6303DS
Powerbox 6303DS Triple-Output DC Power Supply, 2 x 0-30 V / 3 A + 5 V / 5 A (built by Topward)
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About the 6303DS
The 6303DS is a triple-output laboratory DC power supply sold under the Powerbox brand. The manufacturer's label underneath names Topward Electric Instruments Co., Ltd. of Taiwan as the maker, and the front panel matches Topward's 6303D model.
It has two adjustable outputs marked master and slave, each with its own voltage and current knobs and CV/CC lamps, plus a fixed 5 V / 5 A output. Four digital displays show the voltage and current of the two adjustable outputs at the same time. A mode switch selects independent, series or parallel operation. In Topward's 6303D specification, series mode gives one supply of twice the rated voltage (or a dual-polarity tracking supply), and parallel mode gives twice the rated current.
Typical uses are powering analogue circuits that need positive and negative rails together with a 5 V logic supply, and general bench work.
Frequently asked questions
Who actually made the Powerbox 6303DS?
The manufacturer's label underneath names Topward Electric Instruments of Taiwan; Powerbox is the brand on the front. The front panel layout matches Topward's 6303D triple-output supply.
Can the two 30 V outputs be combined?
Yes. The front-panel mode switch selects independent, series or parallel operation. Topward specifies series mode as up to twice the rated voltage (or a +/- tracking supply) and parallel mode as twice the rated current.
Is the 5 V output adjustable?
No. It is a fixed 5 V output rated at 5 A.
Documents
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Topward 6000 series DC power supply specifications, incl. 6303D (reseller copy, TestMart)
Datasheet · English · www.testmart.com
Specifications
| Displays | Four digital displays (voltage and current of both adjustable outputs) |
| Fixed output | 5 V / 5 A |
| Operating modes | Independent, series (tracking) or parallel, selected on the front panel |
| Regulation modes | Constant voltage / constant current per adjustable output, with CV/CC lamps |
| Adjustable outputs | 2 x 0-30 V / 0-3 A (master and slave) |
| Overload indicator | Yes (front panel) |
| AC input (nameplate) | 230 V AC, 2.5 A, 50 Hz |
| Manufacturer (nameplate) | Topward Electric Instruments Co., Ltd., Taiwan |
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