Low Voltage VFDs-S4 Series
Low Voltage VFDs - S4 Series
NEMA 4X WASHDOWN drives for severe environments.
Benshaw S4 Series sensorless vector drives, 100 HP and below, are designed for high pressure washdown applications, and are built to withstand the harshest industrial environments.
S4 Series drives feature a rugged polycarbonate enclosure that exceeds NEMA 1, 12, 4 and 4X standards, with double labyrinth seals that keep dust, dirt, oil and water from entering the drive at pressures up to 1,000 psi.
230V and 460V S4 Series drive models are web stocked for immediate shipment. 600 V models are also available.
Standard Duty Power Rating: The Standard Duty rating provides overload protection at 120% current for 60 seconds.
Heavy Duty Power Rating: The Heavy Duty rating provides a more robust power section for loads requiring higher starting torque and higher peak overloads of 150% for 60 seconds.
Integrated Software: Regenerative software is included to eliminate regen energy on over-hauling loads. Sequencer software is also included as standard.
PID Control: S4 drives feature an integrated PID control algorithm to regulate pressure, temperature or flow. PID process variables can be set in “real” values, eliminating the need for confusing conversions.
Dynamic Braking Transistor and Resistor: S4 drives include as standard a dynamic braking transistor and resistor to decrease deceleration times and eliminate regenerative energy. An optional external resistor can be added for even faster stopping times.
