Data Sheet

ManualsBrandsPULS ManualsRack & DIN Rail Mount PSUsDIMENSION DC/DC converter 3.8 A

CD5.241-L1

CD-Series

DC/DC Converter 24V, 3.8A

DC/DC

CONVERTER

 24V DC-Input

 Isolated 24Vdc Output

 NEC Class 2 Output

 Quick-connect Spring-clamp Connection Terminals

 Efficiency up to 90.5%

 Width only 32mm

 Full Power Between -25°C and +60°C

 Soft-start Function Included

 Minimal Inrush Current Surge

 Reverse Input Polarity Protection

 3 Year Warranty

1/21

GENERAL DESCRIPTION

The Dimension CD-Series offer DIN-rail DC/DC converters

in the 92-120W output power range in a very compact

housing. These DC/DC converters are allowed to run

with a battery or similar sources or can also be used to

refresh and stabilize the 24Vdc on the end of long cable

runs. The basic units include all the essential basic

functions while the -S1 version is equipped with quick-

connect spring clamp terminals, a DC-OK-contact which

monitors the output and an input-low-relay-contact.

The –L1 version additionally fulfills the NEC Class 2

requirements. All devices except the CD5.241-L1 have a

PowerBoost of 20% incorporated. This extra power can

even be used continuously up to +45°C.

CD5.241 CD5.242

CD5.243

CD5.241-S1

24V->24V,

Spring-clamp-terminals,

ut-low, DC-OK si

nals

CD-Series

Summary of content (21 pages)

