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Delta MDS-350AD701 350W medical ATX PSU rear view showing AC inlet, switch, and cooling fan
Delta MDS-350AD701 350W medical ATX PSU rear view showing AC inlet, switch, and cooling fan

Delta MDS-350AD701 350W, 12V Medical ATX 1U Power Supply

2 Years Warranty

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Product Code: PSEL-240

MPN #: MDS-350AD701

Losing data because your system powers down at the worst moment is frustrating. The Delta MDS-350AD701 350W, 12V Medical ATX 1U Power Supply delivers reliable 350 W of steady 12 V power, keeping computers, workstations and industrial controllers running smoothly without flicker or unexpected drops.

Why Choose a Delta Power Supply

Many buyers worry about compatibility and safety when selecting a power supply for medical or industrial use. They often fear voltage spikes, insufficient output or lack of certifications. This unit removes those doubts with universal 90-264 Vac input, built-in active PFC and full IEC 60601-1 and IEC 62368-1 approvals, ensuring safe operation in demanding environments.

Key Features of a 350W Power Supply
  • Universal Input Voltage: 90-264 Vac. Works with any global mains supply.
  • Output Power: 350W. Provides enough headroom for high-performance ATX systems.
  • Active PFC: Improves efficiency and reduces harmonic distortion.
  • Efficiency: 82 % @115 Vac, 85 % @230 Vac. Saves energy and lowers operating cost.
  • Line Regulation: ±0.5 %. Keeps voltage stable under load changes.
  • Hold-up Time: 17 ms @115 Vac/60 Hz. Maintains power briefly during short outages.
  • Protection - Overvoltage: Latch mode limits voltage to safe levels for each rail.
  • Protection - Overload: Latch mode cuts off at 25 A on major outputs, protecting components.

Usages of a 350W Power Supply

Ideal for medical equipment requiring type BF patient access, industrial controllers, and high-reliability workstations where uninterrupted 12 V power is critical.

Benefits of Delta Power Supply
  • Safety Assurance: Certified to medical and industrial standards for peace of mind.
  • Long-Term Reliability: MTBF of 500 K hrs and 26 280 hrs capacitor life reduce maintenance.
  • Compact Design: 1U size (194 × 100 × 40.5 mm) fits tight racks easily.
  • Low Noise Operation: Forced cooling keeps temperatures down without loud fans.
  • Environmental Compliance: RoHS, UL/CE and CB certifications ensure responsible use.

Specifications
Input Ratings / Characteristics  
Nominal Input Voltage 100–240 Vac
Input Voltage Range 90–264 Vac
Nominal Input Frequency 50–60 Hz
Input Frequency Range 47–63 Hz
Input Current (max) 6 A
Input Surge Voltage (max) 300 Vac for 100 ms
Full load Efficiency (typ.) 82% @ 115 Vac / 60 Hz
85% @ 230 Vac / 50 Hz
Inrush Current (max) No damage, cold start
Leakage Current (max) 0.1 mA @ NC0.3 mA @ SFC
Output-PE (protective earth) Leakage current for BF application (max) 0.1 mA @ NC, 0.5 mA @ SFC
Power Factor (min) 0.90 @ 115 V / 50 Hz, 230 V / 50 Hz, full load
Output Ratings / Characteristics  
Nominal Output Voltage (V rated) +12 V1, +12 V2, +5 V, +3.3 V, +5 Vsb, -5 V, -12 V
Output Power 350W
Line Regulation (max) ±0.5%
Start-up Time (max) (Remote On_Off @ TTL Low, then AC applied) 1000 ms @ 115 Vac
Hold-up Time (min) 17 ms @ 115 Vac / 60 Hz
Dynamic Response (Overshoot & Undershoot O/P Voltage) ±10% @ 50–100% load
Rise Time (max) 20 ms
Remote On_Off/INHIBIT TTL Active Low: Output Enable
TTL Active High: Output Disable
Mechanical  
Case Chassis SECC (Steel, Electrogalvanized, Cold Rolled, Coil)
Case Cover SECC (Steel, Electrogalvanized, Cold Rolled, Coil)
Dimensions (L × W × H) 194 × 100 × 40.5 mm (7.64 × 3.94 × 1.59 inch)
Unit Weight (typ.) 1.2 kg (2.6 lb)
Cooling System Forced Cooling
Environment  
Surrounding Air Temperature Operating: 0 °C to +50 °C
Storage: -40 °C to +85 °C
Operating Humidity 5–95% RH (Non-Condensing)
Operating Altitude 5,000 meters (16,400 feet)
Shock Test (Non-Operating) 50 G, 11 ms, 3 shocks for each direction
Vibration (Operating) 5–500 Hz, 2 Grms, 15 minutes for each of three axes
Protections  
Overvoltage For +3.3V output, Maximum voltage < 4.8V
For +5V output, Maximum voltage < 7V
For +12V1 & +12V2 outputs, Maximum voltage < 16V
Protection Method: Latch Mode
For +5Vsb output, Maximum voltage < 10V
Protection Method: Latch Mode
Overload / Overcurrent For +3.3V output, Maximum current < 25A
For +5V output, Maximum current < 25A
For +12V1/+12V2 output, Maximum current < 25A
Protection Method: Latch Mode
For +5Vsb output, Maximum current < 5A
Protection Method: Auto-recovery Mode
Over Temperature Protection Method: Latch Mode
Short Circuit +3.3V, +5V, +12V1 and +12V2, Protection Method: Latch Mode+5Vsb
Protection Method: Auto-recovery
Reliability  
MTBF 500 K hrs based on Telecordia SR-332
Expected Cap Life Time 26,280 hrs
Safety  
Electrical Safety IEC60950-1 (Ed.2,2005) & IEC 62368-1 CB report
CE In conformance with EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU
EN 60601-1: 2006 + A11: 2011 + A1: 2013 + A12: 2014 & EN 60601-1-2: 2015
Medical Safety IEC 60601-1
EN60601-1
CAN/CSA-C22.2 No. 60601-1
ANSI/AAMI ES60601-1
Galvanic Isolation Input to Output (2XMOPP): 4000 Vac
Input to/Ground (1XMOPP): 1500 Vac
Output to/Ground (1XMOPP): 1500 Vac (Type BF application rated)
UKCA In conformance with Electrical Equipment (Safety) Regulations 2016
Electromagnetic Compatibility Regulations 2016
Medical Devices Regulations 2002 (UK MDR 2002)
EMC  
Emission EN/BS EN 55011 & Compliant with EN/BS EN 55032, FCC Title 47: Class B
Harmonic Current Emissions IEC 61000-3-2: Meet Class D limit
Voltage Fluctuation and Flicker IEC 61000-3-3
ESD Immunity IEC 61000-4-2
Radiated Immunity IEC 61000-4-3
IEC 60601-1-2
EFT IEC 61000-4-4
Surge IEC 61000-4-5
Conducted Immunity IEC 61000-4-6
Magnetic Field IEC 61000-4-8
Voltage Dips IEC 60601-1-2
IEC 61000-4-11
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