Powerbox’s medical power supply delivers power and safety to healthcare facilities at altitude

19 DECEMBER 2017

Powerbox, one of Europe’s largest power supply companies, and for more than four decades a leading force in optimizing power solutions for demanding applications, announces the launch of a new series of power supplies for medical applications requiring BF (Body Floating) class insulation and full, reliable operation up to 5,000 meters altitude to power medical healthcare facilities and equipment. Complying with the latest EMI coexistence standard IEC 60601-1-2: 2014 (4th edition) and specifically designed with patient and operator safety in mind, the OBR04 series delivers an output power of 650W.
The OBR04 is available in 12 different voltages from 12V to 58V with an efficiency rating up to 91%. With a strong focus on ‘no interference and radio coexistence’, the product meets conducted and radiated EN55011 class B without requiring any additional components. Built to ensure patient and operator safety, the OBR04 has an input-to-output isolation of 4,000 VAC (2xMOPP), an input to ground of 1,500VAC (1xMOPP) and a 1,500VAC output-to-ground, when many conventional products offer only 500VDC isolation. In order to guarantee full operation up to an altitude of 5,000 meters, the OBR04 has been designed in respect of required creepage distances and additional isolation barriers.
The OBR04 leakage current is 300µA maximum, and the touch current is 100µA maximum at 264 VAC and 63 Hz.
Powerbox’s OBR04 is available as standard in twelve output voltages; 12, 15, 18, 24, 28, 30, 32, 34, 36, 48, 57 and 58VDC, covering a large range of applications from 12VDC intermediate bus voltages through to point-of-loads up to 58VDC to power the latest generation of power amplifiers. Depending on the output voltage the maximum output power starts at 600W and rises to 650W with a peak power level of up to 720W. An auxiliary 12V output is provided for an additional fan, as well as a standby 5VDC supply at 200 mA.
The output voltage of the OBR04 is protected against overvoltage exceeding 115-140% of the nominal output voltage and is over-current protected. The power supply also includes thermal shutdown and a TTL interface that provides a power fail detect signal.
The OBR04 input voltage spans from 90VAC to 264VAC and includes an active PFC, typically 0.98. Exhibiting versatility, the power supply is designed for global operation with an input frequency range of 47 to 63Hz. The input current at 115VAC and 60Hz is 8.4A (RMS), and 4.2A (RMS) at 230VAC 50Hz. The power supply can be safely operated within a temperature range of -10 to +70°C and stored at -40 up to +85°C.
Housed in an aluminum chassis, the OBR04’s dimensions are 165.8 × 101.6 × 62.5 mm (6.53 × 4.0 × 1.95 inches) and it is available in a ‘U’ shape chassis or an enclosed box with built-in fan. Based on a calculated MTBF per MIL-HDBK-217F, at full load and at 25 degrees C, the OBR04 has an impressive MTBF of 190,000 hours.
Targeting demanding application and low EMI, the OBR04 series meets EN55011, FCC and VCCI Class B conducted and emitted standards. It also complies with safety standards TÜV EN60601-1, UL ES 60601-1, CSA C22.2 No.60601-1 and is RoHS compliant.

Powerbox | www.prbx.com

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