Cosel moves to SiC for fanless 3-phase 3.5kW power supply
Cosel has launched a conduction-cooled, fanless 3-phase / 3-wire 3500W AC-DC enclosed power supply for industrial equipment using silicon carbide (SiC) transistors.
The HCA3500TF has an efficiency of up to 94% and can be used in parallel with up to ten units for high-frequency amplifiers, welding robots, laser processing machines and robotics.
The AC-DC unit can be used in worldwide applications from 180VAC to 528VAC and in 3-Phase Delta or 3-Phase Star networks through a digitally controlled switching topology.
The HCA3500TF is available in two output voltages, 48VDC and 65VDC, these being adjustable in a range of +15%/-50% using the Trim function. The 48VDC/73A version is adjustable from 33.60 to 55.20VDC using the built-in potentiometer, or from 24.00 to 55.20VDC when using the trimming function and, respectively, for the 65VDC/54A model, from 45.50 to 74.75VDC and 32.50 to 74.75VDC.
The 1.5U unit has a height of 65mm complete with cover (1.5U) and includes an aluminum plate assisting conduction cooling to the dissipating element such as a cold wall or water cooled baseplate.
In order to reduce single phase peak loading and optimize load-balancing on 200V to 400V grid networks, system architects are favoring 3-Phase power.
In addition to the main output, the HCA3500TF includes a 12VDC/1A auxiliary output which can be used for remote ON/OFF and its external control circuit. The auxiliary output is isolated from the input, output and Functional Ground.
The HCA3500TF includes inrush current limiting circuitry, overcurrent and overvoltage protection and thermal protection. Exhibiting versatility and robustness, the power supplies can be operated in an ambient temperature range of -10 to +70C with a 0 to +55C baseplate temperature. Depending on the final equipment assembly style and cooling conditions, a derating may apply.
For system integration and to reduce conducted noise, the HCA3500TF includes an input filter and complies with the FCC Part15 class A, VCCI class A, CISPR11 class A, CISPR32 class A, EN55011-A and EN55032-A.
The HCA3500TF has an input to output isolation of 4,243VAC, input to ground (FG) of 2,829VAC and output to ground (FG) of 2,000VAC. Complying with the IEC62368-1, at its rated load and 480VAC, 60Hz, the leakage current is a maximum 3mA.
The HCA3500TF complies with safety requirements UL62368-1, EN62368-1, C-UL (equivalent to CAN/CSA-C22.2 No.62368-1). The power supplies comply with the RoHS and Low Voltage directives and carry the CE mark and UKCA.
www.coseleurope.eu/Products/AC-DC/HCA
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