Classified as Business
Data Sheet
EC-LTS1200-410
Liquid cooled heavy duty inductor unit
FEATURES
Extremely compact design: 410 A unit only 23 kg
High enclosure class IP67 – sealed from moisture
and dust
Liquid cooled with plain water or water/glycol
mixture
Ambient temperature up to +105 °C and down to
-40 °C
Allowed coolant temperature up to +65 °C
Robust design withstanding high levels of
mechanical vibrations and shocks
Designed especially for highly cyclical loads typical
in heavy mobile work machines
Three temperature sensors included for
temperature surveillance
GENERAL
The device is a heavy duty external inductance unit designed
to be combined with EC-C1200 DC/DC-converter. It allows
flexible positioning of the DC/DC-converter and inductor
unit and is used to transfer energy between two different
voltage levels.
Typical applications:
Boosting battery voltage to higher DC-link voltage
Charging high voltage batteries from higher DC-link
voltage
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Data Sheet
Classified as Business
Inductance per
165 µH (at nominal current)
Minimum cooling
10 l/min
Mechanical vibration
10 G
58…150 Hz: 1 G
HV cable glands
(with
3x
Pflitsch blueglobe
TRI bg
Recommended cable
35 mm
: Druseidt
with narrow
EC-LTS1200-410
SPECIFICATIONS
DC connection
DC link voltage range 0-850 VDC
DC link nominal
voltage
Nominal current 410A total (65 °C coolant, 8 kHz
inductor
Mechanical
Dimensions (WxHxL,
mm)
Weight 23 kg
750 VDC
interleaved switching frequency)
403x147x262
403x147x287 (with +CG1 option)
Mechanical shock 50 G
Connections
5…24.9 Hz: +-1.6 mm
24.9…100 Hz: 4G (sinusoidal)
ISO 16750-3
4.2.2 Test for devices on rigid
points on the body and on
the frame
Notes:
⎯acceleration: 500 m/s2;
⎯duration: 6 ms;
⎯number of shocks: 10 per
test direction (x, y and z axis,
both directions, 6x directions
in total).
30 G, CEI EN 61373 category 2
Cooling
Cooling liquid Plain water with appropriate
Cooling liquid glycol
type
liquid flow
Maximum continuous
pressure
Pressure loss 40 mbar with 10l/min
Cooling liquid
temperature
corrosive inhibitor (max. 50 %
corrosive inhibitor)
Ethylene glycol (Glysantin G48
recommended)
2 bar
(+25°C coolant)
-40°C …+65°C
Ambient Conditions
Storage temperature -40°C…105°C
Operating
temperature
Altitude max. 4000 m
Relative humidity 100 %
Enclosure class IP67
-40°C…105°C
(with nominal coolant temp.)
ISO 16750-3
Test VII – Commercial vehicle,
sprung masses – Table 12
Notes:
test duration 8h axis (three
axis tested; x,y and z axis)
total spectral acceleration
5,91 G
5 G, CEI EN 61373 category 2
IEC 60068-2-6 (2007-12, Test
Fc)
10…57 Hz: amplitude
0.075mm
rms
Coolant connection 2 x G3/4” coolant hose
connector
HV cable
recommended type
HV cable cross section ɊNN2 (Cu) (M25 cable gland)
+CG1)
HV cable lug size 35-8, 50-8, 70-8, 95-8, 120-8
lug
Temperature
measurement
Temperature sensor
connector + insert +
pins
Temperature sensor
mating connector +
insert + socket
HUBER+SUHNER Radox
Elastomer S screened
automotive cable
www.hubersuhner.com
ɊNN2 (Cu) (M32 cable gland)
225ms tri
3x Pflitsch blueglobe TRI bg
232ms tri
2x M32 plugs
Configurable cable glands, see
Table 3
2
flange 03901
50 mm2: Druseidt with narrow
flange 03903
70 mm2: Druseidt with narrow
flange 03906
95 mm2: Druseidt with narrow
flange 03910 (Only compatible
with M32 cable gland)
120 mm2: Druseidt with narrow
flange 03914 (Only compatible
with M32 cable gland)
www.druseidt.de
3x PT100 temperature sensors,
one per inductor
M16 male, 7.840.200.000
Insert 10-pole, 7.003.910.101
Sensor Connector Pin,
