Bel Power Introduces Two Series of 750 Watt AC-DC Power Supplies
The convection cooled, single output devices provide either 24 or 48 volt outputs and serve the medical and industrial environments
The ACC750 industrial series and the MCC750 medical series each consist of four models and operate from input ranges of 85 to 305 VAC. The full 750 watts output is available over 180 to 305 VAC inputs, with degradation to 600 Watts with power inputs ranging over 85 to 137 VAC. They feature a power factor of 0.95.
Both the medical and the industrial series are available in U-shaped packages, 1.6 inches high. Of the four units in each series, two provide 24 volt outputs, and the other two provide 48 volt outputs. At each voltage levels of both series, one of the two is equipped with protective cover.
The CC750 industrial series and the MCC750 medical series are available with or without protective covers. Image courtesy of the ACC750 datasheet
All eight units feature efficiency levels of up to 94% and are cooled by natural convection, with no cooling fan required. That makes all members of both series well-suited for applications where acoustical noise would be problematic. They supply 750 Watts peak power, and as much as 900 watts for periods of 10 seconds or less.
All members of both series communicate over the Power Management Bus communications protocol and can be turned on or off remotely. They can be connected in parallel if power beyond 750 watts or redundancy is called for. All units provide both 12 and 5 volt standby outputs.
The output voltages of both the 24 volt and the 48 volt units can be adjusted up or down by ±5%
Important Safety Considerations
Earth Leakage Current
| 115 VRMS | 230 VMS | 264 VMS | |
| ACC750 Series | 150 µA (nominal) | 170 µA (nominal) | 400 µA (max) |
| MCC750 Series | 170 µA (nominal) | 300 µA (nominal) | 750 µA (max) |
Touch Leakage Current and Patient Leakage Current
At 264 VRMS, for both series, maximum touch leakage current as well as maximum patient leakage current are both 100µA and 500µA under normal conditions and with one fault, respectively.
Applications
The MCC750 Series
- Medical devices and applications
- Dental equipment
- Laboratory and analysis equipment
- X-ray and CT scanners
The ACC750 Series
- LED lighting engines
- Video wall display and entertainment lighting
- Industrial control systems
- Industrial laser applications
Physical
- Both series are EN61000-3-2 compliant (Class C, >25% load)
- They all measure 4.00 x 9.24 x 1.61 inches
- All units operate over a temperature range of -20 to +70℃, with output derating beginning at 35℃
Environmental and Regulatory
Both series comply with CE Directive EU 2015/863: RoHS 3
The ACC750 Series
- Features ITE safety approval to IEC 62368-1 and LED lighting approval to UL 8750
- CSA / UL CSA C22.2 No.62368-1, UL 62368-1
- IEC IECEE CB Certification IEC/EN 62368-1
- CE Directive 2014/35/EU: Electrical Safety: Low Voltage electrical equipment (LVD)
- CE Directive 2014/30/EU: Electromagnetic Compatibility (EMC)
- CE Directive EU 2015/863: RoHS 3
- Meets all essential requirements of the standard IEC/EN/UL/CSA 61010-1 2nd edition
The MCC750 Series
- Complies with the IEC/EN 60601-1 safety standards for medical equipment requiring 2x MoPP protection grade
- Directive 93/42/CEE: Safety Requirement of the Medical Device
- Directive 2014/30/EU: Electromagnetic Compatibility (EMC)
- IEC/EN 60601-1 3rd edition+A1
- Meets all essential requirements of the standard IEC/EN/UL/CSA 61010-1 2nd edition
- They display the CE-Mark for the European Low Voltage Directive (LVD)
