Programmable DC Power Supply, 5kW to 75kW, 3U Chassis
Not every DC power test application needs 1800kW of scalable output — many lab and production-line requirements sit comfortably in the 5kW to 75kW range, where a compact, cost-effective platform matters more than extreme power headroom. Preen's ADG-L series covers this range specifically, with 5kW, 10kW, and 15kW single-unit power levels all housed in a compact 3U chassis rather than the larger enclosures higher-power DC supplies typically require.
Output voltage flexibility comes from two connection modes: series connection of up to 2 units extends output voltage up to 2000V (from a 0-1000V standalone maximum), while parallel connection of up to 5 units extends total power to 75kW. Three-times auto range models add a further option, trading lower maximum voltage for proportionally higher current from a single chassis — useful where a test programme's actual voltage requirement is modest but current demand is high.
Active power factor correction (PFC) raises input power factor up to 0.99, reducing reactive power draw from the mains supply — a meaningful consideration where multiple units are installed on a shared facility power feed, since poor power factor across many instruments compounds into real facility-level power quality and capacity issues. A 5-inch touch screen with a rotary knob provides direct manual control, alongside remote sensing for accurate regulation at the load and screen lock password protection to prevent accidental setting changes during unattended operation.


| Output Power Range | 5kW, 10kW and 15kW single-unit models (31 total), expandable to 75kW via parallel connection (max. 5 units) |
| Output Voltage Range | 0–30V up to 0–1000V per model; up to 0–2000V via series connection (max. 2 units) |
| Output Current | Up to 2550A via parallel connection |
| Output Mode | CV / CC / CP |
| Line Regulation | ≤ 0.03%–0.1% F.S. depending on model |
| Load Regulation | ≤ 0.1%–0.3% F.S. depending on model |
| Voltage Ripple (RMS) | ≤ 0.05%–0.3% F.S. depending on model |
| Transient Response | ≤ 5ms |
| Power Factor | ≥ 0.99 at max. power (active PFC) |
| Efficiency | ≥ 87–90% at max. power depending on model |
| Protections | OVP, OCP, OPP, OTP, Vin OV, Vin Unbalance, LDC OV (plus Remote Error & FAN Error on select models) |
| Remote Sensing | ≤ 5V compensation |
| Remote Interfaces | Standard: RS-232, RS-485, Ethernet, USB, Analog · Optional: GPIB |
| HMI | 5'' touch screen with rotary knob; adjustable voltage resolution (0.1V/1V) |
| Standout Features | Auto Range function (higher current at lower voltage, or vice versa), master/slave parallel & series connection, screen lock password, optional Reverse Current Protection Module |
| Chassis | 15kW in 3U; 30kW (parallel) in 6U |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -20°C to 70°C |
| Model | Power | Voltage | Current | |
|---|---|---|---|---|
| ADG-L-30-170 | 5kW | 30V | 170A | Enquire |
| ADG-L-40-125 | 5kW | 40V | 125A | Enquire |
| ADG-L-80-62 | 5kW | 80V | 62.5A | Enquire |
| ADG-L-80-170-5 | 5kW | 80V | 170A (Auto Range) | Enquire |
| ADG-L-115-45 | 5kW | 115V | 45A | Enquire |
| ADG-L-160-32 | 5kW | 160V | 32A | Enquire |
| ADG-L-335-15 | 5kW | 335V | 15A | Enquire |
| ADG-L-335-45-5 | 5kW | 335V | 45A (Auto Range) | Enquire |

| Model | Power | Voltage | Current | |
|---|---|---|---|---|
| ADG-L-30-340 | 10kW | 30V | 340A | Enquire |
| ADG-L-40-250 | 10kW | 40V | 250A | Enquire |
| ADG-L-80-125 | 10kW | 80V | 125A | Enquire |
| ADG-L-80-340-10 | 10kW | 80V | 340A (Auto Range) | Enquire |
| ADG-L-115-90 | 10kW | 115V | 90A | Enquire |
| ADG-L-160-63 | 10kW | 160V | 63A | Enquire |
| ADG-L-335-30 | 10kW | 335V | 30A | Enquire |
| ADG-L-335-90-10 | 10kW | 335V | 90A (Auto Range) | Enquire |
| ADG-L-500-20 | 10kW | 500V | 20A | Enquire |
| ADG-L-670-15 | 10kW | 670V | 15A | Enquire |
| ADG-L-670-45-10 | 10kW | 670V | 45A (Auto Range) | Enquire |

| Model | Power | Voltage | Current | |
|---|---|---|---|---|
| ADG-L-30-510 | 15kW | 30V | 510A | Enquire |
| ADG-L-40-375 | 15kW | 40V | 375A | Enquire |
| ADG-L-80-187 | 15kW | 80V | 187.5A | Enquire |
| ADG-L-80-510-15 | 15kW | 80V | 510A (Auto Range) | Enquire |
| ADG-L-115-135 | 15kW | 115V | 135A | Enquire |
| ADG-L-160-94 | 15kW | 160V | 94A | Enquire |
| ADG-L-335-45 | 15kW | 335V | 45A | Enquire |
| ADG-L-335-135-15 | 15kW | 335V | 135A (Auto Range) | Enquire |
| ADG-L-500-30 | 15kW | 500V | 30A | Enquire |
| ADG-L-670-23 | 15kW | 670V | 23A | Enquire |
| ADG-L-1000-15 | 15kW | 1000V | 15A | Enquire |
| ADG-L-1000-45-15 | 15kW | 1000V | 45A (Auto Range) | Enquire |