Line-R LE1200 Auto Voltage Regulator

Anonymous user · ‎2021-06-28

I have the LE1200 voltage switch set at 120V. If I measure 117.5VAC at the wall I also measure 117.5VAC from the LE1200. I thought the LE1200 is supposed to output 120VAC. I got this because I thought a voltage regulator would keep my AC at a steady 120V. Is this considered "normal" operating range?

Thanks!

voidstar_apc · ‎2021-06-28

Hi Jimme,

The LE1200 will only intervene when the input voltage leaves an acceptable voltage window. Intervention means boosting or trimming the input voltage by a fixed percentage to keep the output within the acceptable window (but not exactly 120V). You can find specifications here and the manual here.

The manual says regulation is +6% to -12%. At 120V, that corresponds to an acceptable output range of 106V-127V. This is also the default acceptable output range on the SmartUPS UPSes.

See Answer In Context

voidstar_apc · ‎2021-06-28

Hi Jimme,

The LE1200 will only intervene when the input voltage leaves an acceptable voltage window. Intervention means boosting or trimming the input voltage by a fixed percentage to keep the output within the acceptable window (but not exactly 120V). You can find specifications here and the manual here.

The manual says regulation is +6% to -12%. At 120V, that corresponds to an acceptable output range of 106V-127V. This is also the default acceptable output range on the SmartUPS UPSes.