AC/DC Power Supplies

Delta Electronics MEB-1K2A Series Medical / Industrial AC/DC Power Supply

The Delta Electronics MEB-1K2A series delivers 1,200W of continuous output power in a compact enclosed chassis designed for demanding medical and industrial environments. Available in 24V, 42V, and 48V output configurations, the series accepts a universal 85–264Vac input and maintains full rated output power from 90V to 264Vac and up to 50°C ambient — making it well-suited for deployment across diverse power infrastructure.

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MEB-1K2A_IMG

Features

  • Input voltage range: 85–264Vac, full power from 90V to 264Vac.
  • Output voltage: main output available in 24Vdc, 42Vdc, or 48Vdc; plus 5V / 2A standby.
  • Output current: 0–50A (24V model), 0–28.5A (42V model), 0–25A (48V model).
  • Output power: 1,200W maximum.
  • Efficiency: up to 94% (48V model at 230Vac).
  • 2 x MOPP isolation; suited for Type BF medical products.
Specifications
INPUT RATINGS/CHARACTERISTICS
Nominal Input Voltage 100-240 Vac
Input Voltage Range 85-264 Vac
Nominal Input Frequency 50-60 Hz
Input Frequency Range 47-63 Hz
Input Current (max) 15 A
Full load Efficiency (typ.)

For 24 V output Model

 

For 42 V output Model

 

For 48 V output Model

90% @ 115 Vac/60 Hz
93% @ 230 Vac/50 Hz, Reference Fig. 1

90.9% @ 115 Vac/60 Hz
93.2% @ 230 Vac/50 Hz, Reference Fig. 1-1

91.5% @ 115 Vac/60 Hz
94% @ 230 Vac/50 Hz, Reference Fig. 1-2
Inrush Current (max) 40 A @ 264 Vac, cold/hot start
Input-PE (protective earth) leakage current (max) 0.3 mA @ NC, 1 mA @ SFC¹
Output-PE (protective earth) leakage current for Type BF application (max) 0.1 mA @ NC, 0.5 mA @ SFC¹
1. NC: normal condition, SFC: single fault condition
LEAKAGE CURRENT
Input-PE Leakage Current 100 Vac/60 Hz(Typ) 264 Vac/60 Hz(Typ) Delta Limit IEC60601-1 Limit
Normal Condition 92.1 236.6 300 uA max 5000 uA max
Single Fault Condition 174.3 459.3 1000 uA max 10000 uA max
Output-PE Leakage Current for Type BF application -
Normal Condition 31.2 79.3 100 uA max 100 uA max
Single Fault Condition 66.2 169.5 500 uA max 500 uA max
OUTPUT RATINGS/CHARACTERISTICS
Total Regulation ± 3%
Output Power (max) 1200 W
Line Regulation (max) 1%
Load Regulation (max) 2%
Ripple & Noise (typ.) 1% pk-pk Vrated @ rated load, Reference Fig. 2
Voltage Trimming Range ± 10% Vrated
Dynamic Response (Overshoot & Undershoot O/P Voltage) ± 5% @ with 50-100% load change
Start-up Time (max) 2000 ms with AC turn on
Hold-up Time (min) 16 ms @ 1000 W load, with nominal input range
20 ms @ 800 W load, with nominal input range
Capacitive Load (max) 6000 uF
Rise Time (max) <50 ms
Remote Sense Up to 500 mV compensation for voltage drop across external wire connections to load.
Short and reverse connection protected.
Nominal Output Voltage of standby output (Vrated) 5 V
Nominal Output Current of standby output 2 A
Total Regulation of standby output ± 3%
Ripple & Noise of standby output 100 mV max
MECHANICAL
Package Enclosed
Dimensions (W x L x H) 127 x 204 x 40.5 mm (5 x 8.03 x 1.59 inch)
Unit Weight 1.5 kg (3.3 lb)
ENVIRONMENT
Surrounding Air Temperature

Operating

 

Storage

Absolute Maximum/Minimum Rating.
-20°C to +70°C. Linear power derate from 100% load at
50°C, to 50% load at 70°C
Note: see power de-rating curves below

