Click on your required OUTPUT Voltage

 

WELCOME TO SEI POWER

Founded in 1977, SEI manufactures DC (direct current output) critical power systems and customer-premises power equipment (CPE) for industrial users, wireless, telephone service providers, and the military.

SEI has shipped over 30,000 DC critical power systems to customers around the world. SEI products are proudly made in the USA.

LEARN MORE

Click on your required output voltage

 

WELCOME TO SEI POWER

Founded in 1977, SEI manufactures DC (direct current output) critical power systems and customer-premises power equipment (CPE) for industrial users, wireless, telephone service providers, and the military.

SEI has shipped over 30,000 DC critical power systems to customers around the world. SEI products are proudly made in the USA.

LEARN MORE

REQUEST A QUOTE

24Vdc
48Vdc

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PRODUCTS

For product and ordering information, click on the appropriate link below:

DC-UPS

A DC-UPS is an uninterruptible power system that takes in primary power (usually utility AC) and outputs DC voltage while providing backup power from the integrated batteries in the event the incoming (utility AC) power is lost.
 

PoE Midspans

SEI's Power over Ethernet Midspans inject 48 Vdc power on to Ethernet cabling to power end-point devices such as IP phones, Wireless Access Points, cameras and other IP applications.


 

ISDN Products

SEI is the leading supplier of uninterruptible power systems and NT1s for Digital Centrex (ISDN) customer premises equipment. All SEI units come fully assembled and ready to mount!


 

REQUEST A QUOTE

24Vdc
48Vdc

For order information or technical support call us at 301-694-9601 or email us using our Contact Us form

 

For order information or technical support call us at 301-694-9601 or email us using our Contact Us form

CONTACT US