TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
1
Input
Input Voltage
85VAC ~ 264VAC
Input Frequency
47Hz ~ 63Hz
Input Current
<15A
Inrush Current
<40A
Power Factor
>0.95 @ rated load
Efficiency
Up to 94% 1)
Patient Leakage Current
<100uA normal, <500uA SFC
Earth Leakage Current
<300uA normal, <1mA SFC
Output
Output Voltage
24V
48V
Output Current
0-50A
0-25A
Ripple & Noise
<1% Vrated pk-pk
Standby Power
5V / 2A (No minimum load required)
Environmental
MTBF
500KHrs
Operation Temperature
-20°C ~70°C 2)
Operation Altitude
5000m or 54kPa
1) Exclude fan power
2) Power de-rating with temperature above 50°C, refer to power de-rating curve
for detail
Highlights & Features
Up to 1200 Watt in 5"x8.03"x1.59" Package
Up to 19.1W/inch3 Power Density
Full Power from 90V to 264V
Full Power up to 50°C Ambient
Up to 500KHrs MTBF
2MOPP Isolation
Suited for Type BF Medical Products.
Optional CV/CC Version
5V/2A Standby Output
Current Sharing
Conformal Coating
Class B Conducted and Radiated EMI
IEC60601-1-2 4th Edition Immunity Compliance
Normal and Reversed Option for Remote On/Off and Power
Good Signal
Analog and Digital Voltage Trimming
PMBus Ver 1.3 Supported
Intelligent Fan Speed Control
Optional RS485 Version
Safety Certifications
IEC60601-1 2nd edition and IEC60601-1 3rd edition + A1
CB report
TUV EN60601-1:2006/A11/A12
UL60601-1+CAN/CSA 60601-1: (Ed.3.2005)
IEC60950-1 CB report
TUV EN60950-1
UL60950-1+CAN/CSA60950-1
GB4943.1-2011, GB9254-2008, GB17625.1-2012
TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
2
Model Information (With 5V/2A standby available)
Input Voltage
Output
V
oltage
Current Output
85-264Vac
24Vdc
0-50A
85-264Vac
48Vdc
0-25A
Model Numbering
MEB
-
1K2
A
24
T
AAA
ME: Delta Medical
Power Supply
Max Wattage in
Product Series
Family Code
Output
Voltage
Inlet Type
Revision Control
Code
B: Enclosed
1K2: 1,200W
24: 24V
48: 48V
T: Terminal
TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
3
Specifications
Input Ratings / Characteristics
Nominal Input Voltage
100-240Vac
Input Voltage Range
85-264Vac
Nominal Input Frequency
50-60Hz
Input Frequency Range
47-63Hz
Input Current (max)
15A
Input Surge Voltage (max)
300Vac for 100ms
Full load Efficiency
(typ. For 24V output Model)
90% @ 115Vac/60Hz 93% @ 230Vac/50Hz, Reference Fig.1
(typ. For 48V output Model)
91.5% @ 115Vac/60Hz 94% @ 230Vac/50Hz, Reference Fig.1-1
Inrush Current (max)
40A @ 264Vac, cold/hot start
Input-PE (protective earth) leakage current (max)
0.3mA @ NC, 1mA @ SFC 1)
Output-PE (protective earth) leakage current for Type
BF application (max)
0.1mA @ NC, 0.5mA @ SFC 1)
Power Factor (min)
0.95 @ 115V/50Hz, 230V/50Hz, full load
1) NC: normal condition, SFC: single fault condition
Leakage Current
100Vac/60Hz (Typ)
264Vac/60Hz(Typ)
Delta Limit
IEC60601-1 Limit
Input-PE Leakage Current
Normal Condition
92.1
236.6
300uA max
5000uA max
Single Fault Condition
174.3
459.3
1000uA max
10000uA max
Output-PE Leakage Current for
Type BF application
Normal Condition
31.2
79.3
100uA max
100uA max
Single Fault Condition
66.2
169.5
500uA max
500uA max
Figure 1. Typical efficiency Curve for 24V (1200W max) Figure 1-1. Typical efficiency Curve for 48V (1200W max)
TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
4
Output Ratings / Characteristics
Total Regulation
± 3%
Output Power (max)
1200W
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)
2000ms with AC turn on
Hold-up Time (min)
16ms @ 1000W load, with nominal input range
20ms @ 800W load, with nominal input range
Capacitive load (max)
6000uF
Rise time (max)
<50ms
Remote Sense
Up to 500mV compensation for voltage drop across external wire
connections to load.
