Product details
PSTB570-600-70 – Softstarter
PSTB570-600-70 is a softstarter from ABB. It handles 570 A and 600 V AC main circuits. This device reduces motor starting current and torque. It protects motors with electronic overload protection. The unit supports inside delta connection for higher power ratings.
Key Features
- Rated current: 570 A (in-line), 987 A (inside delta)
- Power rating: 315 kW (400V in-line), 540 kW (400V delta)
- Supply voltage: 208…600 V AC, 50/60 Hz
- Control voltage: 24 V DC
- Built-in overload protection (electronic)
- Current limit: 1.5…7x Ie
- Communication: FieldBusPlug (standard)
- Weight: 52 kg
Technical Specifications
- Brand: ABB
- Model: PSTB570-600-70
- Product ID: 1SFA894017R7000
- Type: Softstarter
- Main circuit voltage: 208…600 V AC
- Control voltage: 24 V DC
- Frequency: 50/60 Hz
- Rated current (in-line): 570 A
- Rated current (inside delta): 987 A
- Power (400V in-line): 315 kW
- Power (400V delta): 540 kW
- Power (500V in-line): 400 kW
- Power (500V delta): 700 kW
- Service factor: 115%
- Start capacity: 3x Ie for 15 seconds
- Ramp time: 0…120 seconds
- Initial voltage: 30…70%
- Step-down voltage: 100…30%
- Current limit: 1.5…7x Ie
- Analog outputs: 0-10 V, 0-20 mA, 4-20 mA
- Relay outputs: Run, Bypass, Fault, Overload signals
- Communication: FieldBusPlug (standard)
- Protection degree: IP00 (main terminals)
- Connection type: Bars for main circuit
- Main terminal holes: 12.5 mm diameter
- Busbar size: 40 x 6 mm
- Tightening torque: 45 N·m (main), 0.5 N·m (control)
- Dimensions: 436 x 515 x 381 mm (W x H x D)
- Weight: 52 kg (net), 64 kg (with package)
- Operating temperature: 0…+50 °C
- Storage temperature: -25…+70 °C
Installation & Mounting
- Mounting: Upright on a flat, vertical surface
- Clearance: Allow 100 mm above and below for airflow
- Wiring: Use copper bars or cables with appropriate lugs
- Control wiring: Use shielded cables for analog signals
- Configuration: Set parameters via DIP switches or FieldBus
Commissioning & Maintenance
- Setup: Adjust ramp time and current limit for your motor
- Diagnostics: Check LED indicators (Ready, Protect, Fault)
- Maintenance: Clean heatsink regularly (dust affects cooling)
- Software: Use ABB DriveWindow or FieldBus tool for advanced setup
Manager’s Insight
This ABB softstarter delivers reliable motor control for heavy loads. The inside delta connection nearly doubles the power rating. The built-in overload protection saves the cost of a separate relay. We recommend it for pumps, fans, and compressors. The 12-month warranty and fast shipping make it a solid investment.
Applications
- Pumps: centrifugal, positive displacement, submersible
- Fans: axial, centrifugal, cooling tower
- Compressors: reciprocating, screw, centrifugal
- Conveyors: belt, screw, chain driven
- Crushers and mills: heavy industrial loads
Comparison with Similar Models
- PSTB570-600-70 – 570A, 600V, 315kW/400V
- PSTB470-600-70 – 470A, lower power rating
- PSTB720-600-70 – 720A, higher current capacity
- PSTX570-600-70 – advanced model with more features
Selection Guide
- Choose PSTB570-600-70 if: your motor needs 570A or less (in-line) or 987A (delta).
- Consider this for: large motors in pumps, fans, or compressors.
- Avoid if: your voltage exceeds 600V or current exceeds 987A (delta).
- Best paired with: ABB motor protection relays and contactors.
- Warranty: 12 months from invoice date.
Shipping & Delivery
- Dispatch: 12-24 hours after order confirmation.
- Carriers: FedEx, UPS, DHL (tracking provided).
- Packaging: Sturdy carton with foam padding (64 kg gross).
Frequently Asked Questions (FAQ)
- Q: What is the maximum starting current?
- A: 3x Ie for 15 seconds (e.g., 1710A for the 570A model).
- Q: Can I use this with a 575V motor?
- A: Yes, the main circuit accepts up to 600V AC.
- Q: What is inside delta connection?
- A: It connects the softstarter inside the motor delta windings to reduce current.
- Q: Does it have a bypass contactor?
- A: No, but it has a bypass signal relay to control an external contactor.
- Q: How many starts per hour can it handle?
- A: 10 starts per hour at 3.5x Ie for 7 sec (50% ON/OFF time).
Contact Information: For inquiries, email sales@powergearx.com or call +86 18030005825 (WhatsApp).
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Original Source: https://www.powergearx.com/
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