PSU-1250 Switching Power Supply 50A, adjustable, Analog Instrument

SKU
PSU-1250
€149.00
incl. 19% VAT plus shipping
In stock, shipped in 1 to 2 days.
Small, switched power supplies with up to 28/50A.


These power supplies offer in a small case everything the radio amateur needs. The power supplies are either switched to fixed 13.8V, or to a variable output voltage between 9 and 15V. The maximum current may be up to 28A (PSU-1228, 20A continous) or 50A (PSU-1250, 40A continous). This is sufficient for all 100W transceivers. The built-in fan is temperature controlled. With little load the fan does not run at all, the PSU-12xx is absolutely quiet. Only with a longer and higher load the fan starts to run to cool the internal electronics. In cases where interferences occur, the PSU-12xx offers a control which shifts the frequency of the birdies, if required. The back-lit instrument shows (selectable) either Voltage or Current. All controls are conveniently located on the front, the 230VAC and DC connectors are on the rear. The PSU-1228 has the same front panel size and layout as the well known SX- series SWR/power meters and so fits perfectly into the ham shack. The PSU-1250 has the same design but is somewhat larger.

Compact Power Supply 50A


The PSU-1250 offers a lot of power in a small enclosure. The supply is either switched to a fixed 13.8V or to a regulatable output voltage from 9 to 15V. The maximum power load may pek up to 50A, and can stay at 40A continous load. This is absolutely sufficient for larger transceivers (200W) and accessories, or a small power amplifier.


The built-in ventilator is temperature regulated. At low loads the fan does not move at all, the power supply is completely silent. Only with longer lasting and higher loads the fan begins to turn to cool the compact electronics. To avoid the rarely occuring HF noise effects from the switching circuit a regulator can shift the frequency of the birdies.


The backlit analog meter can be switched to show the output voltage or the current. All operating controls are located on the front panel, the connections for AC and DC on the rear side.

More Information
Max. Continous Current Output (A) 40
Voltage Output (V) 13.8V, 9 - 15
Ripple (mV) < 80 mVpp @ Nominallast
Max. Current Output (A) 50
Fuses 8A
Short Description Switching Power Supply 50A
Fan No
Size W x H x D (mm) 195 x 85 x 280 mm (##bxhxt##)
Weight (kg) 2.5
Protection Measures Kurzschlußfest, Strombegrenzung 50A
Title PSU-1250 Switching Power Supply 50A, adjustable, Analog Instrument