The MBC550 Series of open frame medical power supplies feature a
wide universal AC input range of 90 – 264 VAC, offering up to 550 W
of output power with forced air cooling, or 250 W with conduction
cooling in a compact footprint, with a variety of isolated single output
voltages.
The MBC series is designed and approved to the latest Medical
standards (EN/IEC 60601-1), providing 2 x MOPP (Means of Patient
Protection) isolation for Class I & Class II applications.
The MBC550 range is ideally suited to a wide variety of medical
applications, and also where airflow is limited or not available.
• 5 x 3 x 1.5 Inch Form Factor
• Up to 550 Watts with Forced Air Cooling
• Efficiencies up to 92%
• -40 to 70°C Operating Temperature
• 12 V / 0.5 A Fan Output, Thermal Shut-Down Feature
• Approved to EN/IEC 60601-1
• Medical (BF) Safety Approvals
• MTBF >3 million hours as per Telcordia SR-332, Issue 3
• RoHS Compliant
• CE Marked
• Diagnostic
• Drug Pump
• Dialysis
• Home Health Care
• Monitoring
• Portable Equipment
2
MBC550 Series
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MBC550-1T12
12 V
9.17 A
16.67 A
41.67 A
0.0 A
2%
MBC550-1T15
15 V
7.33 A
13.33 A
33.33 A
0.0 A
2%
MBC550-1T24
24 V
6.25 A
10.42 A
22.92 A
0.0 A
1%
MBC550-1T30
30 V
5.00 A
8.33 A
18.33 A
0.0 A
1%
MBC550-1T48
48 V
3.13 A
5.21 A
11.46 A
0.0 A
1%
MBC550-1T58
58 V
2.59 A
4.31 A
9.48 A
0.0 A
1%
Specifications are for nominal input voltage, 25°C unless otherwise stated.
Input Voltage
Universal
(Derate from 100% at 115 VAC to 78% at 90 VAC)
90-264 VAC / 390 VDC
Input Frequency
47-63 Hz
Input Current
115 VAC:
230 VAC:
6 A max.
3 A max.
No Load Power
115 VAC:
230 VAC:
< 0.5 W
< 0.7 W
Inrush Current
115 VAC:
230 VAC:
264 VAC:
25 A
45 A
75 A
Leakage Current
115 VAC:
230 VAC:
Touch current
< 200 µA
< 400 µA
<100 µA
Power Factor
@ Full Load
> 0.95
Switching Frequency
PFC
Resonant
70 to 130 KHz
68 to 80 KHz
Output Power3
Forced air cooled:
Conduction cooled:
Convection cooled:
up to 550 W
up to 250 W
up to 150 W
Efficiency
(
typical @ 230 VAC full load)
48 V:
24 V:
12 V, 15 V:
92%
91%
90%
Hold-up Time (typical)
Full Load
Convection Load
Conduction Load
> 16 ms
> 55 ms
> 30ms
Line Regulation
+/-0.5%
Load Regulation
+/-1%
Transient Response
50-100% step load change, at 0.1A/ µs slew rate,
50% duty cycle, 50 Hz = 5%
recovery time < 5 ms
1
Refer Recommended Conduction Plate & Clearance on Page 8.
2
Ripple is peak to peak with 20 MHz bandwidth and 10 µF (Tantalum capacitor) in parallel with a 0.1 µF capacitor at rated line voltage
and load ranges. Output ripple can be more than 10% of the output voltage.
3
Combined output power of main output, fan supply shall not exceed max. Power rating.
MBC550 Series
3
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BCD.00818_AB
Voltage Adjustment
+/-3%
Rise Time
Typical
55 ms
Set Point Tolerance4
+/-1%
Over Current Protection
Hiccup mode / Auto recovery
> 110%
Over Voltage Protection
Hiccup mode / Auto recovery
110 to 140%
Short Circuit Protection
Hiccup mode / Auto recovery
Operating Temperature5
Startup guaranteed
with spec. deviation
-40 to +70°C
-40 to 0°C
Storage Temperature
-40 to +85°C
Relative Humidity
Non-condensing
5% to 95%
Altitude
Operating:
Non-operating:
16,000 ft.
40,000 ft.