Short and reverse connection protected.
(a) 115V (measured value=190mV)
(b) 230V(measured value=187mV)
Figure 2. 24V output model Ripple & Noise example, 20MHz BW
Nominal Output Voltage of standby output (Vrated)
5V
Nominal Output Current of standby output
2A
Total Regulation of standby output
± 3%
Ripple & Noise of standby output
100mV max
Ripple & Noise measurement circuit
Figure 3. Ripple & Noise testing set up
TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
5
Mechanical
Package
Enclosed
Dimensions (W x L x H)
127x204x40.5mm (5x8.03x1.59inch)
Unit Weight
1.5kg (3.3lb)
Environment
Surrounding Air Temperature
Operating
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
Storage
-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 106-54kPa)
Non-Operating Altitude
Up to 5,575 meters (up to 18,290 feet or 106-50kPa)
Shock Test (Non-Operating)
50G, 11ms, 3 shocks for each direction
Vibration (Operating)
5-500Hz, 2Grms, 15 minute for each three axis
Acoustic Noise
<45dB test with 1000W under 30°C 1)
1) Acoustic Noise test set up according to ISO-7779
Power De-rating curve
TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
6
Protections (for both main output and 5Volt 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 115Vac, 1200W, 35 °C
500 Khrs based on Telecordia SR-332
Operating life(Minimum) at 115Vac, 1200W, 25°C
26,280 hrs
Safety Standards / Directives
Medical Safety
IEC60601-1 2nd and 3rd + A1 edition CB report
TUV EN60601-1:2006
UL60601-1+CAN/CSA 60601-1: (Ed.3.2005)
ITE Safety
IEC60950-1 CB report
TUV EN60950-1
UL60950-1+CAN/CSA60950-1
GB4943.1-2011, GB9254-2008, GB17625.1-2012
CE
MDD Directive 93/42/EEC
Environmental
RoHS Directive 2011/65/EU Compliant
Galvanic Isolation
Input to/Output
(2XMOPP)
4000 Vac
Input to/Ground
(1XMOPP)
1500 Vac
Output to/Ground
(1XMOPP)
1500 Vac (Type BF application rated)
TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
7
EMC
EMC / Emissions
EN55011/EN55032, FCC Title 47:Class B
Harmonic Current
Emissions
IEC61000-3-2
Meet Class D limit
Immunity to
Voltage Flicker
IEC61000-3-3
Electrostatic Discharge
IEC61000-4-2
Level 4 Criteria A1)5)
Air Discharge: 15kV
Contact Discharge: 8kV
Radiated Field
IEC61000-4-3
Criteria A1
80MHz-2700MHz, 10V/m AM modulation
Level 2 Criteria A1)5)
385MHz-5785MHz, 28V/m Pulse mode and other modulation
Electrical Fast Transient /
Burst
IEC61000-4-4
Level 3 Criteria A1) :2kV
Surge
IEC61000-4-5
Level 3 Criteria A1)5)
Common Mode3): 2kV
Differential Mode4): 1kV
Conducted
IEC61000-4-6
Level 2 Criteria A1)5)
150kHz-80MHz, 3Vrms, 6Vrms at ISM bands and Amateur radio bands
Power Frequency Magnetic
Fields
IEC61000-4-8
Criteria A1)5)
Magnetic field strength 30A/m
Voltage Dips
IEC61000-4-11
30% 10ms Criteria A1)
60% 100ms Criteria B2)
100% 5000ms Criteria B2)
Voltage Dips5)
IEC60601-1-2
Criteria A1) @1000W
0% UT, 0.5 cycle (10ms)
(0°, 45°, 90°, 135°, 180°, 225°, 270°, 315°, 360°)
Criteria B2), can meet Criteria A with 800W or lower load
0% UT,1 cycle (20ms), 0°
Criteria B2)
70% U T, 25 cycle (500ms), 0°
Criteria B2)
70% U T, 250 cycle (5000ms), 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 IEC60601-1-2 4th Edition
TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
8
Dimensions
Mechanical drawing (MEB-1K2A)
Notes:
1. Base plate mounting, M3 thread holes, maximum penetration 4.0mm (0.16 inch) from outside face of chassis, maximum torque
6.3kgf.cm (5.46 inch.Ibs).
