PULS CP20.241-M1 Power supply units Instruction Manual
- June 9, 2024
- PULS
Table of Contents
CP20.241-M1 Installation Manual
Read this first!
Before operating this device please read this manual thoroughly and retain this manual for future reference! This device may only be installed and put into operation by qualified personnel. If damage or malfunction should occur during operation, immediately turn power off and send device to the factory for inspection. The device does not contain serviceable parts. The information presented in this document is believed to be accurate and reliable and may change without notice. For any clarifications the English translation will be used.
WARNING
Risk of electrical shock, fire, personal injury, or death:
- Turn power off before working on the device. Protect against inadvertent re-powering.
- Do not open, modify or repair the device.
- Use caution to prevent any foreign objects from entering the housing.
- Do not use in wet locations or in areas where moisture or condensation can be expected- Do not touch during power-on and immediately after power-off. Hot surfaces may cause burns.
Product Description
The CP20.241-M1 is a DIN-rail mountable single-phase-input power supply, which
provides a floating, stabilized and galvanically separated SELV/PELV output
voltage.
The specialty of this power supply is the 2MOPP (two means of patient
protection) safety approval for medical use and the fulfillment of the
required EMC tests for professional healthcare facility and home healthcare
environments.
Intended Use
This device is designed for installation in an enclosure and is intended for
use in medical equipment. Do not use this device in HF surgical equipment or
similar apertures.
Do not use this device in equipment, where malfunctioning may cause severe
personal injury or threaten human life without additional appropriate safety
devices, that are suited for the endapplication. If this device is used in a
manner outside of its specification, the protection provided by the device
maybe impaired.
Installation Instructions
Install the 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. Use shielded or unshielded
cables, twisted or untwisted cables of any length. 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 90°C for
ambient temperatures below +60°C and 105°C for ambient temperatures up to
+70°C. Ensure that all strands of a stranded wire enter the terminal
connection. 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 housing does not provide
protection against spilled liquids. The device is designed for overvoltage
category II zones. 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 terminals and the PE
potential must not exceed 264Vac. The device can also be powered from
batteries or similar DC sources. The voltage between the input terminals and
the PE terminal must not exceed 180Vdc 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 3000m (9840ft). Keep the following minimum installation
clearances: 50mm on top, 50mm 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 10A 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. Portable RF communication equipment should be used no closer than
30cm (12 inch) to the power supply or the power supply connection cables.
WAR N ING: Use of this equipment adjacent to or stacked with other
equipment should be avoided because it could result in improper operation. If
such use is necessary, this equipment and the other equipment should be
observed to verify that they are operating normally. Please note: This device
incorporates a single fuse in the L-input. For medical use an additional
external fuse in the N-input may be necessary, depending on the type of
medical equipment.
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 >1F are connected, the unit
might charge the capacitor in an intermittent mode.
Do not apply return voltages from the load to the output higher than 35V. 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 above 90% of the
adjusted voltage 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.
Do not parallel devices for higher output currents.
Do not connect the outputs of multiple devices in a series connection for
higher output voltages.
In case of an internal defect, a redundant circuit limits the maximum output
voltage to 32V. The output shuts down and performs three restart attempts. If
the failure continues, the output shuts down. Cycle input power to reset.
Technical data
All values are typical figures specified at 230Vac 50Hz input voltage, 24V 20A output load, 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
At Input voltage, Range A| 20.0 – 17.1A
15.0 – 13.0A
Derate linearly| Below +60°C ambient
Below +70°C ambient
between +60°C and +70°C
---|---|---
At Input voltage, Range B| 18.0 – 15.4A
13.5 – 9.6A
Derate linearly| Below +60°C ambient
Below +70°C ambient
between +60°C and +70°C
AC Input voltage
Range A
Range B| AC 120 – 240V
AC 100 – 240V| -15%/+10%
-15%/+10%
---|---|---
Mains frequency
Input current AC
Power factor| 50 – 60Hz
4.26 / 2.23A
0.99 / 0.98| ±6%
At 120 / 230Vac
At 120 / 230Vac
Input voltage DC
Input current DC| DC 110 – 150V
4.64A| ±20%
At 110Vdc
Input inrush current| 10 / 4.5A pk| At 120 / 230Vac, temp.
independent
Efficiency
Power losses| 94.2 / 95.6%
29.6 / 22.1W| At 120 / 230Vac
At 120 / 230Vac
Hold-up time| 32 / 32ms| At 120 / 230Vac
Temperature range| -25 to +70°C|
Max. wire size (litz wire)
Wire size AWG
Max. wire diameter
Wire stripping length| 4mm²
AWG 20-10
2.8mm
10mm / 0.4inch| Power terminals
Power terminals
Power terminals
Power terminals
Max. wire size (litz wire)
Wire size AWG
Max. wire diameter
Wire stripping length| 1.5mm²
AWG 24-16
1.6 mm
7mm / 0.28inch| Signal terminals
Signal terminals
Signal terminals
Signal terminals
Size (wxhxd)
Weight| 48x124x127mm
830g / 1.83lb| Without DIN-rail
Functional diagram
Output characteristic
Temperature range
Headquarters: PULS GmbH, Elektrastr. 6, 81925 Munich, Germany, www.pulspower.com
Germany +49 89 9278 0
China +86 512 62881820
France +33 478 668 941
North America +1 630 587 9780
Austria +43 2764 3213
Singapore +65 6684 2310
Switzerland +41 56 450 18 10
United Kingdom +44 1525 841001
The information in this document is believed to be accurate and reliable and may change without notice.
Doc. ID: PU-426.015.10-xxC (2022-02-02-AM2)