Cosel contact-cooled AC power supplies from 50 to 750 W

Cosel contact-cooled AC power supplies are encapsulated power supplies mounted on printed circuit boards designed to dissipate the heat they generate exclusively through an aluminium base plate.

Provided they are installed on the appropriate application surfaces, they do not require any additional fans or special flue effects and heat-conductive contact surfaces can reach temperatures of up to 100°C before an integral overtemperature trip puts on the brake.

The range extends from the integral single-module solution, in standardised brick form factor, to multiple output modules variations, which are supplied from an EC input front-end to provide several independent supply voltages. The power modules are designed for permanent operation, under full load in 24 x 7 mode.

TU series single modules offer a compact solution, requiring only an external EMI filter to attenuate line-based faults.

Power supplies range from the 50 W module (on a ¼-brick space of 37 x 59 mm with a height of 12.7 mm), though 100 W, in a ½-brick format, up to 300 or 500 W in a full-brick format, measuring 62 x 117 mm, with the same 12.7 mm height.

The TUNS basic versions have safety shut-offs, as standard, for overvoltage, overcurrent and overtemperature as well as a settings range for output voltage and additional remote sensor connections to compensate for voltage drops in the output cables. The 500 W version has an additional peak power potential.

The 300 to 500 W versions have an optional, additional function package that includes a standby output for standby applications and an insulated remote on/off contact to shut down the main output, so that additional power can be saved in sleep cycles.

The current range of DPG/DHS modules has been extended with a plug-and-play enabled option for the SNDPG module and the SNDHS series.

Power modules on complete assemblies (in the form of a printed circuit board with a filter, fuse and plug or screw connectors on an aluminium base plate) are now available - the user has only to complete the mechanical assembly, using the 3 mm thick base plate, to quickly assemble a robust CE or UL-compliant AC power supply with an output of up to 750 W.

Output modules with 50, 100 or 250 W are supplied from an AC front-end module to correct harmonics with floating output voltages between 3.3 and 48 V.

Their flexible and compact design make these modules suitable for use in modern lighting systems and LED signal equipment, robots and industrial automation, compact measuring and analysis equipment, and outdoor applications.