Category: Power Product of the Year
By utilising a high efficiency topology, COSEL’s TUNS1200 delivers 21% more power in an amazing 36% smaller footprint than existing AC/DC modules. Designed using the very latest technology and packaged in a sealed plastic case with an aluminium baseplate, the TUNS1200 delivers its full power up to +85 degrees centigrade baseplate temperature, and is able to operate safely at up to +100 degrees centigrade with a derating.
Designed for demanding worldwide applications, TUNS1200 power supplies have an input voltage range of 85VAC to 305VAC single phase, and conform to the safety standards input voltage range of 100-277 VAC (50/60Hz).
To cover a wide range of applications, the TUNS1200 series embraces three output voltages versions: TUNS1200F12 (12V / 84A), TUNS1200F28 (28V / 43A) and the TUNS1200F48 (48V / 25A). Output voltage can be adjusted +/- 20% (-20% /+10% for the 48V) using the trimming pin, though the TUNS1200 series include an active Voltage Trimming input (VTRM) making it possible to adjust the output voltage down to zero by applying an external voltage source. The TUNS1200 has an excellent power efficiency of 92% typical and a power factor of 0.98 at 100V.
For applications such as battery chargers requiring constant current (CC), the TUNS1200 includes a dedicated pin (ITRM) and by applying a DC voltage or connecting a resistor to the –S terminal it is possible to set the constant current from just above zero to the desired current.
In applications where more power is required and physical height is an issue it is possible to connect up to no less than nine TUNS1200s in parallel, delivering up to 9,750W in conduction cooling mode. When connecting 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. Modules are easily set to constant voltage or constant current operating modes.
Optimized for conduction cooling, the TUNS1200 series can be operated within a temperature range of -40 to +100C baseplate, 20 – 95%RH (Non condensing).
Housed in a sealed plastic case with aluminium baseplate, the TUNS1200 measures a diminutive117.3 x 86.8 x 12.7 mm (4.62 x 3.42 x 0.5 inch), and weighs less than 280 grams.
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.
Utilizing a design that is optimized for conduction cooling, the TUNS1200 is suitable for applications requiring a silent power solution such as in surgery rooms. 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.
Meeting the needs of both 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 the latest power switching technologies that contribute to reducing its size by more the 35% compared to existing offerings, the TUNS1200 makes it possible for equipment manufacturers in demanding industries e.g. process control, signaling, and surveillance to integrate the module when space is critical. As a result of its building practices and large baseplate it can be used in industrial applications with low airflow levels in restricted environments.