Designed to replace Schweitzer Engineering Lab’s discontinued UPS in form and fit, the SEI 150/48-SEL is a drop in replacement.  No need to change cabling or panel cutouts.

Overall output power is 150 watts (2.7 amps)

The SEI/48-SEL will support surges up to 30Amps for 200ms. When properly fused, all SEI DC UPS System will support a similar surge profile

Individually fused (up to 15 amp fuse) terminal post output ports.
24 Vdc or 48 Vdc output. Voltage regulation optional.

• 9 Ah battery provides up to 10 hours backup based on load.
• Hot Swappable Batteries without taking system down.
• LVD (Low Voltage Disconnect) protects batteries from over-discharge and extends battery life.
• Automatic Monitoring and Load Testing for Battery Replacement.

Integrated Alarm Contacts alert on loss of AC, battery test failure, and low battery voltage.

To view our Schweitzer Replacement UPS specification sheet, click here.

To view the full line of SEI DC UPS’s for other switch gear manufacturers click here