New low profile open frame power supplies for demanding industrial applications

Cosel Co, Ltd has added two open frame compact power supplies for demanding industrial applications to its LHA series. Benefiting from the newest power switching technologies, the LHA10F and LHA15F are 15% smaller and provide a leakage current 50% lower than conventional products on the market. Intended for a wide range of applications, they can operate in a wide temperature range from -10C to +70C. The power supplies are UL/EN62368-1 certified.

With the increased levels of systems integration, factory automation demands more compact power supplies to work with the highest levels of safety in various environments. The LHA10F and LHA15F have been designed to provide robust isolation levels and low leakage currents. Intended for worldwide applications, the devices have an input voltage range of 85VAC to 264VAC single phase and conform to the safety standards input voltage range of 100-240VAC (50/60Hz).

The power supplies are offered in five output voltages, 3.3V, 5V, 12V, 15V, 24V, with respective currents. On these versions, the 3.3V output voltage can be adjusted in the range of 2.85V to 3.63V, all other voltages being factory fixed.

They benefit from an optimised switching topology designed for higher power LHA series and efficiency up to 84.5% at 230VAC and rated load.

The units are designed to operate from -10C to +70C, and they can be mounted in any orientation, though a derating may apply depending on the ambient temperature and environment.

In conducted noise tests, the LHA10F and LHA15F comply with FCC-B, VCCI-B, CISPR11-B, CISPR32-B, EN55011-B, and EN55032-B.

The units have a 3,000VAC input to output isolation voltage, 2,000VAC input to ground and 500VAC output to ground. They offer low leakage currents, the LHA10F has 150µa max, and the LHA15F has 100µa maximum at 240VAC/60Hz.

Designed for use in demanding applications where space is often limited, the LHA10F measures just 50mm x 21.5mm x 62.5mm (1.97" x 0.85" x 2.46") and weighs 45g max. The LHA15F measures 50mm x 21.5mm x 73.5mm (1.97" x 0.85" x 2.89") and weighs 60g max.

They are suitable for various applications, including measurement and analysis equipment, machine tools and industrial robots, display equipment, and semiconductor manufacturing equipment. They comply with the RoHS and Low Voltage directives and carry the CE mark and UKCA.