When using the Optimum voltage stabilizers, the following will be ensured: • automatic network shutdown when the input voltage increases to 500 volts; • protection against short circuits and long-term overload at the output; • display of output and input voltage values; • indication of an error code in a shutdown situation; • elimination of the risk of damage to switching power supplies during a short-term network failure by disconnecting them; • thermal protection of the autotransformer. Specifications: • Power: 27 kVA • Output voltage stabilization accuracy: ±% 4.5 • Number of automatic adjustment stages: 12 • Operating range of input line voltages: 285 ÷ 520 • Operating range of output line voltages: 365 ÷ 397 V • Maximum range of input line voltages: 105 ÷ 470 V • Hour of response to emergency voltage change: up to 20 ms • Thermal protection response temperature: 105 ° C • Dimensions: 310 × 430 × 950 • Weight: 70