Dold Voltage relay

Dold&Söhne Voltage Relay BA9054/010 AC25-250V

Manufacturer: Dold&Söhne
Designation: Voltage Relay UH AC230V
Type: BA9054/010 AC25-250V
Electrical connection type: Screw connection
With removable terminals: no
Single-phase undervoltage possible: yes
Three-phase undervoltage possible: no
Single-phase overvoltage possible: yes
Three-phase overvoltage possible: no
Single-phase window possible: no
Three-phase window possible: no
Includes DC undervoltage function: no
Includes DC overvoltage function: no
Includes DC window function: no
Voltage measurement range 1: 25..250 V
Type of voltage in the measurement range: AC
Rated control supply voltage Us at AC 50 Hz: 230 V
Type of voltage for actuation: AC
Response voltage value: 25..250 V
Number of contacts as changeover: 2
Width: 45 mm
Height: 75 mm
Depth: 120 mm

The relays measure the arithmetic mean of the rectified measurement voltage, with the devices calibrated for sinusoidal alternating voltages in effective value. Both the response value and the hysteresis fallback value can be set on the devices. The devices operate as overvoltage relays. They can also be used as undervoltage relays. The dependence of the hysteresis on the set value should be noted.