SEL-UPS Uninterruptible Power Supply
Get reliable, affordable dc power wherever you need it.

The SEL-UPS Uninterruptable 48 Vdc Power Supply can support a 0.25 Aload for 24 hours or a 0.6 A load for up to eight hours.

SEL-9321 Low Voltage DC Power Supply
500-Meter Port-Powered RS-232 & IRIG-B to Fiber-Optic Modems

Use the SEL-9321 Low-Voltage DC power supply as an inexpensive, robust means to convert high-voltage DC battery sources for use with communications or instrumentation devices.