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February 20, 2023

12 volt 2 Amp Regulated Switching Power Supply with medical approvals 400Hz input

400Hz tutorial
400Hz Tutorial
12 volt 2 amp switching power supply medically qualified and rated

This hard to find 400HZ input 12 volt AC/DC medical grade switching power supply adapter is useful for any application requiring UL/TUV 60601-1 approved 12 volts at 2 amps continuous.

5 volt 500 mA switching power supply with 5.5 x 2.1 mm barrel connector  
Click here for more 400Hz power supplies
PST-EM1024Q2 Medical Approved 12 Volt AC/DC Power Supply Adapters
Quantity 1-10 11-100 101-499 500+
12 volt 2 amp switching power supply medically qualified and rated

$27.25 $25.75 19.80
Optional 12 piece Output adapter barrel plug kit
Call Call Call
Polarity reversing adapter for center-negative products
5.5x2.1mm barrel connector polarity switcher
SDY-C53F (ZHJX002)
adapters with a barrel connector input and screw terminal output
To adapt the barrel connector to screw terminals
$2.50 each

Note on 400Hz operation: we have tested this power supply and found that the efficiency does not decrease at 400Hz operation, the power factor and crest factor of the incoming AC change only slightly, and the temperature rise at full power is the same as 60Hz operation.

Model Number PST-EM1024Q2 replaces the PST-F10242 Medically Approved Switching Power Supply
Input Voltage Range 100-240 VAC
Input Frequency Range 47Hz to 63Hz, 400 Hz
Hold-up time 10mS minimum at full load
Peak Output Power 24 Watts, 30 watts surge
Current 2000mA (2A) continuous, 2500mA (2.5A) surge
Load Regulation ±5% over rated current: 0 - 2 Amps
Stability ±2% after 30 minutes operation
Output Voltage Nominal 12 VDC
Ripple and Noise <240mV
Leakage Current 100 microamps max
Dynamic Load Regulation ±5% excursion for 50% to 100% or 100% to 50% load change at any frequency up to 250Hz, 50% duty cycle
Inrush Current 35A max at 115VAC cold start
70A max at 230VAC cold start
Shock and Vibration 3-axis 0.5 mm displacement 2Hz to 55Hz to 2Hz, 7 minutes per cycle for 30 minutes
Shipping Shock 900mm drop in shipping container 8 times
Altitude 10,000 feet operation
40,000 feet storage
Input Connector IEC C7, two prong input socket allows cords for any country to be used, the North American cord is included.
Output plug 5.5 x 2.1 mm barrel connector, center positive, see below for others
Dimensions 50mm x 32 mm x 90mm (2 inch x 1.25 inch x 3.5 inch)
Agency approvals UL, cUL, TUV 60601-1, EN60601-1, UL60601-1, CE
EMI/EMC FCC Part 15 Class B and SCPR Class B
Other Registration ROHS, Energy Star Efficiency Level III,
Weight 160 grams, 5.7 oz. without the AC cord
264 grams, 9.3 oz. with the AC cord
292 grams, 10.3 oz. including cord and individual packing box
  medical IEC60601
MTBF 30000 hours at 90% confidence level at 220VAC input, full load and 40°C ambient.

A 5.5 x 2.1 mm barrel connector is supplied      
Optional DC Plugs slip over the 5.5 x 2.1 mm connector if desired.
  • 2.35 OD x 0.7 ID Barrel
  • 3.0 OD x 1.1 ID Barrel
  • 3.5 OD x 1.35 ID Barrel
  • 4.0 OD x 1.7 ID Barrel
  • 4.75 mm OD x 1.75 mm ID Barrel EIAJ-03
  • 5.0 mm OD x 3.5 mm ID with center pin
  • 5.5 mm OD x 1.5 mm ID type 2 Barrel
  • 5.5 mm OD x 2.5 mm ID Barrel
  • 6.3 OD x 3.0 ID center pin Barrel
  • 6.0 OD x 4.4 ID center pin Barrel
  • 7.4 mm OD x 5.0 center pin ID Barrel
  • 7.9 OD x 5.6 ID center pin Barrel

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