A rack-mount DC bench supply spends most of its life doing unglamorous work — burning in boards overnight, powering a production line test fixture through thousands of cycles, or sitting quietly inside a larger system as the DC rail everything else depends on. Preen's ADC series is built specifically for that role: classic 19-inch rack-mount DC power supplies sized for production-line, burn-in, and integrated-system use rather than one-off bench experiments.
Where the ADC Series Fits
Preen positions the ADC series below the high-power ADG+ and ADG-L programmable ranges, as the workhorse rack-mount option for applications that need a solid, repeatable DC source rather than fast, wide-bandwidth programmability. The three standard models cover 2kW, 4kW, and 8kW, with the 2kW and 4kW units built into a compact 2U chassis and the 8kW model stepping up to 4U — enough headroom in a standard 19-inch cabinet to stack several units alongside test fixtures, controllers, and other rack equipment without eating the whole enclosure.
Output voltage across the range spans from 0-30V up to 0-600V depending on model, which lets a single product family cover everything from low-voltage electronics burn-in to higher-voltage motor and drive testing without switching to a different platform.
Power and Voltage at a Glance
| Model Class | Power | Chassis | Output Voltage Range |
|---|---|---|---|
| ADC 2kW | 2kW | 2U | 0-30V to 0-600V |
| ADC 4kW | 4kW | 2U | 0-30V to 0-600V |
| ADC 8kW | 8kW | 4U | 0-30V to 0-600V |
Scaling Past a Single Unit: Parallel Operation
Production-line and burn-in applications frequently outgrow a single chassis, which is why the ADC series is designed to parallel. Multiple units combine into 18U, 32U, or 42U 19-inch cabinets to deliver anywhere from roughly 24kW up to 64kW from a single integrated system, without redesigning the test setup around a different, purpose-built high-power supply. That matters most in two situations: a burn-in room that needs to scale capacity as product volume grows, and an integrated system build where the DC power stage has to fit a defined rack footprint rather than sprawl across the floor.
Because the paralleled configuration is built from the same 2U/4U building blocks as a standalone unit, maintenance and sparing stay simple — a spare 2kW or 4kW module covers both the standalone deployments and the paralleled cabinet.
Choosing the Right ADC Configuration
For most production and burn-in applications, the sizing question comes down to three things: the voltage the unit under test needs, the total power draw across however many test positions run in parallel, and how much rack space is actually available. A single 2kW or 4kW unit in 2U covers the majority of board- and component-level burn-in work. Where the load is a larger subassembly, a motor, or a multi-position fixture, the 8kW 4U model or a paralleled cabinet configuration keeps the power density manageable without stacking an unreasonable number of standalone chassis.
It's also worth checking the ADC series against Preen's higher-power ADG+ and ADG-L programmable DC ranges before committing — if the application needs fast transient response, wide auto-ranging, or programmability beyond a stable production-line DC rail, one of those platforms may be the better fit. The ADC series earns its place specifically where the requirement is a dependable, rack-mount DC source that scales cleanly with production volume.