1.2 kW low profile AC-DC module for industrial and medical: Page 2 of 3

August 11, 2020 //By Nick Flaherty
1.2 kW low profile AC-DC module for industrial and medical
Cosel's TUNS1200 280g 1.2kW AC-DC module measures 117.3 x 86.8 x 12.7 mm for medical and industrial designs
issue it is possible to connect up to nine TUNS1200s in parallel, delivering up to 9,750W in conduction cooling mode. When connected units in parallel and utilizing the Current Balance (CB) pin, the COSEL active current sharing ensures that each module delivers the correct amount of current to the load.

The AC module measures 117.3 x 86.8 x 12.7 mm (4.62 x 3.42 x 0.5 inch). The unit includes four mounting holes for fixing the unit to a cold plate or an additional heatsink. The standard unit comes with M3 threaded mounting holes, and a 3.4 millimeter non-threaded mounting insert option is available (option T).

The units have a 3,000VAC input to output isolation voltage (2MOOP), 2,000VAC input to ground (1MOOP) and 500VAC output to ground. Overcurrent, overvoltage and thermal protection are included as standard.

Suitable for industrial and medical applications, the TUNS1200 complies with the safety agency approvals: UL62368-1, EN62368-1, C-UL (equivalent to CAN/CSA-C22.2 No.62368-1 ), ANSI/AAMI ES60601-1, EN60601-1 3rd, C-UL (equivalent to CAN/CSA-C22.2 No.60601-1), and complies with IEC60601-1-2 4th. The TUNS1200 includes an active filter, complying with the harmonic attenuation IEC61000-3-2 (Class A).

Benefiting from a design optimized for conduction cooling, the TUNS1200 is suitable for applications requiring a silent power solution such as in a surgery room. Equally, it is suitable for industrial applications when forced air ventilation is impossible due to environmental constraints. Attached to a chassis or cold plate, the TUNS1200 can deliver impressive power with a high level of reliability.

The power supply complies with the RoHS directive and is CE marked in accordance with the Low Voltage Directive.


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