User Manual

EN
CT10.241, CT10.241-C1 Installation Manual
Product Description
The CT10.241 is a DIN-rail mountable power supply for three-phase mains systems, which provides a
floating, stabilized and galvanically separated SELV/PELV output voltage.
The CT10.241-C1 device is the same as the CT10.241 but with conformal coated pc-boards.
Intended Use
This device is designed for installation in an enclosure and is intended for commercial use, such as in
industrial control, process control, monitoring and measurement equipment or the like. Do not use this
device in equipment where malfunction may cause severe personal injury or threaten human life.
Installation Instructions
Install device in an enclosure providing protection against electrical, mechanical and fire hazards.
Install the device onto a DIN-rail according to EN 60715 with the input terminals on the bottom of the
device. Other mounting orientations require a reduction in output current.
Make sure that the wiring is correct by following all local and national codes. Use appropriate copper
cables that are designed for a minimum operating temperature of 60°C for ambient temperatures up to
+45°C, 75°C for ambient temperatures up to +60°C and 90°C for ambient temperatures up to +70°C.
Ensure that all strands of a stranded wire enter the terminal connection.
Unused screw terminals should be securely tightened.
The device is designed for pollution degree 2 areas in controlled environments. No condensation or
frost allowed.
The enclosure of the device provides a degree of protection of IP20.
The isolation of the device is designed to withstand impulse voltages of overvoltage category III
according to IEC 60664-1.
For corner grounded delta systems, the overvoltage category level is
reduced to level II.
The device is designed as “Class of Protection I” equipment according to IEC 61140.
Do not use without a proper PE (Protective Earth) connection.
The device is suitable to be supplied from TN-, TT- and IT mains networks. The voltage between the L
terminals and the PE terminal must not exceed 500Vac continuously.
A disconnecting means shall be provided for the input of the device.
The device is designed for convection cooling and does not require an external fan. Do not obstruct
airflow and do not cover ventilation grid!
The device is designed for altitudes up to 6000m (19685ft). See additional requirements in the product
datasheet for use above 2000m (6560ft).
Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and
right side. Increase the 5mm to 15mm in case the adjacent device is a heat source. When the device
is permanently loaded with less than 50%, the 5mm can be reduced to zero.
The device is designed, tested and approved for branch circuits up to 32A (IEC) and 30A (UL) without
additional protection device. If an external fuse is utilized, do not use circuit breakers smaller than 6A
B- or C-Characteristic to avoid a nuisance tripping of the circuit breaker.
The maximum surrounding air temperature is +70°C (+158°F). The operational temperature is the
same as the ambient or surrounding air temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.
Installation Instructions for Hazardous Location Areas
The device is suitable for use in Class I Division 2 Groups A, B, C, D locations.
WARNING EXPLOSION HAZARDS!
Substitution of components may impair suitability for this environment.
Do not disconnect the device or operate the voltage adjustment unless power has been switched off or
the area is known to be non-hazardous.
Functional Description
The output is electronically protected against no-load, overload and short circuit and can supply any
kind of loads, including unlimited inductive and capacitive loads.
Do not apply return voltages from the load to the output terminals higher than 35Vdc.
The output voltage can be adjusted with a small flat-blade screwdriver on the front of the unit.
The green DC-OK LED reports an output voltage above 21V of a running device.
The device is equipped with an over-temperature protection. In case of a high temperature, the output
shuts down and starts automatically again after cooling off.
Devices can be paralleled to increase the output power. The ambient temperature is not allowed to
exceed +60°C. The output voltage of all devices shall be adjusted to the same value (±100mV) in
“Single Use” mode with the same load conditions on all units, or the units can be left with the factory
settings. After the adjustments, set the unit to “Parallel Use” mode, in order to achieve load sharing.
The “Parallel Use” mode regulates the output voltage in such a manner that the voltage at no load is
approx. 4% higher than at nominal load. If more than three devices are connected in parallel, a diode,
fuse or circuit breaker with a rating of 15A or 16A is required on each output.
Same devices can be connected in series for higher output voltages. It is allowed to connect as many
devices in series as needed, providing the sum of the output voltage does not exceed 150Vdc.
In case of an internal defect, a redundant circuit limits the maximum output voltage to 32V. The output
shuts down and automatically attempts to restart.
Technical Data
All values are typical figures specified at 3x 400Vac 50Hz input voltage,
symmetrical phase voltages, 24V 10A output, 25°C ambient temperature
and after a 5 minutes run-in time unless otherwise noted.
Output voltage DC 24V Nominal
Adjustment range 24 – 28Vdc Factory setting 24.1V
Output current 12.0 – 10.3A Below +45°C ambient
10.0 – 8.6A At +60°C ambient
7.5 – 6.5A At +70°C ambient
Derate linearely between +45°C and +70°C
Input voltage AC AC 380 - 480V -15% / +20%
Mains frequency 50 – 60Hz ±6%
Input current AC 0.7 / 0.6A At 3x400 / 480Vac
Power factor 0.53 / 0.52 At 3x400 / 480Vac
Input inrush current 4 / 4A peak At 3x400 / 480Vac
Efficiency 92.8 / 92.9% At 3x400 / 480Vac
Losses 18.6 / 18.3W At 3x400 / 480Vac
Hold-up time 34 / 54ms At 3x400 / 480Vac
Temperature range -25 to +70°C
Max. wire size (litz wire) 4mm²
Wire size AWG AWG 20-10
Max. wire diameter 2.8mm
Wire stripping length 7mm / 0.28inch
Tightening torque 1Nm / 9lb.inch
Size (wxhxd) 62x124x117mm Without DIN-rail
Weight 750g / 1.65lb
Functional Diagram
Single /
Parallel
+
+
-
-
Output
Over-
Voltage
Protection
PFC
Inductor
Voltage
Regulator
Power
Converter
Output
Filter
Output
Power
Manager
Temper-
ature
Shut-
down
Input Fuse
Input Filter
Input Rectifier
Inrush Current
Limiter
V
OUT
L2
L3
DC-OK
LED
L1
Output Characteristic
Output voltage
16A
24V
Output current
12V
0V
2A
6A 8A 12A0A
Adjustment range
28V
4A 10A 14A 18A 20A
22A
Temperature Range
Allowed output current at 24V
Ambient temperature
0A
-25
A: continuous
B: short term (max. 60s)
12A
+250 +45 +70°C
7.5A
10A
+60
A
B