Maintenance
DC Filters
Design Guide

7 Specifications
7.1 General Specifications
Table 7: General Specifications for DC Filters
Item
Specification
Nominal voltage
750 V DC (Voltage range: 0–1200 V DC)
1025 V DC (Voltage range: 0–1200 V DC)
Switching frequency
5 kHz
Power loss
See 7.4 Technical Data
Overload capacity
1.5 x INOM 1 min overload/10 min total cycle, RMS = INOM overcycle
Protection level
IP00
Insulation class
Class H (180 °C)
Standards
IEC61800-5-1, UL61800-5-1
REACH, RoHS 3, China RoHS, IEC 62474
IEC60721-3-3
IEC60076-6
UL 1741
7.2 Environmental Data
Table 8: Environmental Data for the DC Filters
Item
Specification
Temperature during operation
-10…+50 °C, full performance
+50…+60 °C, limited performance
Current derating of 2% for each increased degree Celsius.
Temperature during storage and transportation
-40…+70 °C
Relative humidity (during operation)
0–95%, no condensation
Pollution degree (EN61800-5-1)
PD 3
Air quality
Contamination levels (IEC 60721-3-3)
Chemically active substances: 3C2
Mechanically active substances: 3S2
Altitude (during operation)
Maximum 2000 m above sea level.
Current derating according to equivalent DC/DC converter.
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Specifications
DC Filters
Design Guide

7.3 Cooling System Requirements
Table 9: Requirements for Air Cooling
Cooling type
Requirement
Natural convection
Sufficient airflow through inductors, when mounted on top of each other.
Forced air cooling
Nominal airflow 3 m/s.
External fan/blower is required.
Table 10: Requirements for Liquid Cooling
Requirement
Specification
Coolant flow rate
6 l/min
Maximum operating system pressure
6 bar
Maximum pressure
Maximum peak 30 bar/60 s according to UL61800-5-1
Pressure drop (at flow rate 6 l/min)
0.2 bar
Nominal temperature of coolant
5–45 °C
Maximum temperature of coolant
70 °C
Allowed coolants
Drinking water according to 98/83/EY
Demineralized water
Non-corrosive
Propylene glycol or ethylene glycol mixture with the preceding water qualities
Cooling system connections
Following the drive system connections
Cooling system materials
Stainless steel: AISI304, AISI316
Aluminum: Corrosion resistant
Glycol-tolerant plastics
Not allowed: Copper, brass, PVC
7.4 Technical Data
Some of the DC filters with rated voltage 750 V DC can be used at nominal 1025 V DC system voltage due to the high impedance
value. See the tables in 4 Selection.
Table 11: Technical Data for Air-cooled DC Filters
Code Num-
ber
Filter type code
Manufacturer part
code
Rated
voltage
[V DC]
Cooling
Nominal
current
at 50 °C
[A]
Power
loss at
20 °C
[W]
Protec-
tion
rating
Switching
frequency
[kHz]
181B5954
LDC-0010-6-0-APt
40277-SET-PT100
1025
AN
10
60
IP00
5
181B5955
LDC-0010-6-0-ATr
40277-SET-THER-
MIK
181B5956
LDC-0020-5-0-APt
40260-SET-PT100
750
AN
20
110
IP00
5
181B5957
LDC-0020-5-0-ATr
40260-SET-THER-
MIK
181B5958
LDC-0030-6-0-APt
56606-SET-PT100
1025
AN
30
200
IP00
5
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Specifications
DC Filters
Design Guide

