Frequently Asked Questions (FAQ) - TDK-Lambda HWS1500-24:

1. What is the input voltage range?

The HWS1500-24 accepts a universal AC input from 85VAC to 265VAC at 47 - 63Hz, or a DC input from 120VDC to 330VDC. This wide range and built-in active PFC ensure high power factor and robust performance under fluctuating line conditions.

2. What are the rated output specifications?

All ratings apply at full input and 50% - 100% load unless otherwise noted.

3. What efficiency can I expect?

Typical efficiency is 88% at 50% - 100% load. Actual efficiency will vary slightly with line voltage, load level, and ambient temperature.

4. Which protection features are included?

The HWS1500-24 integrates multiple protection mechanisms to safeguard both the supply and the load:

- Overvoltage protection (OVP)

- Overcurrent protection (OCP)

- Short-circuit protection (SCP)

- Overtemperature protection (OTP)

In each case, the unit will either shut down or limit current to prevent damage and will automatically attempt recovery when the fault clears.

5. How do Remote On/Off and Remote Sense work?

- Remote On/Off allows you to enable or disable the output via an external TTL-level signal, for system-wide power sequencing.

- Remote Sense compensates for voltage drops in the load wiring by sensing the actual voltage at the load terminals and adjusting the output accordingly.

These features help maintain precise, reliable operation in distributed applications.

6. What safety approvals and environmental standards does it meet?

Certified to major global safety standards:

- CSA 60950-1, EN 60950-1, UL 60950-1

- CSA 62368-1, EN 62368-1, UL 62368-1

- EN 50178

Environmental compliance includes RoHS, China RoHS, REACH, and California Proposition 65 regulations.

7. What is the operating temperature range and cooling method?

The unit operates from -10°C to +70°C. Above +50°C, output power must be derated per the datasheet curve. Cooling is provided by an internal forced-air fan, drawing ambient air through the enclosed chassis for efficient heat removal.

8. What are the mechanical dimensions and weight?

The chassis-mount design fits standard industrial racks or enclosures.

9. What accessories and optional models are available?

- EMC/PFC filter modules and line filters

- Mounting brackets, feet, and chassis-mount hardware

- Remote On/Off and Sense cabling kits

- 2D/3D CAD drawings (DXF, IGES, STEP) and ECAD libraries (SnapMagic, SamacSys, Ultra Librarian)

- Special variants:

 + HWS1500-24/HD for harsh environments

 + HWS1500-24/ME for medical applications

10. Where can I find documentation and technical support?

Full documentation is available on the TDK-Lambda product page.

Please contact QTE Technologies (qtetech.com/en)