MCC750-1T48-PC

The MCC750 Series of AC-DC power supplies provides a steady 750 W of regulated DC power through 180-305 VAC and 600 W through 85-137 VAC input voltage ranges in a single output of 24 or 48 VDC. The natural convection cooling operation (without fan), is particularly suitable for environments sensitive to acoustical noise. 

The MCC750 Series comes in two U-shaped 1.6” high packages, with and without a protective cover, offering 12 and 5 VSB standby outputs and a full set of protection features. 

The MCC750 Series supports digital power management over the Power Management Bus communications protocol. Multiple units may be connected in parallel for redundancy and / or higher power, enabled with the internal OR-ing and current sharing functions. 

The MCC750 Series complies with the latest edition of the IEC/EN 606011 safety standards for medical equipment requiring 2x MoPP protection grade and displays the CE-Mark for the European Low Voltage Directive (LVD). 

- Universal input voltage range 90 – 305 VAC, MoOP; 90 – 264 VAC, MoPP 

- Input inrush current limiting 

- 750 W rated power (900 W peak for <10 s) 

- High efficiency up to 94% 

- Single 24 VDC or 48 VDC output voltages available 

- Active PFC, EN61000-3-2 compliant (Class C, >25% load) 

- • Low earth / touch leakage current 

- Natural convection cooling 

- Over temperature, OV, OC and SC protections 

- +12 V / 0.3 A; +5 V / 0.72 A Stand by outputs 

- Built-in current sharing and OR-ing for parallel operation and N+1 redundancy 

- Power good and remote sense signals 

- Remote On / Off signal 

- Power Management Bus communication protocol supported 

- • Medical safety approval to IEC 60601-1 3rd edition, 2x MoPP rated and BF appliances compatible 

- IEC 60601-1-2 4th edition EMC compliant 

- RoHS 3 compliant (Directive EU 2015/863) 