Conducted Emissions
EN 55011-B, CISPR22-B, FCC PART15-B
Pass
Radiated Emissions
EN 55011 A;
with external core (King core K5B RC 25x12x15-M in input cable)
Pass
Level B
Input Current Harmonics
EN 61000-3-2
Class D
Voltage Fluctuation and Flicker
EN 61000-3-3
Pass
ESD Immunity
EN 61000-4-2
Level 4, Criterion A
Radiated Field Immunity
EN 61000-4-3
Level 3, Criterion A
Electrical Fast Transient Immunity
EN 61000-4-4
Level 3, Criterion A
Surge Immunity
EN 61000-4-5
Level 3, Criterion A
Conducted Immunity
EN 61000-4-6
Level 3, Criterion A
Magnetic Field Immunity
EN 61000-4-8
Level 4, Criterion A
Voltage Dips, Interruptions
EN 61000-4-11
Criterion B
Isolation Voltage
Input to Output: (for medical applications)
Input to GND:
Output to GND: for type BF
for type B
4000 VAC
1500 VAC
1500 VAC
500 VAC
Safety Standard(s)
Approved to the latest edition of the following
standards: CSA/UL60601-1, EN60601-1, IEC60601-1,
ANSI / AAMI ES 60601–1.
Agency Approvals
Nemko, UL, C-UL
CE mark
Complies with LVD Directive
4
Fan supply output voltage tolerance incl. set point accuracy, line and load regulation is +/-10% and Ripple and noise is less than 10%.
5
Thermal shutdown feature: The power supply goes in hiccup mode when the temperature of Substrate PCB exceeds 110 °C (+/-10 °C).
4
MBC550 Series
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AC Input Connector
J1
Pin 1
Pin 2
Pin 3
AC Line
Not Fitted
AC Neutral
JST : B3P-VH-B(LF)(SN) or equivalent
Mating: VHR-3M or equivalent Pins : SVH-41T-P1.1 or equivalent
DC Output Connector
(Screw Terminal)
J2
Pin 1
Pin 2
V1 +VE
V1 -VE
6-32 inches Screw Pan HD
Mating: Designed to accept Ring Tongue Terminal AMP: 8-31886-1,
wherein one 16 AWG (max) wire can be crimped.
Note: One Ring Tongue Terminal with 16 AWG is recommended for
current up to 11A only.
Use multiple tongue terminals with wire for more current.
Aux (Fan) Output
J3
Pin 1
Pin 2
FAN +VE
FAN -VE
AMP: 640456-2
Mating: 640440-2
Earth
J4
Molex: 19705-4301
Mating: 19003-0001
Weight
approx. 500 g
Dimensions
127 x 76.2 x 38.1 mm (5 x 3 x 1.5 inches)
Mechanical Drawing
MBC550 Series
5
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Europe, Middle East
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North America
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© 2017 Bel Power Solutions & Protection
BCD.00818_AB
De-rate linearly from 100% at
110 VAC to 78% at 90 VAC
Convection load: 110 W up to 50 °C
De-rate above 50 °C @ 2.5% per °C
Conduction load: 200 W up to 50 °C
De-rate above 50 °C @ 2.5% per °C
Forced air cooled load:
500 W up to 50°C
De-rate above 50 °C @ 2.5% per °C
Convection load: 150 W up to 50 °C
De-rate above 50 °C @ 2.5% per °C
Conduction load: 250 W up to 50 °C
De-rate above 50 °C @ 2.5% per °C
Forced air cooled load:
550 W up to 50°C
De-rate above 50 °C @ 2.5% per °C
6
MBC550 Series
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For reliable and safe operation, please make sure the maximum component temperatures given in table below is not exceeded.
TOP PCB
BOTTOM PCB
INDENT NO
DESCRIPTION
MAXIMUM TEMP.
ALLOWED (°C)
1
Common mode chokes
95
2
Input Bulk Capacitors
90
3
Differential choke
110
4
Boost Choke
110
5
Output Transformer
125 (for 12 V & 15 V)
110 (for 24 V, 30 V,48 V,58 V)
6
Output Capacitor
90
7
Bridge Rectifier
120
8
Aluminum Clad PCB
105
9
Output Rectifiers
110
MBC550 Series
7
Asia-Pacific
+86 755 298 85888
Europe, Middle East
+353 61 225 977
North America
+1 408 785 5200
© 2017 Bel Power Solutions & Protection
BCD.00818_AB
FIXING OPTION - 1
FIXING OPTION - 2
Figure 2. Mounting Options
8
MBC550 Series
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Conduction power rating mentioned in the table is with additional aluminum base plate of 3 mm thickness with 177.8 mm (7 in) length
& 101.6 mm (4 in) width.
Clearance of minimum 15 mm above the component height is recommended for better thermal management.
NUCLEAR AND MEDICAL APPLICATIONS - Products are not designed or intended for use as critical components in life support systems,
equipment used in hazardous environments, or nuclear control systems.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on the
date manufactured. Specifications are subject to change without notice.
