Free-air convection cooling power supplies include 800W model

Cosel has introduced 800W free-air convection cooling power supply. The AEA800F series is able to deliver 300 per cent peak power for a period of up to 3,000 milliseconds. 

The power supply is designed for applications requiring a high level of safety and is certified according to the EN62477-1 (OVC III) standard for industrial applications. This means that a final equipment powered by the products can be directly connected to the main distribution panel without adding an extra level of isolation. This simplifies the systems designer’s task, reduces costs and guarantees the highest level of efficiency.

For medical applications, the AEA800F input to output isolation complies with 2MOPP, its input to ground with 1MOPP, and output to ground with 1MOPP making the product suitable for Body Floating (BF) applications. The units are approved in accordance with ANSI/AAMI ES60601-1 and EN60601-1 3rd Edition.

The AEA800F has an input to output isolation of 4,000VAC, input to ground (FG) of 2,000VAC and output to ground (FG) of 1,500VAC.

 and is approved in accordance with ANSI/AAMI ES60601-1, and EN60601-1 3rd Edition for medical applications. It is also suitable for body floating (BF) applications and complies with 2MOPP (in/out) and 1MOPP (out/fg) safety requirement. The AEA800F layout is optimised for free-air convection for use in equipment being operated in low noise environments.

With the increasing levels of automation in industrial and medical applications, power supplies must be able to deliver extra power during peak operation times as required by dynamic loads e.g., motor start up. To satisfy and sustain such conditions the power supply must be designed with a high dynamic control level and a power stage able to sustain repetitive peak loads.

The AEA800F is designed for international applications and has an input voltage of 85 to 264V AC. Three output voltages – 24V, 36V and 48V- are available with respective current ratings of 34A (peak 72.5), 22.7A (peak 48.4A) and 17A (peak 36.3A). Output voltage can be adjusted using a built-in potentiometer.

For low harmonic current distortion, the AEA800F uses active power factor corrector (PFC), and the switching stage uses an LLC resonant topology deploying the latest generation of power semiconductors, conferring to a typical efficiency of up to 95 per cent.

For additional power the AEA800F can be connected in parallel, up to six units. When in parallel, by adjusting the output voltage on the master unit, slaves automatically adjust their output voltage to be of equal value.

Optimised for convection cooling, the AEA800F can be operated within an ambient temperature range of -20 to +70 degree C. Depending on the assembly method and ventilation used in the final equipment, a derating may apply as specified in the technical documentation.

The AEA800F includes built-in inrush current, over-current, over-voltage protection circuits, and thermal protection.

In its open frame format, the AEA800F measures 50 x 127 x 203.2mm (1.97 x 5 x 8.0 inches) and weighs 1.4kg max with cover. 

The AEA series is suitable for a large range of applications such as: robots and robotics, infusion-pumps, ventilators, actuators, process control, radio and transmission equipment, and emergency signalling.

The AEA800F series has a full five-year warranty and conforms to the European RoHS, REACH and Low Voltage Directives.

The AEA series includes three models covering from 600W to 1000W, the AEA600F, AEA800F, AEA1000F all offering peak power for demanding applications.

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