The OBR04 series, which complies with the latest EMI coexistence standard IEC 60601-1-2:2014 (4th edition) and is specifically designed with patient and operator safety in mind, offers a 650W output power. The OBR04 is available in 12 different voltages from 12V to 58V with an efficiency of up to 91%. With a strong focus on "non-interference and radio coexistence," the product meets the EN55011 Class B conducted and radiated standard without the need for additional components. Built to ensure patient and operator safety, the OBR04 features 4,000 VAC input-to-output (2xMOPP) isolation, 1,500 VAC input-to-ground (1xMOPP) isolation, and 1,500 VAC output-to-ground isolation, whereas many conventional products offer only 500 VDC isolation. In order to ensure full operation up to an altitude of 5,000 meters, the OBR04 has been designed in accordance with the required creepage distances and additional isolation barriers.
Many countries, such as China and those in South America, provide medical care to populations in mountainous regions, and it is very common in these countries for health centers and hospitals to be located at altitudes above 3,000 meters. Medical equipment must be designed to ensure the highest level of safety up to 5,000 meters. The base altitude for power supplies in the design is 2,000 meters, but as altitude increases, the insulating properties of the air decrease, and electrical clearance distances must increase from 8 mm at 2,000 meters to 11.84 mm at 5,000 meters. This requires power supplies to be designed according to these physical requirements and, in some cases, to comply with local certifications such as CCC (China Compulsory Certification). The Chinese Safety Standard GB 4943.1-2011 stipulates strict rules for safety distances, and since December 1, 2012 - the distance between primary and secondary has increased by a factor of 1.48 to qualify the power supply and allow it to operate up to 5,000 meters.
Designed specifically for high-altitude applications, the Powerbox PRBX OBR04 supports an isolation voltage of 4,000 VAC (2 MOPP) input to output, 1,500 VAC (1 MOPP) input to ground, and 1,500 VAC output to ground, whereas most currently available products offer only 500 VAC. The OBR04's leakage current is a maximum of 300 µA, and its touch current is a maximum of 100 µA at 264 VAC and 63 Hz
The Powerbox OBR04 is available as standard in twelve output voltages: 12, 15, 18, 24, 28, 30, 32, 34, 36, 48, 57, and 58 VDC, covering a wide range of applications from intermediate 12 VDC bus voltages to load points up to 58 VDC for powering the latest generation of power amplifiers. Depending on the output voltage, the maximum power output starts at 600 W and rises to 650 W, with a peak power level of up to 720 W. An auxiliary 12 V output is provided for an additional fan, as well as a 5 VDC standby output at 200 mA.
“Designed for medical and high-altitude applications, the OBR04 is also suitable for other types of applications, such as radio transmitters and observation station equipment installed on mountaintops that require similar performance levels in terms of safety distances,” said Martin Fredmark, Vice President of Product Management at Powerbox. “We also see growing demand for industrial applications that require higher insulation voltages and for equipment that is as well-engineered as that used in high-altitude applications so that the final equipment is not dependent on sea level.”.
The OBR04's output voltage is protected against overvoltages exceeding 115-140% of the nominal output voltage and is also protected against overcurrent. The power supply also includes thermal shutdown and a TTL interface that provides a fault detection signal.
The OBR04's input voltage ranges from 90 VAC to 264 VAC and includes active PFC, typically 0.98. Demonstrating versatility, the power supply is designed for global operation with an input frequency range of 47 to 63 Hz. The input current at 115 VAC and 60 Hz is 8.4 A (RMS), and 4.2 A (RMS) at 230 VAC and 50 Hz. The power supply can operate safely within a temperature range of -10 to +70 degrees Celsius and can be stored at a temperature of -40 to +85 degrees Celsius.
Housed in an aluminum chassis, the OBR04 measures 165.8 x 101.6 x 62.5 mm (6.53 x 4.0 x 1.95 inches) and is available in a U-shaped form factor or as a closed case with a built-in fan. Based on an MTBF calculated according to MIL-HDBK-217F, at full load and 25 degrees Celsius, the OBR04 boasts an impressive MTBF of 190,000 hours.
The OBR04 series, designed for demanding, low-EMI applications, complies with EN55011, FCC, and VCCI Class B conductivity and emission standards. It also meets TÜV EN60601-1, UL ES 60601-1, and CSA C22.2 No. 60601-1 safety standards and is RoHS compliant.
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- Category: Power Supplies
Medical power supply with Class BF (Body Floating) insulation and up to 5000 meters altitude
Powerbox announces the launch of a new series of power supplies for medical applications requiring Class BF (Body Floating) isolation and continuous and reliable operation up to 5,000 meters altitude, to power healthcare medical facilities and equipment.
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