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 amb...

Certified to IEC 60601-1 with 2 x MOPP isolation and rated for Type BF medical products, the MEB-1K2A meets the isolation and leakage current performance required for patient care environments. An integrated 5V / 2A standby rail (no minimum load required) supports system management functions independently of the main output. PMBus Ver 1.3, current sharing, remote on/off, analog and digital voltage trimming, and remote sense (up to 500mV compensation) provide the control and flexibility required for complex system architectures.

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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.
IEC 60601-1-2 4th Edition immunity compliant.
Current sharing supported.
Conformal coating.
Remote on/off, power good, and remote sense supported.
Analog and digital voltage trimming (±10% Vrated).
PMBus Ver 1.3 supported.
Intelligent fan speed control.

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 Drawings

Downloads

Datasheet_MEB-1K2A24T.pdf

Warranty & Returns

Warranty periods vary by product. Please refer to the Powerbox Warranty Policy for the applicable coverage period against manufacturing defects from date of purchase. For returns and RMA requests, please visit our RMA support page or contact our support team directly.

FAQs

What is the Delta MEB-1K2A Series and what are its output specifications?

The MEB-1K2A is a 1200W medical and industrial AC/DC power supply in an internal panel-mount format, available in 24Vdc output models with high output current capability for demanding equipment.

What medical and safety certifications does the MEB-1K2A hold?

Certified to IEC 60601-1 and UL 60601-1 / ANSI/AAMI ES60601-1 / CAN/CSA C22.2 No. 60601-1 for medical electrical equipment safety, plus IEC 62368-1 for ITE/AV applications — dual-certified for both medical and industrial deployment. 2×MOPP input-to-output isolation. CE and UKCA marking.

Does the MEB-1K2A also support non-medical industrial applications?

Yes. The MEB series is certified for both medical and industrial use, holding IEC 62368-1 (audio/video and IT equipment) and IEC 60950-1 certifications in addition to the medical standard.

What input voltage range does the MEB-1K2A accept?

Universal 90–264Vac input, suitable for worldwide mains supplies.

What efficiency does the MEB-1K2A achieve?

It achieves approximately 92% typical efficiency, reducing heat generation in high-power medical enclosures.

How does the MEB-1K2A compare to the MEB-750A and MEB-1K5A?

The MEB-750A (750W), MEB-1K2A (1200W), and MEB-1K5A (1500W) are all from the same Delta MEB medical/industrial family. Select based on your equipment's total power budget.