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SDR-75 75W Thin Din Rail Power Supply

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  • SDR-75

  • SMUN

Description:


The SDR-75 series rail power supply is a high-quality power supply solution specifically designed for industrial automation and control sectors. Below are its key features, applications, and usage examples:

Features:

  1. Power Output & Voltage Range: Offering a rated power of 75 watts, the SDR-75 series comes in various output voltage options such as 5V, 12V, 24V, 36V, 48V, etc., tailored to different equipment requirements. For instance, SDR-75-24 denotes an output voltage of 24V DC.

  2. Ease of Installation: Designed for standard 35mm DIN rail mounting, it facilitates quick integration into control cabinets or distribution panels, saving space and simplifying maintenance.

  3. High Efficiency & Energy Saving: With conversion efficiency typically exceeding 90%, it reduces energy consumption and running costs. Some models also feature Power Factor Correction (PFC), enhancing grid efficiency.

  4. Universal Input: With a broad input voltage range of 85-264VAC or 100-370VDC, it accommodates voltage fluctuations across different regions, ensuring stable operation worldwide.

  5. Comprehensive Protection Features: Including short circuit, overload, and overvoltage protection, these safeguards ensure both the power supply's and connected devices' safety and longevity.

  6. Stability and Reliability: With 4kV high isolation and low ripple noise design, it enhances the overall stability and reliability of the power system, ideal for applications requiring high power quality.

  7. Global Certifications: Compliant with multiple international safety standards such as CE, CCC, etc., it meets global market access requirements.

Applications:

  1. Industrial Automation: Powers core components in CNC machines, production line controls, PLC systems, ensuring continuous and stable operation of equipment.

  2. Security & Surveillance: Supplies stable power to CCTV cameras, video recorders, and access control systems, supporting round-the-clock surveillance operations.

  3. LED Lighting: Although primarily a constant voltage supply, SDR-75 can be used in certain LED lighting applications through external constant current drivers, particularly where precise voltage control is needed.

  4. Communication Equipment: Powers small network devices, switches, routers, and other communication infrastructure, supporting stable and reliable data transmission.

  5. Medical Devices: Acts as an auxiliary power source in some low-risk medical devices like patient monitors and small medical testing instruments, with suitable models meeting medical device safety standards.

  6. Building Automation & Smart Homes: Provides power to building automation control systems and smart home devices such as smart locks, thermostats, and automatic curtains.

Case Examples:

  • CNC Machine HMI Power Supply: The SDR-75 series ensures stable power for CNC machine operation panels and displays, preserving clarity and responsiveness without affecting precision machining processes.

  • Large-scale Security Monitoring Center: In extensive surveillance centers, SDR-75 powers multiple surveillance cameras, leveraging its high efficiency and long-term stable operation to minimize maintenance costs and system downtime.


Specifications:

Model SDR-75-12 SDR-75-24 SDR-75-48
Output DC Voltage 12V 24V 48V
Current Range 0-6.3A 0-3.2A 0-1.6A
Rated Power 75.6W 76.8W 76.8W
Ripple Noise(Max) 100mVp-p 120mVp-p 150mVp-p
Voltage Adj.Range 12-14V 24-28V 48-55V
Voltage Tolerance ±1.0% ±1.0% ±1.0%
Line Regulation ±0.5% ±0.5% ±0.5%
Load Regulation ±1.0% ±1.0% ±1.0%
Set up,Rise time 1500ms,60ms/230VAC   3000ms,60ms/115VAC(full load)
Hold up Time 80ms/230VAC     20ms/115VAC(full load)
Input Voltage Range 88 ~264VAC    124~370VDC[DC input operation possible by connecting AC/L(+),AC/N(-)]
Frequency 47 ~ 63Hz
Efficiency 88.5% 89% 90%
AC Current 1.4A/115VAC    0.85A/230VAC
Inrush Curent 30A/115VAC 50A/230VAC
Leakage Current <1mA / 240VAC
Protection Overload Normally works within 110~150% rated output power for more than 3 seconds and then shut down o/p voltage,re-power on to recover
150~170%rated power,constant current limiting with auto-recovery within 3 seconds,and then shut down o/p voltage after 3 seconds,re-power on to recover
Over Voltage 14-17V 29-33V 56-65V
Protection type : Shut down o/p voltahe, re-power on to recover
Over Temperature Shut down o/p voltage,re-power on to receover after temperature goes down
Environment Working Temperature -30~ +70℃ (Refer to derating curve as datasheet from SMUN)
Working Humidity 20 ~ 95% RH non-condensing
Storage Temp.Humidity -40 ~ +85℃, 10 ~ 95% RH
Temp.Coefficient ±0.03%/℃ (0 ~ 50℃)
Vibration Component:10~500Hz,2G 10min./1 cycle,60min. each along X,Y,Z axes; Mounting: Compliance IEC60068-2-6
Safety
Safety Standards Ul508, TUV BS EN/EN62368-1, EAC TP TC 004, BSMI CNS14336-1 approved;(meet BS EN/EN60204-1)
Withstand Voltage I/P-O/P:2KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
Isolation Resistance I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500VDC/25℃/70% RH
EMC Emission Compliance to BS EN/EN55032(CISPR32), BS EN/EN61000-3-2,EAC TP TC 020, CNS13438 Class A
EMC Immunity Compliance to BS EN/EN61000-4-2,3,4,5,6,8,11,BS EN/EN55024, BS EN/EN61000-6-2(BS EN/EN50082-2), heavy industry level, criteria A,EAC TP TC 020
Others MTBF 479.8k hrs MIL-HDBK-217F(25℃)
Dimension 32*125.2*102mm (L*W*H)
Packing 0.51Kg; 28pcs/15.3Kg/1.22CUFT
Note

1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25℃ of ambient temperature. 

2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. 

3. Tolerance : includes set up tolerance, line ragulation and load regulation. 

4. The power supply is considered a component which will be installed into final equipment. The final equipment must be re-confirmed that it still meets EMC directives. 

5. Installation clearances : 40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently with full power.In case the adjacent device is a heat soure, 15mm clearance is recommended

6. Derating may be needed under low input voltage. Please check the derating curve for more details.

7.Please contact with SMUN customer service for more details.



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