Compact industrial 3kW programmable power supplies

With constant voltage and constant current operation and single or three-phase inputs

  • Compact industrial 3kW programmable power supplies
    Compact industrial 3kW programmable power supplies

The 3000 Watt TDK-Lambda HWS3000 programmable AC-DC power supply has a compact 270 x 150 x 61mm package. Rated output voltages (24V, 48V, 60V or 130V) and output currents are fully programmable (CV/CC) from zero to their maximum rating. The HWS3000 series is available with a single phase 85 - 265Vac or three phase 170 - 265Vac input. The output can be programmed via a serial RS485 interface (MODBus protocol) or analogue 1 - 5V or 4 - 20mA signals. These very compact products also feature a variable speed fan with typical acoustic noise of 45dB at <70% load and 25°C ambient temperature. The power supplies can be used in a wide range of applications including test and measurement, semiconductor manufacturing, RF amplifiers, laser processing, printing and industrial equipment.

The HWS3000G can deliver 1500W from a single phase low line input voltage (85 to 132Vac) and 3000W from a high line input voltage (170 to 265Vac). The HWS3000GT delivers 3000W from a three phase input voltage of 170 - 265Vac. Four nominal output voltages, 24V, 48V, 60V and 130V, can be programmed to provide 0 - 28.8V, 0 - 52.8V, 0 - 66V and 0 - 156V. Up to three units can be connected in series or ten units in parallel. The output voltage slew rate can be digitally programmed and monitored, along with cumulative operating time information, fault history and product identification information. Digital programming can be performed without powering up the unit.

No derating up to 50°C

A 5V 2A standby voltage, remote on/off, remote sense, fan fail and power good signals are included as standard. With efficiencies up to 93%, internal heating is reduced, allowing reliable operation in a compact package. The HWS3000 models can operate from -20°C (-40°C start-up) and up to +70°C ambient temperatures, with linear derating from 50°C to 50% load at +70°C. Both models have a five-year warranty and conservatively rated electrolytic capacitor temperatures for long field life. The output terminals are user-configurable for horizontal or vertical connection.

Input to output isolation is 3000Vac, input to ground 2000Vac and output to ground 1500Vac. The leakage current is <0.85mA and the maximum operating, transport and storage altitude is 5000m (2000m for the IEC/EN62477-1 standard). Safety approvals include IEC/EN/UL 62368-1 and IEC/EN62477-1 (OVC III) with CE/UKCA marking for low voltage, EMC and RoHS directives. The units comply with EN55032A, EN55011-A and FCC-A for conducted and radiated emissions. The series also meets EN 61000-3-2 harmonics and IEC 61000-4 immunity standards.