Product details
Product Brief
- PSTB720-600-70 is a high-performance soft starter from ABB.
- Rated for main voltages from 208 to 600 V AC.
- Delivers 720 A continuous current (in-line connection).
- Integrated electronic overload protection ensures motor safety.
- Built for heavy-duty industrial applications.
Key Features
- High starting capacity: 3x Ie for 15 seconds.
- Inside delta connection supports up to 1247 A.
- Service factor of 115% for overload conditions.
- Adjustable initial voltage: 30–70%.
- Current limit from 1.5 to 7x Ie.
- Ramp time: 0–120 seconds.
- Green (ready), yellow (protection), red (fault) LEDs.
- Integrated bypass and fault signal relays.
- Analog outputs: 0–10 V, 0–20 mA, 4–20 mA.
Technical Specifications
- Brand: ABB
- Model: PSTB720-600-70
- Product ID: 1SFA894018R7000
- Rated operational voltage: 208 … 600 V AC
- Control supply voltage: 100 … 250 V AC, 50/60 Hz
- Rated power (in-line): 400 kW at 400 V, 500 kW at 500 V
- Inside delta power: 710 kW at 400 V, 880 kW at 500 V
- Frequency: 50/60 Hz
- Ambient temperature: 0 … +50 °C (operation), -25 … +70 °C (storage)
- Protection degree: IP00 (main terminals)
- Terminals: Bars (main), rigid 2.5 mm² (control)
- Tightening torque: 45 N·m (main), 0.5 N·m (control)
- Communication: FieldBusPlug (standard)
- Number of starts per hour: 10 at 3.5x Ie for 7 sec (50% ON/OFF)
- Weight: 55 kg
- Dimensions: 436 x 515 x 381 mm (W x H x D)
Installation & Compatibility
- Mount on a flat, vertical surface with adequate ventilation.
- Main circuit bars: hole diameter 12.5 mm, bar size 40×6 mm.
- Control circuit: rigid 1 x 2.5 mm² or 2 x 1.5 mm².
- Compatible with standard industrial motor control panels.
- Works with ABB FieldBusPlug for easy integration.
- Designed for in-line or inside delta motor connections.
Debugging & Maintenance
- LED indicators simplify status checks and fault finding.
- Analog outputs allow remote monitoring of current and voltage.
- Easy access to control terminals for quick wiring checks.
- Software-based ramp and current limit adjustments.
- Periodic visual inspection of terminals and cooling fans.
- No special tools required for routine maintenance.
Environmental & Certifications
- RoHS compliant (declaration 1SFC132035D0201).
- CE declaration available (1SFA1-76).
- Conflict minerals reporting template (CMRT) included.
- WEEE category: Large Equipment (＞50 cm).
- Operating temperature: 0 to +50 °C.
- Storage temperature: -25 to +70 °C.
- ETIM 9: EC000640 – Soft starter.
- eClass V11.0: 27370907.
Package & Logistics
- Package dimensions: 500 x 600 x 460 mm.
- Gross weight: 67 kg.
- Each package contains 1 unit.
- EAN: 7320500255667.
- Shipping: 12–24 hour dispatch via FedEx, UPS, or DHL.
- Customs tariff: 8503009999.
Warranty & Support
- 12-month warranty against manufacturing defects.
- Technical support available via email or phone.
- Fast replacement and repair services.
- Original Source: https://www.powergearx.com/
Expert Review
- “The PSTB720-600-70 offers robust starting performance for large motors.”
- “Its inside delta capability significantly reduces line current stress.”
- “The electronic overload protection is precise and reliable.”
- “Ideal for pumps, fans, compressors, and heavy conveyors.”
- “Simple commissioning and clear diagnostics save downtime.”
Manager’s Insight
- “This soft starter reduces mechanical shock, extending motor life.”
- “The 115% service factor provides extra safety margin.”
- “FieldBusPlug enables easy integration into existing automation.”
- “Cost-effective solution for high-power applications.”
- “Backed by ABB’s global service network.”
Applications
- Pumps: Centrifugal, positive displacement, and submersible.
- Fans & blowers: Axial, centrifugal, and induced draft.
- Compressors: Screw, reciprocating, and centrifugal.
- Conveyors: Belt, roller, and screw conveyors.
- Mixers & agitators: Industrial mixing equipment.
- Crushers & mills: Mining and aggregate processing.
Frequently Asked Questions (FAQ)
- Q: What is the maximum motor power this soft starter can handle?
- A: In-line: 400 kW at 400 V, 500 kW at 500 V. Inside delta: 710 kW at 400 V, 880 kW at 500 V.
- Q: Can I use it with a 600 V supply?
- A: Yes, the main circuit is rated for 208–600 V AC.
- Q: What control voltage is required?
- A: 100–250 V AC, 50/60 Hz. DC operation at 24 V is also supported.
- Q: How do I adjust the starting parameters?
- A: Use the built-in potentiometers for initial voltage, ramp time, and current limit.
- Q: Does it have built-in overload protection?
- A: Yes, electronic overload protection is standard.
- Q: How many starts per hour are allowed?
- A: Up to 10 starts per hour at 3.5x Ie for 7 sec with 50% ON/OFF time.
- Q: What communication protocols are supported?
- A: FieldBusPlug provides standard connectivity to most automation networks.
- Q: What is the ambient temperature range?
- A: Operation: 0 to +50 °C; Storage: -25 to +70 °C.
Selection Guide
- Match motor full-load current (FLC) to the soft starter’s Ie rating.
- Choose in-line connection for standard installations.
- Use inside delta for higher power or reduced line current.
- Verify control voltage compatibility (100–250 V AC or 24 V DC).
- Consider ambient temperature and cooling requirements.
- Select FieldBusPlug variant if network integration is needed.
- Ensure mounting space (436 x 515 x 381 mm) and weight (55 kg).
- Review start/stop cycles per hour for your application.
Contact Information
- For inquiries, please contact us:
- Email: sales@powergearx.com
- Phone: +86 18030005825 (WhatsApp)
Copyright © 2026 Powergear X Automation Limited. All rights reserved.
Original Source: https://www.powergearx.com/
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