-40°C to +85°C
Operating Humidity 5-95% RH (Non-Condensing)
Operating Altitude Up to 5,000 meters (up to 16,400 feet or 106-54 kPa)
Non-Operating Altitude Up to 5,575 meters (up to 18,290 feet or 106-50 kPa)
Shock Test  (Non-Operating) 50 G, 11 ms, 3 shocks for each direction
Vibration (Operating) 5-500 Hz, 2 Grms, 15 minute for each three axis
Acoustic Noise <45 dB test with 1000 W under 30°C 1)
1) Acoustic Noise test set up according to ISO-7779
PROTECTIONS 
(For both main output and 5 Volt Standby outputs, unless otherwise indicated)
Overvoltage (max) Main output 145% of rated normal voltage, Latch Mode
Standby 125% of rated voltage, Latch Mode
Over load / Over current (max) Main output 130% of rated current, constant current
clamped
Standby 3.2A max with Hiccup Mode(Non-Latching,
Auto-Recovery)
Over Temperature Latch Mode for Main output
Short Circuit Hiccup Mode for Main output and Standby
(Non-Latching, Auto-Recovery)
RELIABILITY DATA
MTBF(Minimum) at 115 Vac, 1200 W, 35 °C 500 Khrs based on Telecordia SR-332
Operating life(Minimum) at 115 Vac, 1200 W, 25°C 26,280 hrs
SAFETY STANDARDS/DIRECTIVES
Medical Safety IEC 60601-1 CB report
TUV EN 60601-1
UL 60601-1+CAN/CSA 60601-1
ITE Safety IEC 60950-1, IEC 62368-1 CB report
TUV EN 60950-1
UL 60950-1+CAN/CSA 60950-1
UL 62368-1+CAN/CSA 62368-1
CCC GB 17625.1; GB 4943.1; GB/T 9254.1
BIS
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
UKCA In conformance with Electrical Equipment (Safety)
Regulations 2016, and Electromagnetic Compatibility
Regulations 2016,
Medical Devices Regulations 2002 (UK MDR 2002)
Galvanic Isolation Input to/Output (2XMOPP)
Input to/Ground (1XMOPP)
Output to/Ground (1XMOPP)		 4000 Vac
1500 Vac
1500 Vac (Type BF application rated)
EMC
EMC / Emissions EN/BS EN 55011 / EN/BS EN 55032, FCC Title 47: Class B
Harmonic Current Emissions IEC 61000-3-2 Meet Class D limit
Voltage Flicker IEC 61000-3-3  
Immunity  
Electrostatic Discharge IEC 61000-4-2 Level 3 Criteria A¹⁾ ⁵⁾
Air Discharge: 15 kV
Contact Discharge: 8 kV
Radiated Field  IEC 61000-4-3

Criteria A¹⁾
80 MHz-2700 MHz, 10 V/m AM modulation

Level 2 Criteria A ¹⁾ ⁵⁾
385 MHz-5785 MHz, 28 V/m Pulse mode and other
modulation
Electrical Fast Transient / Burst IEC 61000-4-4

Level 3 Criteria A¹⁾ 2 kV
Surge IEC 61000-4-5

Level 3 Criteria A¹⁾ ⁵⁾
Common Mode³⁾: 2 kV
Differential Mode⁴⁾: 1 kV
Conducted IEC 61000-4-6 Level 2 Criteria A¹⁾ ⁵⁾
150 kHz-80 MHz, 3 Vrms, 6 Vrms at ISM bands and
Amateur radio bands
Power Frequency Magnetic Fields IEC 61000-4-8 Criteria A¹⁾ ⁵⁾
Magnetic field strength 30 A/m
Voltage Dips IEC 61000-4-11 30% 10 ms Criteria A¹⁾
60% 100 ms Criteria B²⁾
100% 5000 ms Criteria B²⁾
Voltage Dips ⁵⁾ IEC 60601-1-2 Criteria A ¹⁾ @ 1000 W
0% UT, 0.5 cycle(10 ms)
(0°,45°,90°,135°,180°,225°,270°,315°,360°)
Criteria B ²⁾,can meet Criteria A with 800 W or lower load
0% UT, 1 cycle (20 ms), 0°
Criteria B ²⁾
70% U T, 25 cycle (500 ms) , 0°
Criteria B ²⁾
0% U T, 250 cycle (5000 ms) , 0°

1) Criteria A: Normal performance within the specification limits
2) Criteria B: Output out of regulation, or shuts down during test. Automatically restored to normal operation after test.
3) Asymmetrical: Common mode (Line to earth)
4) Symmetrical: Differential mode (Line to line)
5) Compliant with IEC 60601-1-2 4th Edition
Selection Table
MODEL NUMBER INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT CURRENT
MEB-1K2A24 85-264 Vac 24 Vdc 0-50 A
MEB-1K2A42 42 Vdc 0-28.5 A
MEB-1K2A48 48 Vdc 0-25 A
Technical Illustrations
GA_Drawing_MEB-1K2A
Downloads
Datasheet_MEB-1K2A24T.pdf
INPUT RATINGS/CHARACTERISTICS
Nominal Input Voltage 100-240 Vac
Input Voltage Range 85-264 Vac
Nominal Input Frequency 50-60 Hz
Input Frequency Range 47-63 Hz
Input Current (max) 15 A
Full load Efficiency (typ.)