2. Side mounting, M3 thread holes, maximum penetration 4.0mm (0.16inch) from outside face of chassis, maximum torque 6.3kgf.cm
(5.46 inch.Ibs).
3. CN101/CN102, M5 screw in two positions, maximum torque 20kgf.cm (17.34 inch.Ibs).
4. CN1, M3.5 screw in two positions, maximum torque 12kgf.cm (10.41 inch.Ibs).
5. VR: clockwise is to increase the output voltage, anti-clockwise is to reduce the output voltage.
TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
9
Connector Definition and Pin Assignment
Input Connector CN1(ANYTEK: YK50A)
Pin 1
Neutral
Pin 2
Ground
Pin 3
Line
Output Connector
CN101
DC RTN
CN102
Vo
Control Connector CN603(Molex:87833-1051)
Mating With Molex:51110-1051 Terminal:0503948052
Pin 1
5V bus for I2C
Pin 2
DC RTN of 5V bus for I2C
Pin 3
Serial data signal (SDA)
Pin 4
Serial clock signal (SCL)
Pin 5
NC
Pin 6
NC
Pin 7
Address bit 0 (A0)
Pin 8
Address bit 1 (A1)
Pin 9
Address bit 2 (A2)
Pin 10
NC
Control Connector CN602(Molex:87833-7420)
Mating With Molex:51110-1451 Terminal:0503948052
Pin 1
Remote On_Off/Inhibit +
Pin 2
Remote On_Off/Inhibit -
Pin 3
Power Good-
Pin 4
Power Good+
Pin 5
NC
Pin 6
NC
Pin 7
5V Standby Output +
Pin 8
5V Standby Output +
Pin 9
DC RTN
Pin 10
DC RTN
Pin 11
Remote Sense +
Pin 12
Remote Sense -
Pin 13
Current Share
Pin 14
DC RTN
TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
10
Functions
Start-up Time
The time required for the output voltage to reach 90% of its final
steady state value, after the input voltage is applied.
Rise Time
The time required for the output voltage to change from 10% to
90% of its final steady state value.
Hold-up Time
Time between the collapse of the AC input voltage, and the
output falling to 90% of its steady state value.
Figure 4. Time Sequence
Dynamic Response (Main Output)
The power supply output voltage will remain within ±5% of its
steady state value, when subjected to a dynamic load 50 to 100%
of its rated current.
50 to 100% Load
Figure 5. Dynamic Load
Inrush Current
Inrush current is the input current that occurs when the input
voltage is first applied. For AC input voltages, the maximum peak
value of inrush current will occur during the first half cycle of the
applied AC voltage. This peak value decreases exponentially
during subsequent cycles of AC voltage.
Figure 6. Inrush Current
Overvoltage Protection
The power supply’s overvoltage circuit will be activated when its
internal feedback circuit fails. The output voltage shall not exceed
its specifications defined on Page 6 under “Protections”. Power
supply will latch off, and require removal/re-application of input
AC voltage in order to restart.
Overload & Over current Protections
Main output Overload (OLP) and Over current (OCP) Protections
is achieved by constant output current control. If the output
current increases higher than rated current, the current will be
clamped to be constant (<130% rated current), output voltage will
then drop if output impedance keeps decreasing in the constant
current control. Finally output under voltage protection will be
triggered if the output voltage falls below 75% rated value and
enters “Hiccup mode” (Auto-Recovery). The power supply will
recover once the fault condition causing the OLP and OCP is
removed and IO is back within the specified limit.
Figure 7. Hiccup at OLP/OCP
Additionally, if the Iout is >100% for a prolong period of time
(depending on the load), the Over Temperature Protection (OTP)
may be activated due to high temperature on critical components.
