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Rectangular grey metal power supply unit with analog meter and front output terminals

Tekpower

Tekpower TP30SWI 30 A 13.8 V Switching Power Supply with Noise Offset

SKU CH-HEC3-ZDBVE

A 13.8 V, 30 A switching supply with analog meters, front snap-in output and a noise-offset knob for clean radio power

  • Professional 13.8 V DC output powers ham and CB radios reliably
  • 30 A maximum current handles amplifiers and high-draw accessories
  • Noise offset knob eliminates switching interference for clear communication
  • Dual outputs include rear main terminal and front snap-in up to 3 A
  • Compact 7.5 × 2.8 × 7.5 in design fits tight bench space

Purpose-built DC supply

The Tekpower TP30SWI delivers a fixed 13.8 V output at up to 30 A, making it suitable for ham and CB radios as well as amplifiers. It runs from a 110 V 60 Hz mains input and includes a front-panel snap-in connector rated for 3 A. The unit weighs 6 lb and measures 7.5 by 2.8 by 7.5 inches.

Capacity and headroom

At full rated load the ripple stays below 80 mV peak-to-peak, and the noise offset knob can further suppress switching artefacts for clean communication use. The 3 A front output is intended for lighter accessories; drawing more than 30 A from the main terminals will exceed the design limit. The supply is not suited for applications requiring adjustable voltage or higher current than 30 A.

Bundled items

A standard power cord and a user manual are included in the box. No additional cables, mounting hardware or software are provided, so any rack integration or extended wiring must be sourced separately. The 110 V 8 A fuse is factory-fitted for input protection.

Highlights

  • Professional 13.8 V DC output powers ham and CB radios reliably
  • 30 A maximum current handles amplifiers and high-draw accessories
  • Noise offset knob eliminates switching interference for clear communication
  • Dual outputs include rear main terminal and front snap-in up to 3 A
  • Compact 7.5 × 2.8 × 7.5 in design fits tight bench space

Specifications

No published specifications for this item yet.

Questions about this item

Will the 13.8 V 30 A main output run my older ham radio that draws high current on transmit?

The main DC output delivers 13.8 V at up to 30 A maximum, so it can supply the current your radio needs on transmit.

How can I confirm the unit is delivering clean power after I connect it?

Use the analog meter to verify the output sits at 13.8 V under load; ripple is specified below 80 mVp-p at rated load, and the noise-offset knob lets you minimise any audible switching noise.

What comes in the box and is anything else required to start using it?

The package includes the TP30SWI power supply, a power cord for the 110 V 60 Hz input, and a user manual; no additional accessories are needed for basic operation.

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