This is the server.
If you mean to be using the Production ("Live") site, please go to
This server is used for reviewing content or features before they go live. The content, data, and functionality on this site may not match the live production website.


Linear Power Supply

Provide auxiliary dc power to your protective relays in the classroom or lab. The SEL-LPS Linear Power Supply is backed by our 10-year worldwide warranty.

Starting At

370 USD

Request more information


Find Rep By Location

The SEL-LPS is a general-purpose dc supply with two 24 Vdc and two 125 Vdc unregulated sources that can be combined to produce 24, 48, 125, or 250 Vdc at 50 VA. Low-voltage outputs supply +5 Vdc (500 mA), +15 Vdc (250 mA), and –15 Vdc (250 mA) of regulated power.

  • Compact desk/benchtop power supply for protective relay auxiliary power.
  • Four relay auxiliary power outputs.
    • Two 24 Vdc: connect in series for 48 Vdc.
    • Two 125 Vdc: connect in series for 250 Vdc.
    • Linear design provides "stiff" low-impedance outputs to start and serve high-surge loads.
  • Three regulated electronic-level outputs: +5 and ± 15 Vdc.
  • Safe solution to powering relays in laboratories, classrooms, and offices.



Ordering Information

Publications (Newest First)