General
The AVP3-100 and AVP4-100 are advanced voltage protection devices designed for three-phase systems. Key features include: rated voltage of AC3×220V (N-L1/L2/L3), wide frequency support (40-70Hz), adjustable voltage thresholds (Umax 230-300V, Umin 140-210V), auto-reclosing delay (1-600s), fast switch response (<0.2s), 5V voltage hysteresis, and overvoltage trip delay of 0.1s (reduced to 0.02s at ≥350V). These protectors ensure stable power supply by automatically disconnecting during voltage anomalies.
Technical Parameters
| Model Number | AVP3-100/AVP4-100 |
| Product name | Overvoltage and undervoltage protection |
| Supply terminals | N,L1,L2,L3 |
| Rated supply voltage | AC3*220V(N-L1/L2/L3) |
| Rated frequency | 40/50/60/70Hz |
| Umax setting range | 230-300V |
| Umin setting range | 140-210V |
| Auto-reclosing delay(Ton) | 1-600s |
| Switch delay to reserve phases | <0.2s |
| Voltage hysteresis | 5V |
| Overvoltage trip delay | 0.1s;≥350V:0.02s |
Yueqing Lovadon Electric Co., Ltd.
