Power Supply 24V DC ATX 850W (18-36VDC)
The STC-24850 is an industrial DC-DC power supply in PS/2 ATX format with 850 W continuous output. It operates from a nominal ±24 V DC input across a ±18 V to ±36 V DC range and combines forced-air cooling, input-to-output isolation and electrical protection for industrial computers.
Model: STC-24850
Output power: 850W continuous
Input voltage - ±24V
DC input range - ±18V ~ ±36V DC
ENVIRONMENTAL CONDITIONS:
● Cooling: forced-air cooling, 80x80x25 mm fan x 2 PCs
● Fan type: DC type, 2 x ball bearings, 6200 r.p.m., optional fan control card
● Fan brand: SUNON, DELTA, ADDA, NMB. Specifications are equivalent
● Operating temperature: 0°C ~ +50°C (-20°C~+60°C optional) at full load
● Output power: 100% @ 50°C
● Output power: 70% @ 60°C
● Output power: 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: 200A/300V UL-approved gold-plated brass 2 Pin 12.5mm screw terminal
● Input current: 54A/110A(850W) @Full Load High Line & Low Line
● Inrush current less than 90A, cold start at @25°C ambient temperature
DC OUTPUT CHARACTERISTICS:
| Output voltage | Regulation | Output current | Ripple & noise | |||
| Load | Line | Cross | 850W | |||
| Min | Max | |||||
| +5V | ±5% | ±1% | ±5% | 0A | 30A | 50mV |
| +12V | 0A | 60A | 120mV | |||
| +3.3V | 0A | 30A | 50mV | |||
| -12V | ±8% | 0A | 1A | 120mV | ||
| -5V(optional) | Optional | Optional | 50mV | |||
| +5VSB | ±5% | 0A | 3.5A | 50mV | ||
| Maximum continuous combined load on +3.3 V & +5V DC outputs shall not exceed | 250 | Watts | ||||
| Maximum continuous combined load on +3.3 V & +5V & 12V DC outputs shall not exceed | 820 | |||||
| Maximum continuous total DC output power shall not exceed | 850 | |||||
OVERALL PERFORMANCE:
● Typical efficiency of 75% @24V DC at full load
● Rise time
● TTL-compatible Power Good signal, on-delay 100~500ms, off-delay 1ms min
● Short Circuit Protection (SCP) All outputs 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 Failures): >90,000 hours at max. load, 24V DC power supply and 25°C ambient temperature
● Safety Standards: Complies with IEC60950-1, EN60950-1
● Safety Approvals:
● EMI Compatibility (EMC) Standard: EN55032:2015/AC:2016, CISPR32:2015, EN61000-3-2:2014,
EN61000-3-3:2013, EN55024:2010 +A1:2015
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 chassis GROUND: 500V DC for 60 seconds
● Leakage Current: <0.005μA at 24V DC
Output Connector Specifications:
● ATX 24-pin x1: Molex29-01-2240 or equivalent
● +12V(P4) 4-pin x1: Molex 39-01-2040 or equivalent
● HDD, DVD 4-pin x2: Molex 8981-04P or equivalent
● FDD 4-pin x2: AMP171822-4 or equivalent
● Serial ATA x8: Molex 675820000 or equivalent
● EPS 8-pin x 1: Molex 39-01-2080 or equivalent
● PCIe x 2
Standard Output Cable Length:
● 530 mm / 20.87 inches
Power Supply Chassis Dimensions:
● 184(L) x 150(W) x 86(H) mm / 7.24(L) x 5.9(W) x 3.39(H) inches
Net Weight:
● 3.5 kg / 7.716 lbs
Gross Weight:
● 4 kg / 8.818 lbs
Packing Details
● 4 PCs
● GW 15.6 kg
Carton Dimensions
● 36 x 35 x 51 cm
● 0.066 m3 / 2.33 Cuft