COSEL announced the launch of the HCA3500TF, a fanless 3-phase / 3-wire 3500 W AC/DC enclosed power supply, designed and optimized for industrial equipment such as high-frequency amplifiers, laser processing machines, and robotics. Addressing worldwide applications and 3-Phase Delta or 3-Phase Star networks, the HCA3500TF input voltage covers a wide operating range of 180 VAC to 528 VAC. Using the latest energy-optimized, digitally controlled switching topology and Wide Band Bap (WBG) semiconductors, the power supply offers an impressive efficiency figure of up to 94% at 400 VAC. The HCA3500TF is available in two output voltages, 48 VDC and 65 VDC, these being adjustable in a range of +15%/-50% using the Trim function. The compact, low profile design comes in at 65 mm complete with cover (1.5U) and includes an aluminum plate assisting conduction cooling to the dissipating element e.g., a cold wall or water-cooled baseplate. For higher power applications the HCA3500TF can be connected in parallel up to 10 units and to deliver up to 31.5 kW.
Industrial applications such as welding robots, high-frequency amplifiers, tooling machines, and electrolyzers are often required to operate in harsh environments, requiring the power supply to deliver high power without ventilation. In such conditions, conduction cooling applies and so the power supply must be designed to guarantee a high level of performance, and optimized to eliminate hot spots. As well, industrial equipment can be installed all around the world and powered from 200 V to 400 V grids. In order to reduce single-phase peak loading and optimize load-balancing on their networks, systems architects are favoring 3- Phase power solutions, which COSEL’s HCA3500TF has been designed for, accommodating 3-phase three-wire Delta or 3-Phase three wire Star installation.
With an input voltage range of 180 to 528 VAC, the HCA3500TF is available in two different output voltage: 48 VDC/73A, adjustable from 33.60 to 55.20 VDC using the built-in potentiometer, or from 24.00 to 55.20 VDC when using the trimming function and, respectively, for the 65 VDC/54A model, from 45.50 to 74.75 VDC and 32.50 to 74.75 VDC. Under nominal working conditions, the output power is 3.5 kW.
In addition to the main output, the HCA3500TF includes a 12 VDC/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.
To guarantee the highest levels of efficiency and thermal robustness, the HCA3500TF uses an optimized, digitally controlled switching topology and a power stage with Silicon Carbide (SiC) MOSFETs and Diodes, conferring at 400 VAC input, up to 94% efficiency to the 65 V output model.
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 +70 degrees C with a 0 to +55 degrees C 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 4,243 VAC, input-to-ground (FG) of 2,829 VAC, and output-to-ground (FG) of 2,000 VAC. Complying with the IEC62368-1, at its rated load and 480 VAC, 60Hz, the leakage current is a maximum of 3 mA.
Designed for integrated industrial applications in 1.5U height, the HCA3500TF measures 110 x 65 x 420 mm [4.3 x 2.6 x 16.5 inches] and weighs 5 kg max.
The HCA3500TF is suitable for a wide range of applications including measurement and analysis equipment, machine tools, and semiconductor manufacturing equipment and the 65 VDC model is ideal for powering Radio Frequency Power Amplifiers (RFPA), as well as 60 V Lithium-Ion batteries chargers.
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.
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