Wye Delta Open Transition

PSI offers Main Lug Only, Standard Interrupt Main Breaker, and High Interrupt Main Breaker Wye-Delta Open Transition Motor Starters.
Amp Range 269-1124
Horsepower 150, 250, 300, 350, 400, 450, 500, 600, 700, 800

Main Lug Only

Wye-Delta Starter is a traditional electro-mechanical method of reducing the voltage applied to the motor during starting. This type of starter is used for large air compressors and pumps. Main Breaker High Interrupt will have a rating of 65kAIC at 480 Volts.

Standard Interrupt Main Breaker

Wye-Delta Starter is a traditional electro-mechanical method of reducing the voltage applied to the motor during starting. This type of starter is used for large air compressors and pumps. Standard Interrupt Main Breakerwill have a rating of 35 to 50kAIC at 480 Volts.
For 400HP and up please refer to “High Interrupt Main Breaker”

High Interrupt Main Breaker

Wye-Delta Starter is a traditional electro-mechanical method of reducing the voltage applied to the motor during starting. This type of starter is used for large air compressors and pumps. Main Breaker High Interrupt will have a rating of 65kAIC at 480 Volts.

This type of starter is used for large air compressors and pumps
PSI offers Main Lug Only, Standard Interrupt Main Breaker, and High Interrupt Main Breaker Wye-Delta Open Transition Motor Starters.
Amp Range 269-1124
Horsepower 150, 250, 300, 350, 400, 450, 500, 600, 700, 800