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The ABB PSTB is a high-performance softstarter designed for demanding industrial applications. It offers a comprehensive range of features and benefits for motor control and protection.
The PST(B) softstarter range is the second most advanced softstarter in ABB’s offering after the recently announced PSTX and combines application enhancing functionality with protections for both motor and load. Pre-warnings will even let you act on problems before you need to stop the motor, to avoid unnecessary downtime.
Features & Benefits
Main benefits
- Built-in motor protections keep your motor safe
- Full-text LCD display in your own language makes installation and setup simple and quick
- Supports most communication protocols with the accessory FieldBusPlug
- Torque control improves control of pumps and prolongs equipment lifetime
- Bigger sizes feature built-in bypass which reduces energy consumption during application full speed.
Main features
- Rated operational current: 30 to 1050 A (inside delta 1810 A)
- Operational voltage: 208–690 V AC
- Control supply voltage: 100–250 V, 50/60 Hz
- In-line and inside-delta connection.
Key Specifications
- Wide rated operational voltage 208–690 V AC
- Wide rated control supply voltage 100–250 V, 50/60 Hz
- Rated operational current 30 to 1050 A (Up to 1810 A inside delta)
- Both in line and inside delta connection
- Coated circuit boards available, for reliable operation even in harsh environments
- Full text display in 14 languages and 4 button keypad for easy setup and operation
- Optional external keypad, IP66
- Built-in by-pass contactor on PSTB (from 370 A) for energy saving and easy installation
- Prepared for external by-pass on PST (30–300 A)
- Torque control for excellent control of pumps
- Current limit, adjustable between 1.5–7 x I e
- Fieldbus communication using Profibus, Modbus, Devicenet or CANopen
- Dual motor overload protection with classes 10A, 10, 20 and 30
- Adaptable motor underload protection to detect pumps running dry
- Adaptable locked rotor protection to detect jammed pumps
- PTC protection to protect the motor from overheating
- Adjustable kick start to start jammed pumps
- Programmable output signal relays
- Programmable pre-warning functions
- Event log with time stamp
- Analog output showing current, voltage, power factor etc. 0–10 V, 0–20 mA, 4–20 mA
Applications:
The ABB PSTX softstarters are used in many applications, including:
- Pumps
- Fans
- Compressors
- Conveyors
ABB PSTB softstarter represents a sophisticated solution for motor control, offering a high level of functionality and protection.