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Compact Power Supply for Elecraft Radios systems including the K3S and KX3/KXPA100 combo.  The small foot print and ruggedness provides one all-purpose power supply to work in the small shack or for vacation or 2nd house use.  It allows the operator to purchase a single power supply to support expanding the radios with peripherals and accessories.

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The SS30DV is designed to supply 25 Amps continuous (up to 5 minutes) and 30 Amps surge at 14.1 VDC. It is the perfect companion supply for the Elecraft K3, K2/100, KX3 with KXPA100 and most other rigs. Cabling can be connected to either the rear, 5-way binding posts or the dual front Powerpole connectors.

The SS30DV supports all the peripherals for a K-Line (K3S, P3, KAT500) or the KX-Line (KX3/KX2, KXPA100 and PX3). 


Electrical specifications:

  • Input Range: 100-120 VAC or 200-240 VAC, 50/60Hz (Switchable)
  • Output Voltage: 14.1 VDC fixed
  • Output Amperage: 25 continuous (up to 5 minutes), 30 surge
  • Internal Protection: Thermal, over current
  • Internal Input Fuse: 6.3 Amps at 115 VAC
  • Ripple Peak-to-Peak Max. <100mVpp
  • Noise Peak-to-Peak Max. <100mVpp
  • Operating temperature rating: 0 – 50 °C
  • Storage temperature: -20 – 85 °C

Physical dimensions and materials:

  • Shipping Weight: 4.0 lbs.
  • Overall Dimensions: 6.1 x 5 x 2.5 in (154mm long, 127mm wide, 63mm tall)
  • Fan: Quiet internal cooling fan
  • Machined metal case front bezel


    •  E980262    Power Cable, 3 ft, Assembled with APP Conn. 2.1mm connector at the other end. Use this cable to connect these peripherals to the SS30DV:  KX3, PX3, KX2, K1, K2, KX1, KAT500, W1, W2

    • KPCA-F    Power Cable, 5 ft, Assembled with Anderson Power Pole connectors on one end and #12 circular ring lugs at other end. This cable is included with all new K3Ss and KXPA100s



      Q:  Why did Elecraft select the Power Werx SS30DV power supply to sell?

      A:  Elecraft found that the Power Werx SS30DV worked for power their demo booths at Hamfests for well over 3 years.  We're confident that it meets our criteria for a low-noise, small sized power supply suitable for very small shacks yet can support an entire K-Line or KX-Line of products, as our customers expand their systems.

      Q:  Does the fan run all the time?

      A:  Yes, but its speed will vary on the transmitting load.  When receiving, the fan cannot be heard.

      Q: Do I have to adjust the output voltage on the SS30DV to operate with my Elecraft gear?

      A: No.  The SS30DV is factory-adjusted to provide input voltage for Elecraft radios to meet specified RF output specs, 13.8 volts DC.

      Q:  I'd like to order the SS30DV but I live outside the US.  Can I order cables with the proper AC plug for my region?  will it work with 220/240 volt outlets?

      A:  Yes.  Please order the proper AC plug/cable from the list of cables available for the KPA500.  You can find these on the KPA500 product order page.  The SS30DV can be switched to operate world wide in 120 volt or 220/240 volt AC power distribution systems.

      SS30DV SS30DV Compact Switching Power Supply

      Accessories Quantity Price
      E980262 Power Cable, 3ft, APP to 2.1MM connector
      KPCA-F KPCA-F Power Cable