SparkFun
Constant Current Power Supply 13.8V 8A
· MPN: PRT-18734
This pre-wired DC supply provides a 13.8V DC output with a constant 8A current, making it useful for LED lighting-type loads and other suitable DC power appl...
This pre-wired DC supply provides a 13.8V DC output with a constant 8A current, making it useful for LED lighting-type loads and other suitable DC power applications.
It accepts an 8-36V DC input through the red and black input leads, and provides output through the yellow and black leads. The unit is housed in a robust metal enclosure with an IP68 waterproof rating and a quoted 100,000 hour service life.
It can also be used for charging lead acid batteries, but only by users with a good understanding of the correct charging requirements and safety considerations.
Features:
- Over-voltage protection: Helps protect the supply and load from over-voltage conditions.
- Over-current protection: Helps protect against excessive current conditions.
- Short circuit protection: Helps protect the supply during short circuit faults.
- Over-temperature protection: Helps protect the supply from overheating.
Specifications:
- Input Voltage: 12V/24V DC
- Input Voltage Range: 8-36V DC
- Efficiency: 96% @ 12V in
- Output Voltage: 13.8V DC
- Output Current: 8A (Constant)
- Voltage Regulation: < 1%
- Load Regulation: < 2%
- Ripple & Noise: 156mVp-p
- Operating Temperature Range: -30°C to 80°C
- Waterproof Rating: IP68
- Dimensions: 74mm x 74mm x 32mm
- Weight: 290g
- Input Cables (Red/Black): 14AWG and 16.5cm Long
- Output Cables (Yellow/Black): 16AWG and 16.5cm Long
- Manufacturer's Warranty: 1 Year
A solid choice for knowledgeable makers and installers needing a sealed, pre-wired 13.8V constant current supply for suitable DC loads.
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
- load regulation
- Load regulation describes how much a power supply’s output voltage changes when the connected device draws more or less current. Better load regulation helps keep test circuits powered at the voltage you set, even as their current demand changes.
- over-voltage protection
- Over-voltage protection is a safety feature that shuts down or limits the circuit if the input or output voltage becomes too high. It matters because excessive voltage can damage both the power supply and the device being tested.
- Short circuit protection
- A safety feature that helps protect the device if its output or wiring is accidentally connected in a way that causes excessive current flow. This matters in automation wiring because mistakes or damaged cables can otherwise destroy the sensor or power supply.
Find this product in
Power & Batteries
Constant Current Power Supply 13.8V 8A Datasheet
Datasheet · 139.7 KB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 468.0 KB · Click any page to view full size