Code Num-
ber
Filter type code
Manufacturer part
code
Rated
voltage
[V DC]
Cooling
Nominal
current
at 50 °C
[A]
Power
loss at
20 °C
[W]
Protec-
tion
rating
Switching
frequency
[kHz]
181B5959
LDC-0030-6-0-ATr
56606-SET-THER-
MIK
181B5960
LDC-0050-6-0-APt
36326-SET-PT100
1025
AN
50
250
IP00
5
181B5961
LDC-0050-6-0-ATr
36326-SET-THER-
MIK
181B5962
LDC-0092-5-0-APt
36327-SET-PT100
750
AN
92
340
IP00
5
181B5963
LDC-0092-5-0-ATr
36327-SET-THER-
MIK
181B5966
LDC-0092-6-0-APt
56771-SET-PT100
1025
AN
92
330
IP00
5
181B5967
LDC-0092-6-0-ATr
56771-SET-THER-
MIK
181B5964
LDC-0092-5-0-BPt
36584-SET-PT100
750
AF
92
300
IP00
5
181B5965
LDC-0092-5-0-BTr
36584-SET-THER-
MIK
181B5970
LDC-0170-6-0-APt
37404-SET-PT100
1025
AN
170
450
IP00
5
181B5971
LDC-0170-6-0-ATr
37404-SET-THER-
MIK
181B5972
LDC-0270-5-0-APt
38739-SET-PT100
750
AN
270
460
IP00
5
181B5973
LDC-0270-5-0-ATr
38739-SET-THER-
MIK
181B5976
LDC-0400-6-0-APt
38331-SET-PT100
1025
AN
400
840
IP00
5
181B5977
LDC-0400-6-0-ATr
38331-SET-THER-
MIK
181B5978
LDC-0400-6-0-BPt
38349-SET-PT100
1025
AF
400
1100
IP00
5
181B5979
LDC-0400-6-0-BTr
38349-SET-THER-
MIK
181B5980
LDC-0420-5-0-APt
39023-SET-PT100
750
AN
420
750
IP00
5
181B5981
LDC-0420-5-0-ATr
39023-SET-THER-
MIK
181B5982
LDC-0540-6-0-BPt
44079-SET-PT100
1025
AF
540
1300
IP00
5
181B5983
LDC-0540-6-0-BTr
44079-SET-THER-
MIK
181B5986
LDC-0900-5-0-BPt
53552-SET-PT100
750
AF
900
1900
IP00
5
181B5987
LDC-0900-5-0-BTr
53552-SET-THER-
MIK
AJ377845348678en-000101 / 172F4785 | 19Danfoss A/S © 2023.01
Specifications
DC Filters
Design Guide

Table 12: Technical Data for Liquid-cooled DC Filters
Code Num-
ber
Filter type code
Manufacturer
part code
Rated
voltage
[V DC]
Cooling
Nominal
current at
liquid tem-
perature
45 °C [A]
Power
loss at liq-
uid tem-
perature
45 °C [W]
Protec-
tion
rating
Switching
frequency
[kHz]
181B5968
LDC-0160-6-0-CPt
41787-SET-
PT100
1025
Liquid
160
600
IP00
5
181B5969
LDC-0160-6-0-CTr
41787-SET-
THERMIK
181B5974
LDC-0340-6-0-CPt
36858-SET-
PT100
1025
Liquid
340
1100
IP00
5
181B5975
LDC-0340-6-0-CTr
36858-SET-
THERMIK
181B5984
LDC-0700-6-0-CPt
38175-SET-
PT100
1025
Liquid
700
2200
IP00
5
181B5985
LDC-0700-6-0-CTr
38175-SET-
THERMIK
181B5988
LDC-1150-6-0-CPt
36859-SET-
PT100
1025
Liquid
1134
2700
IP00
5
181B5989
LDC-1150-6-0-CTr
36859-SET-
THERMIK
7.5 Dimensions
The dimensions in Table 13 refer to drawings shown in Illustration 7, Illustration 8, and Illustration 9. Details of the terminal connec-
tions can be found in the mechanical drawing of the specific filter.
Table 13: Dimensions of the 1-phase Inductors
Filter type code
Drawing
Dimensions
Weight [kg]
A
B
C
D
E
F
G
H
LDC-0010-6-0-APt
Illustration 7
154±2
116
271±5
100
100
69
7x14
–
8
LDC-0010-6-0-ATr
LDC-0020-5-0-APt
154±2
129
329±5
100
100
69
7x14
–
10
LDC-0020-5-0-ATr
LDC-0030-6-0-APt
158±5
141
299±3
100
100
69
7x14
–
14
LDC-0030-6-0-ATr
LDC-0050-6-0-APt
Illustration 8
260±5
139±5
271±3
96
155
80
9
–
17
LDC-0050-6-0-ATr
LDC-0092-5-0-APt
303±10
161±5
269±5
96
185
80
9
–
20
LDC-0092-5-0-ATr
LDC-0092-6-0-APt
305±5
168±3
339±5
96
185
80
9
–
27
LDC-0092-6-0-ATr
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Specifications
DC Filters
Design Guide