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.

Starting At

$253

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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.

Features

Right Side

1. 1
  
  Ground
2. 2
  
  +/Hot Power Input
3. 3
  
  –/Neutral Power Input
4. 4
  
  –10 Vdc Output
5. 5
  
  +10 Vdc Output
6. 6
  
  Output Common
7. 7
  
  +5 Vdc Output
1
2
3
4
5
6
7

Details

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.

1.82 meter (6 feet) cable with 2.5 mm plug, compatible with SEL-2820, SEL-2824, SEL-3010, SEL-3021, and SEL-3022.
1.82 meter (6 feet) cable with 0.7 mm plug, compatible with SEL-2814, SEL-2886, SEL-4388, and SEL-4391.