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.
Provide +5 Vdc and ±10 Vdc power for communications devices and accessories, from 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.
Power SEL-3021 Serial Encrypting Transceivers to prevent unauthorized data access or control via serial links.
Power SEL-3010 Event Messenger for voice notification of field personnel and to backup SCADA functions.
Power SEL-2814 Fiber-Optic Transceivers and SEL-2886 EIA 232/485 Converters when applied with devices that cannot provide power through their serial ports.
Provide +5 Vdc and ±10 Vdc power to other communications or instrumentation devices. SEL provides cables 1.82 meters long (6 feet) with 2.5 mm or 0.7 mm power plugs.
1.82 meter (6 feet) cable with 2.5 mm plug, compatible with 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
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From the Product Configuration page, configure your product or enter your part number via the Universal Part Number Reverse Lookup. Then, download custom .dwg or .pdf files, specific to your product.
You may also go directly to the Product Configuration page to make a product selection.