- X-Ray / CT Scanner 

- Dental Equipment 

- Laboratory / Analysis Equipment 

- Medical Devices / Applications 

fr @: bel SOLUTIONS & 

MCC750 Series 

2 

|||**INPUT**<br>**NOM.**||**MAX.**|**MAX.**||||||
|---|---|---|---|---|---|---|---|---|---|---|
|**MODEL NUMBER**|**PACKAGE & COOLING**<br>**VOLTAGE**<br>**RANGE**<br>**OUTPUT**<br>**VOLTAGE**|||**OUTPUT**<br>**POWER**|**OUTPUT**<br>**CURRENT**|**CURRENT**<br>**DIMENSIONS**|||||
|||**[VAC]**<br>**[VDC]**||**[W]**|**[A]**||||||
|MCC750-1T24|U-chassis<br>Natural Convection<br>85 - 305<br>24|||750|31.2|101.6 x 234.0 x 41.0 mm<br>4.00 x 9.21 x 1.61 in|||||
|MCC750-1T48|U-chassis<br>Natural Convection<br>85 - 305<br>48|||750|15.6|101.6 x 234.0 x 41.0 mm<br>4.00 x 9.21 x 1.61 in|||||
|MCC750-1T24-PC|U-chassis + Protective Cover<br>Natural Convection<br>85 - 305<br>24|||750|31.2|101.6 x 234.7 x 41.0 mm<br>4.00 x 9.24 x 1.61 in|||||
|MCC750-1T48-PC|U-chassis + Protective Cover<br>Natural Convection<br>85 - 305<br>48|||750|15.6|101.6 x 234.7 x 41.0 mm<br>4.00 x 9.24 x 1.61 in|||||
|2.<br>INPUT SPECIFICATIONS|||||||||||
|**PARAMETER**||**DESCRIPTION / CONDITION**|||**MIN**|**NOM**|||**MAX**|**UNIT**|
|||PS starts at 85 VACat all load conditions|||||||||
|AC Input Voltage||Operating input voltage range<br>MCC750 Series is designed to operate with a square or trapezoidal input|||85|100-277|100-277||305|VRMS|
|||voltage wave form (i.e. from UPS)|||||||||
|DC Input Voltage||Built in fuses safety certified up to 250 VDC. Operating the MCC750 above<br>that limit up to 300 VDC, does require an external fuse protection *|||120|-|||300|VDC|
|Input Frequency|||||47|50/60|||63|Hz|
|Input Current||At 180 VAC, 750 W, 50 / 60 Hz<br>At 85 VAC, 600 W load, 50 / 60 Hz<br>163 VDC, maximum load<br>120 VDC, 650 W|||-|-|||5.0<br>8.7<br>5.6<br>6.0|ARMS<br>A|
|||At power-on asserted|||||||||
|Inrush Current||Cold start, 25 °C ambient, full load<br>Any point of the AC input sine                         230 VAC<br>277 VAC|||-<br>-|-<br>-|||30<br>50|A|
|Fusing||High breaking, 16 / 20 A, 277 VAC(250 VDC) on each AC line.|||-|-|||16 / 20|A|
|||20% rated load|||85|-|||-||
|||At 120 VAC<br>50% rated load|||92|-|||-||
|||100% rated load|||92|-|||-||
|Efficiency||||||||||%|
|||20% rated load|||87|-|||-||
|||At 230 VAC<br>50% rated load|||93|-|||-||
|||100% rated load|||94|-|||-||
|Input Power Consumption||At power on, no load, 100 – 277 VACrange<br>Stand by, no load, nominal 100 – 277 VACrange|||-<br>-|6.0<br>3.5|||-<br>-|W|
|Power Factor||Any nominal input line voltage, 50/60 Hz, from 50 to 100% maximum load|||0.95|-|||-|-|
|THDi||From 50 to 100% rated load, 100 – 277 VAC, 50/60 Hz.|||-|-|||20|%|
|Harmonic Current<br>Fluctuations and Flicker||Complies with EN 61000-3-2 at 230 VAC, 50/60 Hz, Class A, D.<br>Complies with EN 61000-3-2 Class C at 230 VAC, 50/60 Hz, >300 W load.<br>Complies with EN 61000-3-3 at nominal voltages and full load.|||||||||
|||Normal conditions|||||||||
|Earth Leakage Current||115 VRMS, 60 Hz<br>230 VRMS, 50 Hz|||-<br>-|170<br>300|||-<br>-|µA|
|||264 VRMS, 60 Hz (worst case)|||-|-|||450||
|||264 VRMS, 60 Hz|||||||||
|Touch Leakage Current|Touch Leakage Current|Normal Condition (NC)|||-|-|||100|µA|
|||Single Fault Condition (SFC)|||-|-|||500||
|||264 VRMS, 60 Hz|||||||||
|Patient Leakage Current||Normal Condition (NC)|||-|-|||100|µA|
|||Single Fault Condition (SFC)|||-|-|||500||



* Suggested fuse SIBA 5012434.16 and fuse holder SIBA 5105805.1 

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tech.support@psbel.com belfuse.com/power-solutions 