PAGE 1
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series DC/DC CONVERTER 24V DC-Input Isolated 24Vdc Output NEC Class 2 Output Quick-connect Spring-clamp Connection Terminals Efficiency up to 90.
PAGE 2
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series INDEX Page 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. Intended Use .......................................................3 Installation Requirements...................................3 Input Voltage ......................................................4 Soft-start and Input Inrush Current Surge .........5 Output .................................................................6 Hold-up Time...................................................
PAGE 3
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 1. INTENDED USE This device is designed for installation in an enclosure and is intended for the general use such as in industrial control, office, communication, and instrumentation equipment. Do not use this DC/DC converter in equipment where malfunction may cause severe personal injury or threaten human life. 2. INSTALLATION REQUIREMENTS This device may only be installed and put into operation by qualified personnel.
PAGE 4
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 3. INPUT VOLTAGE Input voltage Input voltage range nom. DC 24V 14.4-32.4Vdc 36.0Vdc max. Allowed voltage between input and earth Allowed input ripple voltage Turn-on voltage Shut-down voltage Input current Start-up delay Rise time Turn-on overshoot Input capacitance max. max. 60Vdc or 42.2Vac 5Vpp typ. typ. typ. typ. typ. typ. typ. max. typ. 17.5Vdc 14.0Vdc 35.0Vdc 4.
PAGE 5
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 4. SOFT-START AND INPUT INRUSH CURRENT SURGE Inrush current limitation An active inrush limitation circuit (inrush limiting resistor which is bypassed by a relay contact) limits the input inrush current after turn-on of the input voltage. The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on. Inrush current max. typ. typ. Inrush energy 1.6Apeak 1.
PAGE 6
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 5. OUTPUT Output voltage Adjustment range Factory setting Line regulation Load regulation Ripple and noise voltage Output current Output power Short-circuit current nom. min. max. max. max. nom. nom. min. max. typ. Output capacitance 24V 24.1V 25mV 100mV 50mVpp 3.8A 92W 3A 6A 2 200μF Fig. 5-1 Output voltage vs. output current, typ. Output Voltage not adjustable ±0.2%, at full load, cold unit Input voltage variations between 18 to 32.
PAGE 7
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 6. HOLD-UP TIME The input side of the DC/DC converter is equipped with a bulk capacitor which keeps the output voltage alive for a certain period of time when the input voltage dips or is removed. The bulk capacitor can be discharged by loading the DC/DC converter on the output side or through a load which is parallel to the input. There is no protection in the DC/DC converter which prevents current from flowing back to the input terminals.
PAGE 8
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 7. EFFICIENCY AND POWER LOSSES Efficiency Power losses Fig. 7-1 Input 24Vdc 90.5% 0.7W 5.5W 9.7W typ. typ. typ. typ. Efficiency vs. output current at 24V, typ. at 24V, 3.8A at no output load at 24V, 1.9A at 24V, 3.8A Fig. 7-2 Losses vs. output current at 24V, typ. Power Losses Efficiency 91% 12W 90 10 89 8 88 6 87 4 2 86 Output Current 85 0.5 Fig. 7-3 1 1.5 2 2.5 3 Output Current 0 3.5 0 4A Efficiency vs.
PAGE 9
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 8. FUNCTIONAL DIAGRAM Fig. 8-1 Functional diagram + - Input Fuse & Input Filter Chassis Ground Reverse Polarity Protection & Inrush Limiter OverTemperature Protection Power Converter Output Filter Output OverVoltage Protection + + DC ok 9. FRONT SIDE AND USER ELEMENTS Fig.
PAGE 10
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 10. TERMINALS AND WIRING Type Solid wire Stranded wire American Wire Gauge Wire stripping length Input spring-clamp terminals max. 6mm2 max. 4mm2 20-10 AWG 10mm / 0.4inch Output spring-clamp terminals max. 6mm2 max. 4mm2 20-10 AWG 10mm / 0.4inch Instructions: a) The external circuitry of all terminals must meet the safety requirements stipulated by IEC/EN/UL 60950-1: SELV.
PAGE 11
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 12. EMC The DC/DC converter is suitable for applications in industrial environment as well as in residential, commercial and light industry environment without any restrictions. EMC Immunity Electrostatic discharge Electromagnetic RF field Fast transients (Burst) Surge voltage on input Surge voltage on output Conducted disturbance Generic standards: EN 61000-6-1 and EN 61000-6-2 EN 61000-4-2 Contact discharge Air discharge EN 61000-4-3 80MHz-2.
PAGE 12
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 13. ENVIRONMENT Operational temperature *) Storage temperature Humidity **) Vibration sinusoidal ***) Shock ***) Altitude -25°C to +70°C (-13°F to 158°F) -40 to +85°C (-40°F to 185°F) 5 to 95% r.H. 2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g 2 hours / axis 30g 6ms, 20g 11ms 3 bumps / direction, 18 bumps in total 0 to 6000m (0 to 20 000ft) see Fig.
PAGE 13
CD5.241-L1 CD-Series DC/DC Converter 24V, 3.8A 14. PROTECTION FEATURES Output protection Output over-voltage protection Electronically protected against overload, no-load and short-circuits *) typ. 31Vdc in case of an internal power supply defect, a redundant max. 32Vdc circuit limits the maximum output voltage. The output shuts down and automatically attempts to restart.
PAGE 14
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 16. DIELECTRIC STRENGTH The output voltage is floating and has no ohmic connection to the ground. Type and factory tests are conducted by the manufacturer. Field tests may be conducted in the field using the appropriate test equipment which applies the voltage with a slow ramp (2s up and 2s down). Connect all phaseterminals together as well as all output poles before conducting the test.
PAGE 15
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 17. APPROVALS EC Declaration of Conformity The CE mark indicates conformance with the - EMC directive and the - ATEX directive. CB Scheme, Information Technology Equipment IEC 60950-1 2nd Edition IEC 61010-1 UL 508 IND. CONT. EQ. UL 60950-1 NEC Class 2 NEC CLASS 2 UL 61010-1 EN 60079-0, EN 60079-15 ATEX II 3G Ex nA nC II T4 Gc IEC 60079-0, IEC 60079-15 ANSI / ISA 12.12.
PAGE 16
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 18. ROHS, REACH AND OTHER FULFILLED STANDARDS Directive 2011/65/EU of the European Parliament and the Council of June 8th, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment. Directive 1907/2006/EU of the European Parliament and the Council of June 1st, 2007 regarding the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) RoHS Directive REACH Directive 19.
PAGE 17
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 20. ACCESSORIES ZM1.WALL Wall mounting bracket This bracket is used to mount specific Dimension units onto a flat surface without utilizing a DIN-Rail. The two aluminum brackets and the black plastic slider of the unit have to be removed, so that the two steel brackets can be mounted. Fig. 20-1 ZM1.WALL Wall mounting bracket *) Fig. 20-2 Assembled wall mounting bracket *) Picture of the DC/DC converter is for representation only ZM11.
PAGE 18
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 21. APPLICATION NOTES 21.1. PEAK CURRENT CAPABILITY Solenoids, contactors and pneumatic modules often have a steady state coil and a pick-up coil. The inrush current demand of the pick-up coil is several times higher than the steady-state current and usually exceeds the nominal output current (including the PowerBoost). The same situation applies, when starting a capacitive load. Branch circuits are often protected with circuit breakers or fuses.
PAGE 19
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 21.4. EXTERNAL INPUT PROTECTION The unit is tested and approved for branch circuits up to 50A. An external protection is only required, if the supplying branch has an ampacity greater than this. Check also local codes and local requirements. In some countries local regulations might apply. If an external fuse is necessary or utilized, minimum requirements need to be considered to avoid nuisance tripping of the circuit breaker.
PAGE 20
CD5.241-L1 CD-Series DC/DC Converter 24V, 3.8A 21.8. SERIES OPERATION This DC/DC-converter is designed to meet the NEC Class 2 requirements. Do not use in series to increase the output voltage. This would increase the output power for the NEC Class 2 circuit and violates the NEC Class 2 limitations. Use CD5.241 or CD5.241-S1. 21.9. CHARGING OF BATTERIES This DC/DC converter can not be used to charge batteries. The output voltage is not adjustable. 21.10.
PAGE 21
CD5.241-L1 DC/DC Converter 24V, 3.8A CD-Series 21.11. MOUNTING ORIENTATIONS Mounting orientations other than input terminals on the bottom and output on the top require a reduction in continuous output power or a limitation in the max. allowed ambient temperature. The amount of reduction influences the lifetime expectancy of the DC/DC converter. Therefore, two different derating curves for continuous operation can be found below: Curve A1 Curve A2 Recommended output current.