1U ±24V DC Industrial PC ATX FANLESS Redundant Power Supply


1U ±24V DC Industrial PC ATX FANLESS Redundant Power Supply

Series

Model No.

Output Watts

Input Voltage

Input Voltage range

Polarity reverse protection

24

STC-24450RDM

450W continuous

±24V DC

±18V ~ ±36V DC

By fuse

ENVIRONMENTAL CONDITIONS: 
● Operating Temperature: 0°C ~ +50°C Full Load
● Output Power: 
100% @ 50°C, 70% @ 60°C 
● Operating Humidity: 20%~85% RH. (Non condensing) (95% Optional)
● Storage Temperature -20°C~+80°C  
● Storage Humidity: 
10%~90% RH. (Non condensing)
● Operating Altitude 10M Below Sea level and 3000M Above Sea level


DC INPUT CHARACTERISTICS:
● Input connector type 30A/ 300V UL Approved Gold Plated Brass 1.2t/2-Pin Terminal 
● Input Current  
15.6A/29.6A (450W) @ Full Load High Line & Low Line
● Inrush Current Less than 20A Cold start @25°C ambient 


DC OUTPUT CHARACTERISTICS: 

 

Output Voltage

Regulation

Output Current

Ripple & Noise

Load

Line

Cross

450W

Min

Max

+5V

±5%

±1%

±5%

0A

20A

50mV

+12V

0A

36A

120mV

+3.3V

0A

20A

50mV

-12V

±8%

0A

0.5A

120mV

-5V(optional) ±5%
50mV

+5VSB

±5%

0A

3.5A

50mV

Maximum continuous combined load on +3.3 V & +5V DC output shall not exceed

166

Wattage

Maximum continuous combined load on +3.3 V & +5V & 12V DC output shall not exceed

432.5

Maximum continuous total DC output power shall not exceed

450

OVERALL PERFORMANCE:   
● Efficiency 75% typical @24V DC Full Load
● Hold up time 
When power shut down DC output 5V must be maintain 1ms @24V DC 
● Power Good Signal   TTL Compatible signal, on delay 100~500ms, off delay 1ms min
● Short Circuit Protection (SCP) 
All output equipped with SCP (shutdows and latch off) 
● Over Power Protection (OPP) Peak power protected to 130%±10% of continuous rated power

(shutdown and latch off) 
● Over Voltage Protection (OVP) +3.3V@3.6V~4.3V, +5V@5.5V~6.5V, +12V@13.2V~15.6V


RELIABILITY:
● MTBF (Mean Time Between Failure): 100 000 hours @max. Load, 24V DC & 25°C ambient 
● Safety Standards Meet IEC60950-1, EN60950-1
● Safety Approved
● EMI Compatibility (EMC) Standard

EN55032: 2015/AC: 2016, Class A; EN55035: 2017;
CISPR32: 2015 (Ed 2.0)/C1: 2016, IEC6100-4-2: 2008;
EN6100-3-2: 2014; IEC6100-4-3: 2006+A1: 2007+A2: 2010;


EN6100-3-3: 2013; IEC6100-4-4: 2012; IEC6100-4-5: 2014+A1: 2017;
IEC6100-4-6: 2013+CAR1: 2015;
IEC6100-4-8: 2009; IEC6100-4-11: 2004+A1: 2017


ISOLATION: 

● INPUT and OUTPUT are isolated by transformers and optical couplers 
● Dielectric Withstand: INPUT to OUTPUT: 500V DC for 60 seconds
● Dielectric Withstand: INPUT to FRAME GROUND: 500V DC for 60 seconds
● Leakage Current: <0.005μA @24V DC


LED Indicator:
● Power module 1: Green LED when Power On
● Power module 2: Green LED when Power On 


Alarm function:
● In the rear panel with power failure alarm signal to indicate when power failure wire 


Alarm reset switch:
● To reset by switch 


Output Connector specific:
● ATX 24 Pin x 1: Molex 29-01-2240 or equivalent
● +12V(P4) 4 pin x 1: Molex 39-01-2040 or equivalent
● HDD, DVD 4 pin x 4: Molex 8981-04P or equivalent
● FDD 4 pin x 1: AMP171822-4 or equivalent
● Serial ATA x 4: 
Molex 675820000 or equivalent
● CPU EPS 8 Pins x 1: 
Molex 39-01-2080 or equivalent
● PCIe 12V 6+2 pin x 2 



Standard Output Cable Length: 
● 550mm ± 50mm / 21.6 inches

PCB specific: 
●    6 layer  
●    Copper: 3 Oz each layer
●    Thickness: 1.6 mm 
●    Material: FR4 
●    PCB material origin: Taiwan 

Power chassis Dimension: 
● 450(L) x 200(W) x 41.3(H) mm / 17.71(L) x 7.87(W) x 1.62(H) Inches 

Note 
● Power Supply is not able to be used in stand alone application 
● Use Power Supply in Power Chassis Assembly only   

DOWNLOAD_specification_RD_STC-24450RDM.pdf
DOWNLOAD_DRAWING_stc-rd-450-M-20240205-3.pdf