MCC750 Series 

3 

|**PARAMETER**|**DESCRIPTION / CONDITION**|||**MIN**|**NOM**|**MAX**|**UNIT**|
|---|---|---|---|---|---|---|---|
|V1 Output Voltages|±0.5% set point accuracy<br>RS+ closed on +V1, RS- closed on V1 RTN, at 6% load.|||-|24<br>48|-|V|
||85 – 137 VAC(120-163 VDC)|||||600||
||||||||W|
|V1 Output Power Rating|180 – 305 VAC(163-300 VDC)|||||750||
||Peak, <10 s, after P_Ok asserted high|||||900||
|V1 Output Current|85 – 137 VAC(120-163 VDC)<br>180 – 305 VAC(163-300 VDC)||V1: 24 VDC<br>V1: 48 VDC<br>V1: 24 VDC<br>V1: 48 VDC|||25.0<br>12.5<br>31.2<br>15.6|A|
|V1 Voltage Adjustment Range|Manually by push up and down buttons|||-|±5|-|%V1|
|V1 Line Regulation|VAC:   85 – 305 VRMS|||-|-|±0.1|%V1|
|V1 Load-Line-Cross Regulation|VAC:   85 – 305 VRMS; I1: 0 – 100%|||-|-|±2|%V1|
|V1 Ripple and Noise|Rated load, Peak-to-peak, 20 MHz BW.<br>(100 nF ceramic, 10 µF tantalum at load)|||-|-|1|%V1|
|Transient Response:|25% load changes at 1 A/µs|||||||
|V1, 12VSB, 5VSB<br>Voltage Deviation|24 V at 1000 µF load / IOUT> 2.5 A<br>48 V at 560 µF load / IOUT> 1.25 A|||-|-|±5|%V1<br>%VSB|
||12 VSB, 5 VSBat 0-2200 µF load|||||||
|V1 Start-up Rise Time|85<VIN<305, any load conditions.|||10|-|150|ms|
||At nominal VIN, full load|||10|-|-||
||SEMI F47-0706 compliant at≥208 VAC|||||||
|V1 Hold-up Time|||50% sag (104 V)|200|-|-|ms|
||||30% sag (145 V)|500|-|-||
||||20% sag (166 V)|1000|-|-||
||Parallel operation up to four units.|||||||
||Two units in parallel at I1 rated load.|||||||
|V1 Current Sharing Accuracy|I-Share signals connected together.<br>RS+, RS-signals connected together and to the load.<br>Max load at start up 750 W, operating 1250 W, 180 ÷ 305 V|signals connected together and to the load.<br>Max load at start up 750 W, operating 1250 W, 180 ÷ 305 VAC||40|-|60|%I1|
||Max load at start up 600 W, operating 1000 W, 85 ÷ 137 V|Max load at start up 600 W, operating 1000 W, 85 ÷ 137 V|Max load at start up 600 W, operating 1000 W, 85 ÷ 137 VAC|||||
|V1 Remote Sense|RS+and RS-power path voltage loss compensation|||-|-|0.36|V|
||V1 in regulation after de-asserting PS_Inhibit|||-|-|1700||
||V1 in regulation after AC is applied|||-|-|2200||
|Start-up Delay|(worst case: 85 VAC)||||||ms|
||5VSBin regulation after AC is applied|||-|-|500||
||(worst case: 85 VAC)|||||||
|Turn-on Overshoot||||-<br>-|-<br>-|10<br>10|%V1<br>%VSB|
|Minimum Load|V1, 12 VSB, 5 VSB|||0|-|-|A|
|Maximum Load Capacitance|||V1: 24 VDC<br>V1: 48 VDC|-<br>-|-<br>-|16000<br>8000|µF|
|V1 Over Current Protection|||V1: 24 VDC<br>V1: 48 VDC|||46.8<br>23.4|A|
|12 VSBOutput Voltage|VSBoutput voltage is referred to the same V1 output voltage return|||-|12|-|V|
|12 VSBOutput Current|Up to 70 °C|||-|-|0.3|A|
|12 VSBRipple & Noise|Peak-to-peak|||||120|mV|
|12 VSBLine Cross Regulation|VAC: 85 – 305 VRMS; ISB: 0 – 100%|||-|-|±5|%VSB|
|5 VSBOutput Voltage|VSBoutput voltage is referred to the same V1 output voltage return|||-|5|-|V|
|5 VSBOutput Current|Up to 70 °C|||-|-|0.72|A|
|5 VSBRipple & Noise|Peak-to-peak|||||50|mV|
|5 VSBLoad, line cross Regulation|VAC: 85 – 305 VRMS; ISB: 0 – 100%|||-|-|±5|%VSB|



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**Asia-Pacific Europe, Middle East North America** +86 755 298 85888 +353 61 225 977 +1 408 785 5200 

© 2020 Bel Power Solutions & Protection 

BCD.01056_B 

MCC750 Series 

4 

Figure 1 Derating Curves of MCC750 Series V1 POUT to TAMB 

The MCC750 Series does support communication according to the Power Management Bus 1.2 protocol via SDA, SCL and 

#SMBALERT signals as defined in the SMBus Specification version 2.0. 