For 24 V output Model

 

For 42 V output Model

 

For 48 V output Model

90% @ 115 Vac/60 Hz
93% @ 230 Vac/50 Hz, Reference Fig. 1

90.9% @ 115 Vac/60 Hz
93.2% @ 230 Vac/50 Hz, Reference Fig. 1-1

91.5% @ 115 Vac/60 Hz
94% @ 230 Vac/50 Hz, Reference Fig. 1-2
Inrush Current (max) 40 A @ 264 Vac, cold/hot start
Input-PE (protective earth) leakage current (max) 0.3 mA @ NC, 1 mA @ SFC¹
Output-PE (protective earth) leakage current for Type BF application (max) 0.1 mA @ NC, 0.5 mA @ SFC¹
1. NC: normal condition, SFC: single fault condition
LEAKAGE CURRENT
Input-PE Leakage Current 100 Vac/60 Hz(Typ) 264 Vac/60 Hz(Typ) Delta Limit IEC60601-1 Limit
Normal Condition 92.1 236.6 300 uA max 5000 uA max
Single Fault Condition 174.3 459.3 1000 uA max 10000 uA max
Output-PE Leakage Current for Type BF application -
Normal Condition 31.2 79.3 100 uA max 100 uA max
Single Fault Condition 66.2 169.5 500 uA max 500 uA max
OUTPUT RATINGS/CHARACTERISTICS
Total Regulation ± 3%
Output Power (max) 1200 W
Line Regulation (max) 1%
Load Regulation (max) 2%
Ripple & Noise (typ.) 1% pk-pk Vrated @ rated load, Reference Fig. 2
Voltage Trimming Range ± 10% Vrated
Dynamic Response (Overshoot & Undershoot O/P Voltage) ± 5% @ with 50-100% load change
Start-up Time (max) 2000 ms with AC turn on
Hold-up Time (min) 16 ms @ 1000 W load, with nominal input range
20 ms @ 800 W load, with nominal input range
Capacitive Load (max) 6000 uF
Rise Time (max) <50 ms
Remote Sense Up to 500 mV compensation for voltage drop across external wire connections to load.
Short and reverse connection protected.
Nominal Output Voltage of standby output (Vrated) 5 V
Nominal Output Current of standby output 2 A
Total Regulation of standby output ± 3%
Ripple & Noise of standby output 100 mV max
MECHANICAL
Package Enclosed
Dimensions (W x L x H) 127 x 204 x 40.5 mm (5 x 8.03 x 1.59 inch)
Unit Weight 1.5 kg (3.3 lb)
ENVIRONMENT
Surrounding Air Temperature

Operating

 

Storage

Absolute Maximum/Minimum Rating.
-20°C to +70°C. Linear power derate from 100% load at
50°C, to 50% load at 70°C
Note: see power de-rating curves below

