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ABS Tagan ITZ Series 1300W Power Supply Review

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Specifications

The ABS Tagan ITZ1300 power supply is rated for a combined, maximum output power of up to 1,300 watts.  Unfortunately there is no mention of the operating temperature, which makes me a little nervous.  The PSU includes universal AC line input (automatically adjusts the AC line voltage) and active PFC, which makes the unit more environmentally friendly to the local power grid.  The ITZ1300 PSU claims to be 80PLUS certified (although it wasn’t listed the last time I checked) and was designed to be more than 80% efficient over a wide range of loads. 


Tagan claims there are six +12V rails but goes on to state the ITZ1300 power supply incorporates a Turbo Mode feature that can automatically combine all six outputs into one.  OK, which is it?  During testing the ITZ1300 appeared to my load testers as having one big +12V rail.  If the six +12V rails are independently current limited, the settings are way above 20A; and how do you know when the Turbo feature kicks in?


ITZ1300 Specifications (Courtesy of ABS website)


Here we see the 3-year warranty is broken down to 3-years parts/1-year labor.  That’s pretty lame for a PSU that claims “to outlast and outperform any other PSU in the market today”.

Also notice the AC Input specification shows the ITZ1300 pulling up to 18A when operating on 115 VAC.  Keep in mind the majority of North American residential electrical circuits have a maximum capacity of 15 Amps for 115VAC, 60Hz circuits.  Yes, 20A circuits are also used, but are typically limited to basement/garage areas or specific heavy loads.  At maximum load (1,300W DC output), the ITZ1300 power supply will pull approximately 16A from an 115VAC circuit (assuming 79% efficiency and PF~1).  This is over the rated capacity of a 15A circuit and would certainly pop the breaker.  In reality though, most users will never push this power supply to its maximum rated capacity so a 15A circuit should be OK (just don’t expect it to power much else).

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