- DC Power Supply for Industrial PC
- 4U PS2 ATX 2400W 470mm
- 4U PS2 ATX 2500W 450mm
- 4U PS2 ATX 1600W 370mm
- 4U PS2 ATX 1800W 350mm
- 4U PS2 ATX 1600W 320mm
- 4U PS2 ATX 1200W 270mm
- 4U PS2 ATX 1300W 255mm
- 4U PS2 ATX 1000W 225mm
- 4U PS2 ATX 1100W 200mm
- 4U PS2 ATX 1100W 184mm
- 4U PS2 ATX 1000W 170mm
- 4U PS2 ATX 700W 140mm
- 4U PC AT 450W
- 2U ATX 800W
- 1U ATX 850W 83mm width
- 1U ATX 750W 100mm width
- 1U ATX 920W 147mm width
- SFX DC to DC 660W
- Special size ATX 2700W
- DC PSU FANLESS
- DC PSU OPEN FRAME
- DC PSU SINGLE OUT
- DC PSU REDUNDANT
- Fanless Battery Charger
- Power Source Wire
STC News
Updated: 15/12/2025
12/2025. New Model of DC Input SFX Industrial Power Supplies with up to 660W output Power
Updated: 15/12/2025
12/2025. New Model of DC Input 2U PS2 ATX Industrial Power Supplies with up to 800W output Power
4U ±48V DC Industrial PC PS2 ATX Power Supply (270mm length)
| Series | Model No. | Output Watts | Input Voltage | Input Voltage range | Polarity reverse protection |
| 48 | STC-481200 | 1200W continuous | ±48V DC | ±37V ~ ±71V DC | Not Protected |
| ENVIRONMENTAL CONDITIONS: | |
| ● Cooling: Forced Air-cooling, | 80x80x25 mm Fan x 2 pcs |
| ● Fan type: | DC type, 2 x Ball Bearing, 6200 r.p.m., Optional Fan Control Card |
| ● Fan Noise Level: | 40 dBA (DELTA Fan brand Official Data at 4000 r.p.m. 46.62 CFM) @Full Load |
| ● Fan Noise Level tested: | 58 dBA @ Distance 1m (DELTA Fan brand at 4000 r.p.m. 46.62 CFM) @Full Load |
| ● Fan brand: | DELTA, NMB, SUNON. Specifications are equivalent |
| ● Operating Temperature: | 0°C ~ +50°C (-30°C~+60°C, H version is optional) Full Load |
| ● Output Power: | 100% @ 50°C, 70% @ 60°C , 50% @ 70°C |
| ● Operating Humidity: | 20%~85% RH. (Non condensing) (95% RH 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 | 220A thickness 1.0mm copper / 1 port for Positive terminal / 1 port for Negative Terminal |
| ● Input Current | 19A/38A @Full Load High Line & Low Line |
| ● Inrush Current | Less than 90A Cold start @25°C ambient |
| DC OUTPUT CHARACTERISTICS: | |
| Output Voltage | Regulation | Output Current | Ripple & Noise | |||
| Load | Line | Cross | 1200W | |||
| Min | Max | |||||
| +5V | ±5% | ±1% | ±5% | 0A | 35A | 50mV |
| +12V | 0A | 92A | 120mV | |||
| +3.3V | 0A | 22A | 50mV | |||
| -12V | ±8% | 0A | 0.3A | 120mV | ||
| +5VSB | ±5% | 0A | 4A | 50mV | ||
| Maximum continuous combined load on +3.3 V & +5V DC output shall not exceed | 40 | A | ||||
| Maximum continuous total DC output power shall not exceed | 1200 | Watt | ||||
| OVERALL PERFORMANCE: | |
| ● Efficiency | 75% typical @48V DC Full Load |
| ● Hold up time | The output voltage stays regulated for at least 16ms with 100% load after loss of DC input |
| ● Rise time | The output voltage rise from 10% to 90% with full load shall be in 20ms maximum |
| ● Power Good Signal | TTL Compatible signal, on delay 100~500ms, off delay 1ms min |
| ● Short Circuit Protection (SCP) | All output equipped with SCP (shutdown 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@4.5V, +5V@6V, +12V@15.6V |
| RELIABILITY: | |
| ● MTBF (Mean Time Between Failure): | >90 000 hours @max. Load, 48V DC & 25°C ambient |
| ● Safety Standards | Meet IEC 62368-1, EN 62368-1 |
| ● Safety Approved | |
| ● EMI Compatibility (EMC) Standard | EN 55032:2015/AC:2016, CISPR 32:2015, EN 6100-3-2:2014, |
| EN 6100-3-3:2013, EN 55024:2010 +A1:2015 | |
| ISOLATION:
|
|
| ● INPUT and OUTPUT are isolated by transformers and optical couplers | |
| ● Dielectric Withstand: | INPUT to OUTPUT: 1000V DC for 60 seconds |
| ● Dielectric Withstand: | INPUT to FRAME GROUND: 1000V DC for 60 seconds |
| ● Leakage Current: | <0.005μA @ 48V DC |
| Output Connector specific: | |
| ● ATX 24 Pin x 1: | Molex 29-01-2240 or equivalent |
| ● HDD, DVD 4 pin x 2: | Molex 8981-04P or equivalent |
| ● FDD 4 pin x 2: | AMP 171822-4 or equivalent |
| ● Serial ATA x 8 | Molex 675820000 or equivalent |
| ● CPU EPS 8 Pins x 3: | Molex 39-01-2080 or equivalent |
| ● PCIe x 6 | |
| ● 12VHPWR (12V-2x6) x 1 600W Optional ATX 3.1 compliant | |
| Standard Output Cable Length: | |
| ● 610 mm / 24 inches | |
| PCB specific: | |
| ● 2 layer 1.6 mm | |
| ● Copper: 3 Oz each layer | |
| ● Material: FR4 | |
| ● PCB material origin: Taiwan | |
| Power chassis Dimension: | |
| ● 270(L) x 150(W) x 86(H) mm / 10.63(L) x 5.9(W) x 3.39(H) Inches | |
| Net Weight: | |
| ● 4.7 kg / 10.36 lbs | |
| Gross Weight: | |
| ● 5.3 kg / 11.68 lbs | |
| Packing Detail | |
| ● 2 pcs / Carton | |
| ● N.W. 10.8 kg / 23.8 lbs | |
| ● G.W. 11.8 kg / 26.0 lbs | |
| Measurement of Carton | |
| ● 0.045 m3 / 1.58 Cu.Ft. | |
Input Connector Terminal Pictures:
Optional connection wire
● Single wire, 4AWG, UL1015, standard length 3m (optional length is available)
STC-DTD-270-enclosure - xs.pdf DOWNLOAD_specification_4UATX_STC-481400_270mm.pdf DOWNLOAD_STC-D2D-270-TM40X16X5-20260721.pdf DOWNLOAD_stc-dtd-270_tm200-20260721.pdf DOWNLOAD_terminal_drawing_stc-TM40x16x5-20250825.pdf DOWNLOAD_terminal_drawing_TM200-20250821.pdf