-40°C to +85°C
Operating Humidity 5-95% RH (Non-Condensing)
Operating Altitude Up to 5,000 meters (up to 16,400 feet or 106-54 kPa)
Non-Operating Altitude Up to 5,575 meters (up to 18,290 feet or 106-50 kPa)
Shock Test  (Non-Operating) 50 G, 11 ms, 3 shocks for each direction
Vibration (Operating) 5-500 Hz, 2 Grms, 15 minute for each three axis
Acoustic Noise <45 dB test with 1000 W under 30°C 1)
1) Acoustic Noise test set up according to ISO-7779
PROTECTIONS 
(For both main output and 5 Volt Standby outputs, unless otherwise indicated)
Overvoltage (max) Main output 145% of rated normal voltage, Latch Mode
Standby 125% of rated voltage, Latch Mode
Over load / Over current (max) Main output 130% of rated current, constant current
clamped
Standby 3.2A max with Hiccup Mode(Non-Latching,
Auto-Recovery)
Over Temperature Latch Mode for Main output
Short Circuit Hiccup Mode for Main output and Standby
(Non-Latching, Auto-Recovery)
RELIABILITY DATA
MTBF(Minimum) at 115 Vac, 1200 W, 35 °C 500 Khrs based on Telecordia SR-332
Operating life(Minimum) at 115 Vac, 1200 W, 25°C 26,280 hrs
SAFETY STANDARDS/DIRECTIVES
Medical Safety IEC 60601-1 CB report
TUV EN 60601-1
UL 60601-1+CAN/CSA 60601-1
ITE Safety IEC 60950-1, IEC 62368-1 CB report
TUV EN 60950-1
UL 60950-1+CAN/CSA 60950-1
UL 62368-1+CAN/CSA 62368-1
CCC GB 17625.1; GB 4943.1; GB/T 9254.1
BIS
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
UKCA In conformance with Electrical Equipment (Safety)
Regulations 2016, and Electromagnetic Compatibility
Regulations 2016,
Medical Devices Regulations 2002 (UK MDR 2002)
Galvanic Isolation Input to/Output (2XMOPP)
Input to/Ground (1XMOPP)
Output to/Ground (1XMOPP)		 4000 Vac
1500 Vac
1500 Vac (Type BF application rated)
EMC
EMC / Emissions EN/BS EN 55011 / EN/BS EN 55032, FCC Title 47: Class B
Harmonic Current Emissions IEC 61000-3-2 Meet Class D limit
Voltage Flicker IEC 61000-3-3  
Immunity  
Electrostatic Discharge IEC 61000-4-2 Level 3 Criteria A¹⁾ ⁵⁾
Air Discharge: 15 kV
Contact Discharge: 8 kV
Radiated Field  IEC 61000-4-3

Criteria A¹⁾
80 MHz-2700 MHz, 10 V/m AM modulation

Level 2 Criteria A ¹⁾ ⁵⁾
385 MHz-5785 MHz, 28 V/m Pulse mode and other
modulation
Electrical Fast Transient / Burst IEC 61000-4-4

Level 3 Criteria A¹⁾ 2 kV
Surge IEC 61000-4-5

Level 3 Criteria A¹⁾ ⁵⁾
Common Mode³⁾: 2 kV
Differential Mode⁴⁾: 1 kV
Conducted IEC 61000-4-6 Level 2 Criteria A¹⁾ ⁵⁾
150 kHz-80 MHz, 3 Vrms, 6 Vrms at ISM bands and
Amateur radio bands
Power Frequency Magnetic Fields IEC 61000-4-8 Criteria A¹⁾ ⁵⁾
Magnetic field strength 30 A/m
Voltage Dips IEC 61000-4-11 30% 10 ms Criteria A¹⁾
60% 100 ms Criteria B²⁾
100% 5000 ms Criteria B²⁾
Voltage Dips ⁵⁾ IEC 60601-1-2 Criteria A ¹⁾ @ 1000 W
0% UT, 0.5 cycle(10 ms)
(0°,45°,90°,135°,180°,225°,270°,315°,360°)
Criteria B ²⁾,can meet Criteria A with 800 W or lower load
0% UT, 1 cycle (20 ms), 0°
Criteria B ²⁾
70% U T, 25 cycle (500 ms) , 0°
Criteria B ²⁾
0% U T, 250 cycle (5000 ms) , 0°

1) Criteria A: Normal performance within the specification limits
2) Criteria B: Output out of regulation, or shuts down during test. Automatically restored to normal operation after test.
3) Asymmetrical: Common mode (Line to earth)
4) Symmetrical: Differential mode (Line to line)
5) Compliant with IEC 60601-1-2 4th Edition
MODEL NUMBER INPUT VOLTAGE OUTPUT VOLTAGE OUTPUT CURRENT
MEB-1K2A24 85-264 Vac 24 Vdc 0-50 A
MEB-1K2A42 42 Vdc 0-28.5 A
MEB-1K2A48 48 Vdc 0-25 A
GA_Drawing_MEB-1K2A
Datasheet_MEB-1K2A24T.pdf

Find the Right Model

Model Number Input Voltage (Vac) Output Voltage (Vdc) Output Current (A)
product variant MEB-1K2A24T 85-264 Vac 24 Vdc 0-50 A
product variant MEB-1K2A42T 85-264 Vac 42 Vdc 0-28.5 A
product variant MEB-1K2A48T 85-264 Vac 48 Vdc 0-25 A

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