The power supply shall not load the SMBus if it has no input power (SCL & SDA lines should go to High-Z). 

The pull-up resistors (2.2 k Ω ) for these signals shall be external to the power supply and referenced to an external +3.3 V bus voltage. 

The DSP circuits inside the power supply are powered by the standby output. 

The Power Management Bus is active whatever input power is applied to the power supply or a parallel redundant power supply in the system, provided that their 12VSB are connected in parallel. 

Maximum speed of SMBus is 100 kHz. 

The ADDR0 and ADDR1 signals, are inputs to the power supply that control the Power Management Bus address assigned to the power supply. 

On the system side, the ADDR0 and ADDR1 signals will either be connected to return through a 1 k Ω pull-down resistor or connected to +3.3 V external bus voltage through a 1 k Ω pull-up resistor. 

The address shall be derived from the logic of this pin as indicated on Outline Drawing and Connections section. The power supply is a slave only on SMBus device. 

For a comprehensive description of MCC750 Series Power Management Bus management, do refer to the application note, “MCC750 Series Power Management Bus Mgt”. The MCC750 Series parameters available through communication bus are: 

- Input voltage status 

- Output voltages +V1 measured value 

- Output current on +V1 measured value 

- Current sharing status 

- Thermal health measured value 

- Fan health status 

- Power-On / Working hours 

- Product information 

- Status information 

Failures shall be reported by Power Management Bus for all failure types: 

- Protections failure (OV, OC, OT) 

- Voltages out of specification 

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MCC750 Series 

5 

Base signals and controls are accessible from signal connector P204. 

|**SIGNAL**|**DESCRIPTION / CONDITION**|**MIN**|**NOM**|**MAX**|**UNIT**|
|---|---|---|---|---|---|
|+PS_Inhibit<br>(Active High)|Input low voltage (IIN= 0 µA)<br>Input high voltage (IIN= 500 µA at 5.5 V)<br>V1 disabled when PS_Inhibit is pulled high<br>V1 enabled when PS_Inhibit is floating or low|0<br>2.5|-<br>-|0.8<br>5.5|V|
||5VSBand 12VSBnot affected by PS_Inhibit<br>Input low voltage  (IIN= -800 µA at 0 V)<br>Input high voltage (IIN= -200 µA at 2.5 V)|0<br>2.5|-<br>-|0.8<br>5.5|V|
|-PS_Inhibit|(IIN= 700 µA at 5.5 V)|||||
|(Active Low)|V1 disabled when -PS_Inhibit is pulled low|||||
||V1 enabled when -PS_Inhibit is floating or high<br>5VSBand 12VSBnot affected by -PS_Inhibit|||||
||Logic level low (<10 mA sinking)|-|-|0.7|V|
|Power_OK *|Logic level high (200 µA sourcing)|2.4|-|3.45||
|(PS_OK)|Low to high time after V1 in regulation<br>Power down warning time|150<br>2|-<br>-|350<br>-|ms|
||The I_SHARE signals shall be daisy chained among power supplies operating in parallel.|||||
|I_Share|On a single power supply operating it provides current measurement on V1 output.|||||
||On multiple power supplies operating in parallel, it provides current measurement on master V1output.|||||
|SDA, SCL, #SMBALERT,|These are signals which support Power Management Bus communication protocol as specified in the application|||||
|ADDR0, ADDR1|note MCC750 Series Power Management Bus Mgt.|||||
||Mainly intended for internal use, these RX and TX signals - available at the output signal connector|||||
|RSVD RX, RSVD TX|P204 - may be used to access some DSP functions (monitoring, threshold settings, debug functions).<br>These signals work as an UART Rx/Tx port and can also work as a RS-232 Rx/Tx port by building in the<br>“RS-232 LINE DRIVERS/RECEIVERS” IC|||||
|5VSBOutput **|Active and in regulation after an 85<VAC<305 is applied<br>Not affected by PS_Inhibit. Available on P204, pin#4|-|-|500|ms|
|12VSBOutput ***|Active and in regulation after an 85<VAC<305 is applied<br>Not affected by PS_Inhibit. Available on P204, pin#16|-|-|500|ms|



* When V1 is On, a P_OK low may indicates V1 under voltage condition. When two MCC750 models operate in parallel, P_OK low in one unit indicates that it is not sharing the expected amount of current (current sharing fault). A 3.3 k Ω internal pull up to a 3.3 V internal reference voltage is used; do not add any other external pull up. 