The power supply will then go into latch mode.
TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
11
Short Circuit Protection
The power supply also provides protection against short circuits.
When a short circuit is applied, the output current will operate in
“Hiccup mode”. The power supply will return to normal operation
after the short circuit is removed.
Over Temperature Protection
As mentioned above, the power supply also has Over
Temperature Protection (OTP). This is activated when the
overload condition persists for an extended duration and the
output current is below the overload trigger point but >100% load.
In the event of a higher operating temperature condition at 100%
load, the power supply will run into OTP when the surrounding air
temperature is higher than the operating temperature. When
activated, the output voltage will go into latch mode until the input
voltage is removed; then, reapplied, and the surrounding air
temperature drops to its normal operating temperature.
Power Good
Power Good+/- pin is an isolated open collector transistor
(80V/50mA rating). A resistor (suggested value 10Kohm, 1/8W)
can be added between Power Good- pin and DC RTN, Power
Good+ pin can be connected to 5V standby (or, other available
pull-up voltage that is no greater than the transistor rating). Value
of resistor may have to be adjusted, depending on voltage used,
and other end-use conditions of the Power Good+ pin connection
to the product. When AC input is on, Power Good Signal (Shown
in below figure) generated will be high. When AC input is off,
Power Good Signal generated will be low. There will be a
minimum of 5 milliseconds (at 1000W load) between the time the
Power Good Signal goes to low level, and the time when the
output reaches 90% of its rated value.
Power supply
side
DC RTN
Power Good +
Power Good -
5V standby System
side
Power Good
Signal
Figure 8. Power Good Connection
Figure 9. Power Good Time Sequence
Remote On_Off/Inhibit
Remote ON_OFF/INHIBIT uses an isolated diode located within
the power supply. This signal can be used to enable or disable
only the main output. When the main output is disabled, the +5V
Standby output will continue to operate. System can use a switch
to conduct through this diode (suggested pull up resistor to 5V
standby with 1Kohm resistor) to disable the main out. The signal
can be floated (no connection to the signal), in order to enable the
main output
Power supply
side
DC RTN
5V standby
System
side
Switch Signal
Remote On_Off +
Remote On_Off -
Figure 10. Remote On_Off Connection
Remote Sense
Remote sense feature can be used to compensate for the extra
voltage drop on output wires that are connected from the main
output terminals, to the load. With wires connected from the
remote sense pins, at the same locations as the wires from the
main output, the remote sense function can compensate up to
500mV voltage drop. The power supply will not be damaged if the
remote sense pins are shorted, or if a reverse/inverted polarity
connection is made to the load.
Voltage Adjustment
The power supply provides a potentiometer for user to adjust the
output voltage. The output voltage is designed to be able to
adjust up to ± 10% of rated voltage, when the output is adjusted
below nominal value, the maximum output current is the same as
the nominal output, when the output is adjusted above nominal
value, the output power cannot exceed the nominal maximum
power (the maximum output current will be reduced accordingly).
PMBus
The power supply can communicate with the host product, using
PMBus version 1.3 protocols. Multiple functions can be realized,
such as monitoring the power supply operation status, and editing
the power supply operating set-points. See user instruction for
detailed control information.
Current Sharing
The power supply supports current sharing. Parallel the outputs
as well as the current sharing bus to enable this feature.
TECHNICAL DATASHEET
Medical / Industrial AC-DC Power Supply
1200W with 5V/2A Standby / MEB-1K2A series
All parameters are specified at 25°C ambient unless otherwise noted.
www.DeltaPSU.com (Dec 6th, 2017, Rev. S03.1)
12
Certificate
All Delta Medical Power products conform to the European directive 2011/65/EU.
ROHS is the abbreviation for “Restriction of the use of certain hazardous substances
Delta has been certified as meeting the requirement of ISO 13485: 2003 and EN ISO 13485:2012 for the design
and manufacture of switching power supply and adaptor for medical device.
In addition to a UL Total Certification Program (TCP) approved client laboratory for IEC60950 and IEC60065. Delta
also has participated UL Client Test Data Program (CDTP) for IEC 60601