

SEL SEL-9321 Low-Voltage DC Power Supply
SEL-9321
Low-Voltage DC Power Supply
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.
Transceiver Power Supply
Provide power to fiber-optic transceivers, like the SEL-2814 Fiber-Optic Transceivers With Hardware Flow Control,
SEL-2812 Fiber-Optic Transceivers With IRIG-B, and SEL-3405 High-Accuracy IRIG-B Fiber-Optic Transceiver,
as well as to the SEL-2886 EIA-232 to EIA-485 Interface Converter, when connected to devices that cannot provide power through their serial ports.
Communications Device Power Supply
Provide +5 Vdc and ±10 Vdc power to other communications or instrumentation devices. SEL provides cables that are 1.82 meters (6 feet) long with 2.5 mm or 0.7 mm power plugs.
Provide +5 Vdc and ±10 Vdc power for communications devices and accessories, from a station battery or ac source.
Reliable, robust, and backed by the SEL worldwide, ten-year product warranty. Meets IEEE and IEC standards for surge withstand, fast transient, and RFI immunity requirements in electric power substations.
Choose from three voltage inputs:
24 Vdc
125/250 Vdc or Vac
48/125 Vdc or 125 Vac
Easily mount to any flat surface or DIN rail with the included mounting hardware.

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