Datasheet
Table Of Contents
- 1. Intended Use
- 2. Installation Requirements
- 3. Input Voltage
- 4. Soft-start and Input Inrush Current Surge
- 5. Output
- 6. Hold-up Time
- 7. Efficiency and Power Losses
- 8. Functional Diagram
- 9. Front Side and User Elements
- 10. Terminals and Wiring
- 11. Reliability
- 12. EMC
- 13. Environment
- 14. Protection Features
- 15. Safety Features
- 16. Dielectric Strength
- 17. Used Substances
- 18. Approvals
- 19. Fulfilled Standards
- 20. Physical Dimensions and Weight
- 21. Accessories
- 22. Application Notes
- 22.1. Peak Current Capability
- 22.2. Back-feeding Loads
- 22.3. Inductive and Capacitive Loads
- 22.4. Charging of Batteries
- 22.5. External Input Protection
- 22.6. Requirements for the Supplying Source
- Parallel Use to Increase Output Power
- 22.8. Parallel Use for Redundancy
- 22.9. Daisy Chaining of Outputs
- Series Operation
- 22.11. Use in a Tightly Sealed Enclosure
- 22.12. Mounting Orientations

CD5.243
CD-Series
DC/DC Converter 24V, 4A
18. APPROVALS
IEC 60950-1
CB Scheme,
Information Technology Equipment
UL 508
IND. CONT. EQ.
LISTED for use as Industrial Control Equipment;
U.S.A. (UL 508) and Canada (C22.2 No. 107-1-01);
E-File: E198865
ANSI / ISA 12.12.01-2007
IND. CONT. EQ.
LISTED for use in Hazardous Location Class I Div 2 T4 Groups
A,B,C,D systems; U.S.A. (ANSI / ISA 12.12.01-2007) and Canada
(C22.2 No. 213-M1987); E-File: E327416
UL 60950-1
RECOGNIZED for the use as Information Technology
Equipment, Level 3; U.S.A. (UL 60950-1) and Canada (C22.2
No. 60950-1); E-File: E137006
ANSI / ISA 12.12.01-2007
RECOGNIZED for use in Hazardous Location Class I Div 2 T4
Groups A,B,C,D systems; U.S.A. (ANSI / ISA 12.12.01-2007) and
Canada (C22.2 No. 213-M1987); E-File: E246877
The unit is suitable for use in Class I Division 2 Groups A, B, C, D locations.
Substitution of components may impair suitability for Class I Division 2 environment.
Do not disconnect equipment unless power has been switched off. Wiring must be
in accordance with Class I, Division 2 wiring methods of the National Electrical Code,
NFPA 70, and in accordance with other local or national codes.
19. FULFILLED STANDARDS
EN 61558-2-17 Safety of Power Transformers
EN/IEC 60204-1 Safety of Electrical Equipment of Machines
EN/IEC 61131-2 Programmable Controllers
EN 50178, IEC 62103 Electronic Equipment in Power Installations
Oct 2009 / Rev. 1.0 DS-CD5.243-EN
All parameters are specified at 24V, 4A, 12Vdc input voltage, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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