Motorpact medium voltage motor controllers provide the most efficient means to control and protect a wide range of applications and can be configured for motor starting, transformer feeders, capacitor feeders or future spaces. In addition, its compact footprint allows easy retrofitting. The Reduced Voltage Solid State controller is a viable alternative to other types of reduced voltage starting. RVSS controllers provide smooth acceleration and much more.

Features:

• Isolated switch. Isolation of controller from power supply.
• Vacuum isolation contactor. Provides start sequence to SCR stack.
• SCR stack with I2T overload. Provides voltage ramp and advanced protection features.
• Vacuum bypass contactor. Bypass mode when motor is at full speed.
• Isolated low voltage control. Control and HMI of controller with power system.

Benefits:

• Reduced Torque Starting: Reduces mechanical slippage/damage
• Smooth Acceleration: Gradual pressurization of fluid in line and reduction of pressure surge
• Advanced Protection: Overload; Thermal Capacity; Under Current / Load Loss; Jam Protection; Phase Imbalance; Phase Reversal

Options:

• Optional soft start ramping reduces mechanical shock during motor starting or stopping. The Motorpact Reduced Voltage Soft Start (RVSS) provides smooth, stepless acceleration and controlled deceleration, decreases downtime and extends the life of the equipment.
• Optional arc resistant enclosure and compartmentalization provides the enhanced protection that customers are requiring.