Product Overview
28VDC 150mA Encapsulated Linear Power Supply with Screw Terminals
Condition
Used condition. Sold each. Visual inspection confirms intact grey encapsulated housing and clean screw terminals. Markings legible: Acopian MODEL 28EB15. Evaluation: Visual inspection only. Function testing not performed.
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Product Overview
Built for low-noise instrumentation and industrial control circuits, this Acopian 28EB15 linear AC-to-DC power module converts 105 to 125 VAC line input into a regulated 28 VDC output at 0.15 A (150 mA). Housed in an EB-10 encapsulated case with a five-position screw terminal strip, the unit provides clean DC excitation with 1 mV RMS ripple. Four threaded baseplate inserts allow direct mounting to chassis plates or equipment subpanels.
Key Features
- Linear regulated AC-to-DC power module in an encapsulated EB-10 case
- Nominal 28 VDC output delivering up to 0.15 A (150 mA) continuous current
- Input operating range of 105 to 125 VAC at 47 to 420 Hz
- Low output ripple rated at 1 mV RMS for sensitive analog circuits
- Tight voltage regulation of ±0.05% line and ±0.1% load
- Five-position top barrier strip with screw terminals labeled AC, AC, +OUT, T/C, and -OUT
- Four threaded base inserts for secure subpanel or chassis mounting
- cURus recognized and CE compliance markings
Applications
- Powering 28V relays, solenoids, and indicator lamps in legacy machinery panels
- Supplying low-noise DC excitation voltage to instrumentation sensors and signal conditioners
- Retrofitting or replacing failing power modules in vintage industrial test fixtures
- Benchtop breadboarding and prototyping of 28V avionics or analog audio circuits
Frequently Asked Questions
What input voltage does this power module accept?
The module operates on standard 105 to 125 VAC single-phase line power across a frequency range of 47 to 420 Hz.
What is the purpose of the T/C terminal?
The T/C terminal is a temperature-compensated trimming connection point specified in Acopian EB-series wiring diagrams for output voltage adjustment.
What mounting provisions are built into the module?
The bottom of the enclosure features four threaded brass inserts at the corners for direct screw mounting through a chassis or mounting plate.
What condition is this module in, and has it been tested?
This is a used surplus power module sold as-is for bench, repair, or system integration. Evaluation is visual inspection only; electrical load testing has not been performed.
The price per piece steps down with quantity, and the price-break table on this page shows each step.
Clean linear power never goes out of style when an analog circuit demands silence from its rails. Bolt it down, wire the terminals, and let your 28-volt system get back to work.
