This manual is the user manual for the MVC4 medium voltage solid state soft starter, which introduces the product's features and usage methods
The Motortronics MVC4 is an SCR-based controller designed for the starting, protection, and control of AC medium voltage motors. It features a Class E2 design with fiber optic connections and low voltage control circuitry, suitable for voltages between 10,000 and 13,800 VAC. The unit includes advanced motor protection features such as two-stage electronic overload curves, phase current imbalance protection, and dynamic reset capacity.
| AC Supply Voltage | 10000 – 13800 VAC +10 to – 15% |
|---|---|
| Power Circuit SCRs | 36 SCRs |
| SCR Peak Inverse Voltage Ratings | 27000V - 39000V |
| Frequency | 50 or 60Hz, +2Hz hardware selectable |
| Ambient Condition | 0° to 40°C (32° to 104°F) |
| Control Voltage | 2 or 3 wire 120VAC |
| BIL Rating | 110kV |
| Protocol | Modbus RTU |
The unit is designed for AC supply voltages ranging from 10,000 to 13,800 VAC.
The power circuit contains 36 SCRs.
The device supports Modbus RTU via RS-485, RS-422, or RS232.
The unit has a running overload capacity of 500% for 60 seconds.