** The 5VSB outputs of two or more MCC750 models operating in parallel, cannot be connected in parallel in turn, since doing so results in power supplies damage. 

*** The 12VSB outputs of two or more MCC750 models operating in parallel can be connected in parallel in turn, taking into account that the maximum available power will not be higher of a single operating power supply one. 

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© 2020 Bel Power Solutions & Protection 

BCD.01056_B 

MCC750 Series 

6 

## 5.1 BASE SIGNALS / CONTROLS TIMING 

## **AC/DC INPUT OFF-TO-ON AND ON-TO-OFF TIMINGS** 

12VSB/5VSB On to V1 On 250 ms ≤ T1 ≤ 1700 ms V1 rise time 10 ms ≤ T2 ≤ 150 ms 12VSB/5VSB rise time 3 ms ≤ T10 ≤ 150 ms V1 On – POWER_OK delay 150 ms ≤ T3 ≤ 350 ms Power down warning T4 ≥ 2 ms V1 Off to 12VSB/5VSB Off T5 ≥ 0.5 s (V1 load > 25 W) AC Off to POWER_OK low T6 ≥ 8 ms AC_On to 12VSB/5VSB On T7 ≤ 500 ms 

## **PS_INHIBIT OFF-TO-ON AND ON-TO-OFF TIMINGS** 

V1 rise time 10 ms ≤ T2 ≤ 150 ms V1 On – POWER_OK delay 150 ms ≤ T3 ≤ 350 ms Turn-Off warning T11 ≥ 1 ms PS_Inhibit – POWER_OK low delay T8 ≤ 3 ms PS_Inhibit – V1 On delay T9 ≤ 1700 ms 

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MCC750 Series 

7 

|**PARAMETER**|**DESCRIPTION / CONDITION**|**MIN**|**NOM**|**MAX**|**UNIT**|
|---|---|---|---|---|---|
|Input Under Voltage|Auto-recovering, hiccup mode.|58|75|82|VAC|
|Input Fuse|High breaking, 16 / 20 A, 277 VAC(250 VDC)<br>on each AC lines.|-|-|16/20|A|
||At nominal input voltages|||||
|Over Current|V1: Hiccup mode, auto-recovering<br>5 VSB: Auto-recovering|-<br>-|-<br>-|150<br>-|%I1Rated<br>A|
||12 VSB: Hiccup mode, auto-recovering|-|-|-|A|
||At nominal input voltages|||||
|Short Circuit|V1: Hiccup mode or latch<br>5 VSB: Auto-recovery<br>12 VSB: Hiccup mode, auto-recovering.|-|-|-||
|Over Voltage|V1, Power shut down, latch off.<br>12 VSB, Hiccup mode, auto-recovering.|116<br>-|-<br>-|145<br>150|%VNOM|
|Over Temperature<br>(ambient)|Hiccup mode, auto-recovering.|70|-|-|°C|
|Over Temperature<br>(on secondary side)|Hiccup mode, auto-recovering.|||||
|Isolation: Primary-to-Secondary|Reinforced|5660<br>4000|-<br>-|-<br>-|VDC<br>VAC|
|Isolation: Input-to-Earth|Basic<br>Production tested at 2642 VDC|2642<br>1865|-<br>-|-<br>-|VDC<br>VAC|
|Isolation: Output-to-Earth|Basic|1500|-|-|VAC|
|Means of Protection:|2x MoPP (IEC 60601-1 3rd edition) at 90 – 264 VAC, 50/60 Hz (120-300 VDC) up to 4000 m|||2x MoPP (IEC 60601-1 3rd edition) at 90 – 264 VAC, 50/60 Hz (120-300 VDC) up to 4000 m||
|Primary to secondary|2x MoOP (IEC 60601-1 3rd edition) at 90 – 305 VAC, 50/60 Hz (120-300 VDC) up to 4000 m|||||
|Means of Protection:|1x MoPP (IEC 60601-1 3rd edition) at 90 – 264 VAC, 50/60 Hz (120-300 VDC) up to 4000 m|||1x MoPP (IEC 60601-1 3rd edition) at 90 – 264 VAC, 50/60 Hz (120-300 VDC) up to 4000 m||
|Input to Protection Earth|1x MoOP (IEC 60601-1 3rd edition) at 90 – 305 VAC, 50/60 Hz (120-300 VDC) up to 4000 m|||||
|MeansoOf Protection:|1x MoPP (IEC 60601-1 3rd edition) at 100 – 250 VAC, 50/60 Hz up to 4000 m|||||
|Output to Protection Earth||||||
|Equipment Protection Class|Class I, compatible with BF (Body Floating) ME (Medical Equipment)|||||



