button for more than 12 seconds displays the reason for the last trip (e.g., high or low voltage). Factory Reset: Holding the
To enter the setting mode, . Use the UP and DOWN keys to adjust values, then hold SET for 3 seconds again to save and exit. Default Value Adjustable Range A1 Power-on delay (reconnect time) 1s – 500s A2 Over-voltage protection value 230V – 300V (or OFF) A3 Over-voltage recovery value 225V – 295V A4 Recovery delay time (after over-voltage) 1s – 500s A5 Over-voltage protection action time 0.1s – 30s A6 Under-voltage protection value 140V – 210V (or OFF) A7 Under-voltage recovery value 145V – 215V A8 Recovery delay time (after under-voltage) 1s – 500s A9 Under-voltage protection action time 0.1s – 30s A10 Over-current protection value 1A – 63A A11 Recovery delay time (after over-current) 1s – 500s A12 Over-current protection action time 0.1s – 30s A13 Voltage calibration -9.5V to +9.5V A14 Over-current limit cycles (auto-lock) 1 – 20 times Operational Shortcuts & Indicators tomzn tovpd160ec manual better
Dual LED display shows current voltage (V) and current (A) simultaneously. button for more than 12 seconds displays the
The is an adjustable, DIN-rail mounted protection relay designed to shield single-phase electrical systems from over-voltage, under-voltage, and over-current events. While standard manuals can be sparse, this enhanced guide clarifies the 14 programmable parameters (A1–A14) and essential operational shortcuts for better device management. Core Configuration Parameters Default Value Adjustable Range A1 Power-on delay (reconnect
Some Tomzn TOVPD units have or DIP switches under a small cover:
button for more than 12 seconds displays the reason for the last trip (e.g., high or low voltage). Factory Reset: Holding the
To enter the setting mode, . Use the UP and DOWN keys to adjust values, then hold SET for 3 seconds again to save and exit. Default Value Adjustable Range A1 Power-on delay (reconnect time) 1s – 500s A2 Over-voltage protection value 230V – 300V (or OFF) A3 Over-voltage recovery value 225V – 295V A4 Recovery delay time (after over-voltage) 1s – 500s A5 Over-voltage protection action time 0.1s – 30s A6 Under-voltage protection value 140V – 210V (or OFF) A7 Under-voltage recovery value 145V – 215V A8 Recovery delay time (after under-voltage) 1s – 500s A9 Under-voltage protection action time 0.1s – 30s A10 Over-current protection value 1A – 63A A11 Recovery delay time (after over-current) 1s – 500s A12 Over-current protection action time 0.1s – 30s A13 Voltage calibration -9.5V to +9.5V A14 Over-current limit cycles (auto-lock) 1 – 20 times Operational Shortcuts & Indicators
Dual LED display shows current voltage (V) and current (A) simultaneously.
The is an adjustable, DIN-rail mounted protection relay designed to shield single-phase electrical systems from over-voltage, under-voltage, and over-current events. While standard manuals can be sparse, this enhanced guide clarifies the 14 programmable parameters (A1–A14) and essential operational shortcuts for better device management. Core Configuration Parameters
Some Tomzn TOVPD units have or DIP switches under a small cover: