PULS QTD20 Power Supply
PULS UK has launched the QTD20.241 DIN-Rail power supply for use with AC motors and drives.
At only 65mm wide and offering 24VDC at 20A, this 95% efficient Din-Rail power supply uses existing system power to provide secure DC for control systems.
Modern machines typically use maintenance-free AC-motors controlled by frequency converters or servo amplifiers. Such controllers have an intermediate DC-bus to which all individual drives are
connected.
The PULS DIMENSION QTD20 power supply can be connected directly to the intermediate DC-bus, removing the need for a separate mains or low voltage supply for control equipment.
In the event of a mains failure, the QTD20 utilises the power from the DC-bus capacitors, which are
charged from the kinetic energy of the motor until the motor has come to a complete stop.
Key features include 600VDC input voltage optimised for intermediate DC-busses of drive systems, efficiency up to 95% with 125% peak load capability, active input transient filter, full output power between -25°C and +60°C, minimal inrush current, reverse input polarity protection and DC-OK relay contact.
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