## 7. 

|**PARAMETER**|**DESCRIPTION / CONDITION**|**MIN**|**NOM**|**MAX**|**UNIT**|
|---|---|---|---|---|---|
||No derating up to 35 °C|||||
|Operating Temperature Range|See derating curves above|-20|-|35|°C|
||MCC750 Series starts at -40 °C upon warm up delay|||||
|Operating Temperature Range<br>with Derating<br>Storage Temperature<br>Transportation Temperature|See derating curves and conditions in the Output Specifications<br>section<br>As per IEC/EN 60721-3-1 Class 1K4<br>As per IEC/EN 60721-3-2 Class 2K4|-<br>-40|-<br>-|70<br>85|°C<br>°C|
|Humidity|RH, Non-condensing Operating.<br>Non-operating|-|-|90<br>95|%<br>%|
|Operating Altitude|MoPP (90 – 264 VAC, 50/60 Hz, 120 – 300 VDC)<br>MoOP (90 – 305 VAC, 50/60 Hz)<br>Power derating above 1800 m|-<br>-|-<br>-|4000<br>4000|m|
||**EN 60068-2-27**|||||
|Shock|Operating:           Half sine, 30 g, 18 ms, 3 axes, 6x each (3 positive and 3 negative).|||||
||Non-Operating:   Half sine, 50 g, 11 ms, 3 axes, 6x each (3 positive and 3 negative).|||||
||**EN 60068-2-64**|||||
|Vibration|Operating:           Sine,10 – 500 Hz, 1 g, 3 axes, 1 oct/min., 60 min.<br>Random, 5 – 500 Hz, 0.02 g2/Hz, 1 gRMS, 3 axes, 30 min.<br>Non-Operating:   5 – 500 Hz, 2.46 gRMS(0.0122 g2/Hz), 3 axes, 30 min.||, 3 axes, 30 min.|||
|MTBF|Full load, 25 °C ambient, 100% duty cycle,<br>Full load, 40 °C ambient, 75% duty cycle|700000<br>600000|700000<br>600000<br>-<br>-|-<br>-|Hours|
||Telcordia SR-332 Issue 2|||||
|Useful Life|Nominal VIN, 80% load, 40 °C ambient (IPC9592)|-|7|-|Years|



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© 2020 Bel Power Solutions & Protection 

BCD.01056_B 

MCC750 Series 

8 

|**PARAMETER**|**DESCRIPTION / CONDITION**|**STANDARD**|**PERFORMANCE**<br>**CLASS**|
|---|---|---|---|
|Conducted|115, 230 VRMS, Maximum load|EN 60601-1-2 (Medical)|B|
|Radiated||EN 60601-1-2 (Medical)|B *|
|Line Voltage Fluctuation & Flicker|Line Voltage Fluctuation & Flicker<br>At 20%, 50% and 100% maximum load<br>Nominal input voltages|EN 61000-3-3||
|Harmonic Current Emission|230 VAC input voltage, 50 / 60 Hz<br>230 VAC  50 / 60 Hz, >300 W load|EN 61000-3-2<br>EN 61000-3-2|A, D<br>C|



