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ABB PSTX Soft Starter
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ABB PSTX Soft Starter

Manufacturer: ABB
Model: PSTX Soft Starter
Power Range: 7.5-1250kW (10-1675hp)
Supply Voltage: 208-690V AC (3-phase)
Protection Rating: IP66
Application: Industrial motor control

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Product Description

The ABB PSTX Soft Starter is an advanced solution for controlling three-phase asynchronous motors, ranging from 7.5kW to 1250kW (10hp to 1675hp) at 40°C. Operating across 208-690V AC (3-phase), it features three-phase control with torque and voltage ramp options, a built-in bypass, and a detachable full graphic display with IP66 rating. Ideal for pumps, fans, and compressors in industries like manufacturing and water treatment, it offers extensive protection functions, including overload and phase imbalance, and supports communication via Modbus RTU and optional fieldbus protocols.

Standard Features

  • Power Range: 7.5-1250kW (10-1675hp)

  • Voltage Compatibility: 208-690V AC (3-phase)

  • Protection: IP66, built-in bypass

  • Safety: Overload and phase imbalance protection

  • Communication: Modbus RTU, optional fieldbus

  • Efficiency: Torque and voltage ramp control

  • Durability: Operates up to 60°C with derating

Technical Specifications

ModelRated Power (kW/hp)Supply VoltageContinuous Output Current (A)Control Voltage
PSTX30-600-70 400V7.5-15kW / 10-20hp208-600V30A100-250V AC
PSTX60-600-70 400V15-30kW / 20-40hp208-600V60A100-250V AC
PSTX142-600-70 400V37-75kW / 50-100hp208-600V142A100-250V AC
PSTX300-600-70 400V90-160kW / 120-215hp208-600V300A100-250V AC
PSTX720-600-70 400V200-355kW / 270-475hp208-600V720A100-250V AC
PSTX1250-600-70 400V315-560kW / 420-750hp208-600V1250A100-250V AC
PSTX37-690-70 400V11-22kW / 15-30hp208-690V37A100-250V AC
PSTX570-690-70 400V160-250kW / 215-335hp208-690V570A100-250V AC
PSTX1250-690-70 400V315-560kW / 420-750hp208-690V1250A100-250V AC
PSTX30-690-70 500V7.5-18.5kW / 10-25hp208-690V30A100-250V AC
PSTX1250-690-70 500V315-630kW / 420-845hp208-690V1250A100-250V AC
PSTX30-690-70 690V7.5-25kW / 10-35hp208-690V30A100-250V AC
PSTX470-690-70 690V132-250kW / 175-335hp208-690V470A100-250V AC
PSTX1250-690-70 690V315-630kW / 420-845hp208-690V1250A100-250V AC

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