PSTX840-600-70 450kw 400kw ABB Soft Starter Plc Programming Controller Module
1. Main Specifications Rated Operational Voltage 208 ... 600 V AC Rated Control Circuit Voltage (Uc) 24 V DC Rated Frequency (f) 50/60 HzMain Circuit 50 / 60 Hz Current Limit Function 1.5 ... 7.5 xle Package Level 1 Depth Length/Height/Width 616 MM 800 MM 600 MM Package Level 1 Gross Weight 58.5 kg 2. Key Selling Points High-Performance Solid-State Soft Starter for Motor Starting: The PSTX840-600-70 is a premium soft starter from ABB’s PSTX series, designed for 600 V AC
1. Main Specifications
| Rated Operational Voltage | 208 ... 600 V AC |
| Rated Control Circuit Voltage (Uc) | 24 V DC |
| Rated Frequency (f) | 50/60 Hz Main Circuit 50 / 60 Hz |
| Current Limit Function | 1.5 ... 7.5 xle |
| Package Level 1 Depth Length/Height/Width |
616 MM 800 MM 600 MM |
| Package Level 1 Gross Weight | 58.5 kg |
2. Key Selling Points
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High-Performance Solid-State Soft Starter for Motor Starting:The PSTX840-600-70 is a premium soft starter from ABB’s PSTX series, designed for 600 V AC systems with a rated current of 840 A, capable of starting motors up to approximately 450 kW (600 HP)—ideal for large pumps, fans, compressors, and conveyors.
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Smooth Start-Up, Reduced Mechanical & Electrical Stress:Controls thyristor firing angle to gradually ramp up motor voltage, reducing inrush current (adjustable to 1.5–5x rated current), minimizing grid disturbances and mechanical wear.
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Integrated Bypass Contactor for High Efficiency:Built-in bypass contactor automatically switches to direct-on-line operation after start-up, bypassing the thyristors. This reduces power losses and heat generation during continuous operation, improving energy efficiency.
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Advanced Motor and Load Protection:Comprehensive protection includes overload, stall, phase loss, phase imbalance, thyristor overtemperature, start time-out, and underload (useful for pump dry-run detection)—ensuring reliable operation.
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Multiple Start/Stop Modes:Supports voltage ramp, current limit, kick start (Kick Start™), soft stop, and pump stop modes—adaptable to various load types (e.g., high inertia, sticky loads) for optimized performance.
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