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EN 

CP10.241-R2, CP10.241-R2-C1 Installation Manual 

 

 

 

Product Description 

The CP10.241-R2 is a DIN-rail mountable single-phase-input power supply with a built-in decoupling 
MOSFET for 1+1 or n+1 redundant power supply systems. It provides a floating, stabilized and 
galvanically separated SELV/PELV output voltage. Plug connectors allow a replacement on a running 
application. 
The CP10.241-R2-C1 device is the same as the CP10.241-R2 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. 
If this device is used in a manner outside of its specification, the protection provided by the device may 
be impaired. 
 

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 is allowed. 
The enclosure of the device provides a degree of protection of IP20. The enclosure does not provide 
protection against spilled liquids. 
The isolation of the device is designed to withstand impulse voltages of overvoltage category III 
according to IEC 60664-1. Above 2000m the overvoltage category 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 or IT mains networks. The continuous voltage 
between the input terminal and the PE potential must not exceed 300Vac. 
The input can also be powered from batteries or similar DC sources. The continuous voltage between 
the supply voltage and the PE/ground potential must not exceed 375Vdc. 
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 5000m (16400ft). 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. 
Do not unplug the connectors more often than 20 times in total. 
 

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. If capacitors with a capacitance >1.5F 
are connected, the unit might charge the capacitor in an intermittent mode. 
Do not apply return voltages from the load to the output terminals higher than 35V. 
The green DC-OK LED reports an output voltage above 22Vdc of a running device. 
The DC-OK relay monitors the output voltage and the contact is closed when the DC-OK LED is on. 
Contact ratings: 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A for resistive loads. 
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. 
At heavy overloads (when output voltage falls below 13V), the device delivers continuous output 
current for 2s. After this, the output is switched off for 18s before a new start attempt is automatically 
performed. This cycle is repeated as long as the overload exists. 
Devices can be paralleled to increase the output power. The ambient temperature is not allowed to 
70°C. Above +37°C, the sum of output current must be reduced. The device is featured with 
a “soft output regulation characteristic” in order to achieve current share between multiple devices, 
when they are connected in parallel. The “soft output regulation characteristic” regulates the output 
voltage in such a manner that the voltage at no load is approx. 4% higher than at nominal load. 
Energize all units at the same time. It also might be necessary to cycle the input power (turn-off for at 
least five seconds), if the output was in overload or short circuit. 
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 230Vac 50Hz input voltage, 24V 
10A output load, 25°C ambient temperature and after a 5 minutes run-in 
time unless otherwise noted. 

Output voltage 

DC 24V 

0%/+6% 

Adjustment range 

- Not 

adjustable 

Output current 

12A 

Below +45°C ambient  

 

10A At 

+60°C 

ambient 

 

7.5A At 

+70°C 

ambient 

 

Derate linearly b45°C and +70°C 

Input voltage AC 

AC 100 - 240V 

-15% / +10% 

Mains frequency 

50 – 60Hz 

±6% 

Input current AC 

2.17 / 1.14A 

At 120 / 230Vac 

Power factor 

0.99 / 0.97 

At 120 / 230Vac 

Input voltage DC 

DC 110 - 150V 

±20% 

Input current DC 

2.35A At 

110Vdc 

Input inrush current 

6 / 9A pk 

At 40°C, 120 / 230Vac 

Efficiency 

93.0 / 94.7% 

At 120 / 230Vac 

Power losses 

18.1 / 13.4W 

At 120 / 230Vac 

Hold-up time 

37ms  

Temperature range 

-25 to +70°C 

 

Max. wire size (litz wire) 

2.5mm² Power 

terminals 

Wire size AWG 

AWG 20-12 

Power terminals 

Max. wire diameter 

2.4mm Power 

terminals 

Wire stripping length 

7mm / 0.28inch 

Power terminals 

Tightening torque 

0.5Nm / 4.5lb.inch Power terminals 

Max. wire size (litz wire) 

1.5mm²

 

 DC-OK 

terminals 

Wire size AWG 

AWG 26-16 

DC-OK terminals 

Max. wire diameter 

1.8 mm 

DC-OK terminals 

Wire stripping length 

6mm / 0.25inch 

DC-OK terminals 

Tightening torque 

0.8Nm / 7lb.inch 

DC-OK terminals 

Size (wxhxd) 

39x124x117mm Without 

DIN-rail 

Weight 

600g / 1.3lb 

 

 
 

Functional Diagram 

+

-

Output

Over-

Voltage

Protection

PFC

Converter

Power

Converter

Output

Filter

Output

Power

Manager

Temper-

ature

Shut-

down

Input Fuse
Input Filter
Input Rectifier
Inrush Current
Limiter

L

N

13

14

Output

Voltage

Regulator

Output

Voltage
Monitor

V

OUT

DC-ok
Contact

DC-ok

LED

DC-ok
Relay

De-

coupling

 
 

Output Characteristic 

Output voltage

15A

24V

Output current

12V

0V

3A

6A

9A

12A

0A

A: continuous current
B: intermitted current

A

B

 

 
 

Temperature Range 

Allowed output current

Ambient temperature

0A

-25

A: continuous
B: short term (max. 60s)

12A

+25

0

+45

+70°C

7.5A

A

B

10A

+60

 

 

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