What is the ABB PSTX570-600-70 Softstarter?
The ABB PSTX570-600-70 is a three-phase softstarter with a rated operational current of 570 A and an operational voltage range of 208 ... 600 V AC. It controls motor starting and stopping through voltage or torque ramps, featuring a built-in bypass for energy efficiency.
Key Technical Specifications
- Rated operational voltage: 208 ... 600 V AC
- Rated operational current (in-line): 570 A
- Rated control supply voltage: 100 ... 250 V AC
- Rated control circuit voltage: 24 V DC
- Rated frequency: 50/60 Hz
- Starting capacity: 4xIe for 10s
- Ramp time: 1 ... 120 second
- Degree of protection (main terminals): IP00
- Ambient air temperature (operation): -25 ... +60 °C
- Dimensions (W x H x D): 361 mm x 493 mm x 282 mm
These verified parameters ensure engineering-grade precision for demanding motor starting applications.
Failure Mode Analysis for Critical Motor Operations
In industrial environments, softstarter failures often stem from voltage sags, phase imbalances, or overload conditions. This unit addresses these through comprehensive protection functions including voltage sag detection, current imbalance protection, and electronic overload protection. Additionally, the limp mode allows continued operation with two-phase motor control if one set of thyristors is shorted, minimizing downtime. The built-in bypass reduces thermal stress during continuous running, extending service life.
Applications and Use Cases
This softstarter suits medium to large three-phase motors in pumps, fans, compressors, and conveyors. Its pump cleaning function prevents sediment buildup, while torque control ramps ensure smooth acceleration for high-inertia loads. The emergency/fire pump mode supports critical safety systems, and sequence start enables coordinated multi-motor starting.
Installation and Setup Considerations
Mount This unit vertically with adequate clearance for heat dissipation. Connect main circuit bars with a tightening torque of 35 N·m, and control circuit wiring using rigid 1 x 2.5 mm² conductors. The detachable full graphic display with IP66 rating allows configuration in harsh environments. For fieldbus integration, built-in Modbus RTU is available, and optional ANYBUS modules support Profinet, Profibus, Modbus TCP, Ethernet IP, and others.
Maintenance and Reliability
Periodic inspection of cooling fans and thyristor runtime measurement helps prevent unexpected failures. The event log and real-time clock aid in diagnosing intermittent issues. Operating within the specified ambient range of -25 ... +60 °C ensures reliable performance. The built-in bypass reduces energy losses, contributing to lower operational costs over the equipment lifecycle.
Contact AutoDCSTech with your exact requirements for precise matching.
Availability & Condition at AutoDCSTech
| Part Number | PSTX570-600-70 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Switzerland |