* Performance referred to the enclosed package with additional HF chokes on output power and signal cables. Radiated emission relevant to the package variants, should be assessed at system level. 

|**PARAMETER**|**DESCRIPTION / CONDITION**|**STANDARD**|**TEST LEVEL**|**CRITERIA**|
|---|---|---|---|---|
||Reference standard for the medical version|EN 60601-1-2, 4th Edition|||
|ESD|15 kV air discharge, 8 kV contact,<br>at any point of the system.|EN 61000-4-2|4|A|
|Radiated Field|10 V/m, 20-2700 MHz, 1 kHz, 80% AM.|EN 61000-4-3|3|A|
|Electric Fast Transient|±2 kV on AC power port for 1 minute|EN 61000-4-4|3|A|
|Surge|±2 kV line to line; ± 4 kV line to earth on AC power port|±2 kV line to line; ± 4 kV line to earth on AC power port<br>EN 61000-4-5|4|A|
|Conducted RF Immunity|10 VRMS, 0,15 – 80 MHz, 1 kHz, 80% AM|EN 61000-4-6|3|A|
|Dips and Interruptions|200 – 264 VAC:<br>Drop-out to 0% for 10 ms<br>Dip to 40% for 5 cycles (100 ms)<br>Dip to 70% for 25 cycles (500 ms)<br>Drop-out to 0% for 5 s|EN61000-4-11<br>EN61000-4-11<br>EN61000-4-11<br>EN61000-4-11||A *<br>A (derate to 500 W)<br>A<br>B|
||100 – 127 VAC:<br>Drop-out to 0% for 10 ms<br>Dip to 40% for 5 cycles (100 ms)<br>Dip to 70% for 25 cycles (500 ms)<br>Drop-out to 0% for 5 s|EN 61000-4-11<br>EN 61000-4-11<br>EN 61000-4-11<br>EN 61000-4-11||A *<br>A (derate to 240 W)<br>A (derate to 400 W)<br>B|



* Performance referred to +5 VSB, +12 VSB and V1 (PS_OK goes to low level after 8 ms as per timing described at page 8 

## 10. SAFETY AGENCIES APPROVALS 

|**CERTIFICATION BODY**|**SAFETY STANDARDS**|**CATEGORY**|
|---|---|---|
|CSA / UL|CSA C22.2 No.60601-1, ANSI/AAMI ES60601-1 3rd Edition + A1|Medical|
||IEC/EN 60601-1 3rd edition+A1|Medical|
||Directive 93/42/CEE: Safety Requirement of the Medical Device|Medical|
||Directive 2014/30/EU: Electromagnetic Compatibility (EMC)||
||Directive EU 2015/863: RoHS 3||
||Meets all essential requirements of the standard IEC/EN/UL/CSA 61010-1 2nd edition||