7.010.981.001
www.hummel.com
M16 female, 7.810.400.000
Insert 10-pole, M16, RCPT,
7.003.910.102
Sensor Connector Socket,
7.010.981.002
www.hummel.com
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Data Sheet
Classified as Business
EC-LTS1200-410
Figure 1 Temperature measurement connector pinout
PIN Description
1
2
3
4
5
6
7
8
Table 1 Pin configuration of temperature measurements (M16 connector, one sensor per inductor)
PRESSURE LOSS VS COOLANT FLOW
0,16
0,14
0,12
0,08
0,06
0,04
Pressure loss [bar]
0,02
Figure 2 Device pressure loss vs coolant flow
Temperature 1, PT100 (P), inductor
Temperature 1, PT100 (N), inductor
Temperature 2, PT100 (P), inductor
Temperature 2, PT100 (N), inductor
Temperature 3, PT100 (P), inductor
Temperature 3, PT100 (N), inductor
Enclosure ground (shield)
Reserve
0,1
0
0 5 10 15 20 25
Volume flow [l/min]
DIMENSIONS
Figure 3 Device dimensions with +CG1 option (example cable gland configuration, 3x M25, 1x M32 cable glands and 2x M32
plugs)
Dimension Length
Table 2 Device dimensions with +CG1 option
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A
B 147 mm
C 287 mm
403 mm
Data Sheet
Classified as Business
1x M32 cable gland,
2x M32 cable glands,
3x M32 cable glands,
EC-C
1200
EC-LTS
EC-LTS1200-410
APPLICATION EXAMPLE
DC+
=
L1
L2
LV+
L3
DC- / LV-
Figure 4 EC-C1200 DC/DC converter combined with the EC-LTS unit.
LV+ and LV- can be connected, for example, to battery and DC+ and DC- to DC-link. EC-C1200 would then control the battery discharging and charging.
LTS1200 has internal parallel busbar included for low voltage (LV) side inductors. With internal parallel connection 1 to 3 output
(LV+) cables can be used depending on the cable gland configuration. Typical cable gland configurations can be seen in table
below.
Connections Typical cable gland combinations
Connection to DC/DC-converter (L1, L2, L3) 3x M25 cable glands 3x M25 cable glands 3x M25 cable glands
Low voltage side positive connection (+LV)
Table 3 Typical cable gland configurations for LTS1200 (cable glands and plugs are included in the delivery with +CG1 option for
any of these configurations)
PRODUCT CODE AND OPTIONS
Use the product code including all needed options for ordering. Standard options do not need to be listed in the code as they are selected by default if a non-standard option is not selected. Standard options are indicated by a star (*).
=
2x M32 plugs
1x M32 plugs
no plugs
EC-LTS is designed to be used in combination with the EC-C inverters.
Product code Description
EC-LTS1200-410 Standard unit without cable glands or plugs
EC-LTS1200-410+CG1 Unit with all necessary cable glands included for free configuration of power connections
Table 4 Product code examples
Variant Code Description Additional information
Cable glands * No cable glands No cable glands or plugs
+CG1 M25/M32 cable glands
Marine classification * No marine classification
+CL1
+CL2
+CL3
+CL4
+CL5
*Standard option
Table 5 Option list
Danfoss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its
products without notice. This also applies to products already on order provided that such alterations can be made without changes being necessary in
specifications already agreed. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are
trademarks of Danfoss A/S. All rights reserved.
3x M25 cable glands, 3x M32 cable glands and 2x
M32 plugs in delivery
ABS American Bureau of Shipping
BV Bureau Veritas
DNV
LR Lloyd’s Register
RINA
4 | © Danfoss | June 2021 AI273944143869en-000104
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