Powerbox Presents 700W Power Supply for Conduction Cooling
The power supply operates with a wide universal input range from 85 to 264 VAC with power factor correction (PFC)
Powerbox has introduced a new 700W power supply for industrial applications, the OFI700A.
Optimized for conduction cooling, the OFI700A delivers high-performance levels across a baseplate temperature range of -40 to +95 degrees C, without the use of a fan.
The power supply operates with a wide universal input range from 85 to 264VAC with power factor correction (PFC) and is available with DC outputs of 12V, 28V (adjustable to 24V) or 48VDC. A 12V auxiliary is also provided.
Conduction cooling requires very specific building practices and the PRBX OFI700A has been designed to guarantee optimal heat transfer from the dissipating components to the baseplate, delivering a high level of performance within an operating temperature of -40 to +95 degrees centigrade at the baseplate.
Depending on the assembly method and the overall cooling conditions, a derating may apply as specified in the technical documentation.
To cover a wide range of applications, the OFI700A operates with a wide universal input range from 85 to 264VAC. The unit includes a PFC with a coefficient of 0.95/0.92 (110VAC/230VAC). For applications powered by a DC bus e.g., mining equipment, the OFI700A operates from 120 to 350VDC.
The OFI700A is available in three versions of single output DC voltage, 12V/58.4A; 28V/25A and 48V/14.6A. The output voltage can be adjusted using the provided onboard potentiometer.
For example, the 28V output can be adjusted from 22.4V to 33.6V, covering the 24V applications. An additional voltage of 12V/0.1A is provided for auxiliary functions.
For safety, the OFI700A has an IN/OUT isolation of 3,000VAC and IN/FG of 2,000VAC. Output isolation to FG is 500VAC. The power supply includes overcurrent protection with auto-recovery, over-voltage and over-temperature protection.
The OFI700A board includes easy access to auxiliary functions via onboard connectors, namely: Remote Control, Output Voltage Sensing, DC-OK, Inverter Operation Mode (IOG) and auxiliary 12V.
Powerbox Power Supply, OFI700A has endured shock and vibration testing as specified in MIL-STD-810H. In that respect, the products have been tested to levels far above normal operating conditions and are specified to sustain a high 20G vibration level during transportation.
In its open frame format, the OFI700A measures 126 x 38 x 250mm (4.96 x 1.5 x 9.84 inches) and weighs 0.95kg max. An optional metal cover is available, adding just 2mm to the height and 150 grams to the weight (Option N).