tech.support@psbel.com 

MCC750 Series 

9 

## 41. CONNECTIONS AND PIN DESCRIPTION 

|**CONNECTIONS**<br>**CONNECTOR**<br>**REFERENCE**<br>**FUNCTION**<br>**AC Input Connections**<br>**P1:**AMTEK TB25C-B02P-13-00A-L<br>1<br>Line 1<br>~~ee~~<br>~~Nn~~<br>~~(i~~|**CONNECTIONS**<br>**CONNECTOR**<br>**REFERENCE**<br>**FUNCTION**<br>**AC Input Connections**<br>**P1:**AMTEK TB25C-B02P-13-00A-L<br>1<br>Line 1<br>~~ee~~<br>~~Nn~~<br>~~(i~~|**CONNECTIONS**<br>**CONNECTOR**<br>**REFERENCE**<br>**FUNCTION**<br>**AC Input Connections**<br>**P1:**AMTEK TB25C-B02P-13-00A-L<br>1<br>Line 1<br>~~ee~~<br>~~Nn~~<br>~~(i~~|**CONNECTIONS**<br>**CONNECTOR**<br>**REFERENCE**<br>**FUNCTION**<br>**AC Input Connections**<br>**P1:**AMTEK TB25C-B02P-13-00A-L<br>1<br>Line 1<br>~~ee~~<br>~~Nn~~<br>~~(i~~|**CONNECTIONS**<br>**CONNECTOR**<br>**REFERENCE**<br>**FUNCTION**<br>**AC Input Connections**<br>**P1:**AMTEK TB25C-B02P-13-00A-L<br>1<br>Line 1<br>~~ee~~<br>~~Nn~~<br>~~(i~~|
|---|---|---|---|---|
||M4 GROUND STUD|2|Line 2||
|||3|Protection Earth||
||||||
|**DC Input Connections**|**P200, P201, P202, P203:**<br>BRASS M4 THREADED TERMINALS|P200|**24 V Optional**<br>**24 / 48 V**<br>+V1<br>+V1<br>~~a~~||
||(tight to 0.8 – 1 Nm,<br>max. deep screws 7 mm)|P201|+V1|-|
|||P202|V1 RTN|V1 RTN|
|||P203|V1 RTN|-|
||||||
|**Signal Connector**|**P204:**|1|RMT (-)||
||MOLEX 501876-1640|2|RMT (+)||
|||3|I-SHARE||
|||4|+5 VSB||
|||5|PS_INHIBIT||
|||6|PS_OK||
|||7|SCL||
|||8|SDA||
|||9|#SMBALERT||
|||10|ADDR0||
|||11|-PS_INHIBIT||
|||12|ADDR1||
|||13|RSVD_RX (OUT)||
|||14|RSVD_TX (OUT)||
|||15|RTN||
|||16|+12 VSB||
||||||
|**Additional Control Functions**||SW600|V1_ADJ (UP)||
|||SW601|V1_ADJ (DOWN)||
|||DL600|Bi-colour LED||
|||Off|No AC/DC input power provided||
|||Blinking Green|Input power good, standby active,||
||||V1 inhibited||
|||Steady Green|V1 Active||
|||Steady or Blinking red|Power Supply Fault||



## 12. MECHANICAL SPECIFICATIONS 

|**PARAMETER**|**DESCRIPTION / CONDITION**|
|---|---|
|Weight|1087 g (2.40 lb) – models without protective cover<br>1125 g (2.48 lb) – models with protective cover|
|Overall Dimensions|101.6 x 234.0 x 41.0 mm (4.00 x 9.21 x 1.61 in) – models without protective cover<br>101.6 x 234.7 x 41.0 mm (4.00 x 9.24 x 1.61 in) – models with protective cover|



HORsees bel SOLUTIONSPOWER & 

**Asia-Pacific Europe, Middle East North America** +86 755 298 85888 +353 61 225 977 +1 408 785 5200 © 2020 Bel Power Solutions & Protection BCD.01056_B 

BCD.01056_B 

MCC750 Series 

10 

Figure 2. Mechanical Drawing – MCC750-1T24 / MCC750-1T48 Models 

Figure 3. Front View - MCC750-1T24 / MCC750-1T48 Models 

Figure 4. Rear View - MCC750-1T24 / MCC750-1T48 Models 

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tech.support@psbel.com 

11 

## MCC750 Series 

Figure 5. Mechanical Drawing - MCC750-1T24-PC / MCC750-1T48-PC Models 

Figure 6. Front View - MCC750-1T24-PC / MCC750-1T48-PC Models 

Figure 7. Rear View - MCC750-1T24-PC / MCC750-1T48-PC Models 

**Asia-Pacific Europe, Middle East North America** +86 755 298 85888 +353 61 225 977 +1 408 785 5200 

© 2020 Bel Power Solutions & Protection 

BCD.01056_B 

MCC750 Series 

12 

**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. 

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tech.support@psbel.com