Product details
Product Overview
- ABB PST300-600-70 – 300 A softstarter for 208–600 V AC motors
- Control supply: 100–250 V AC, 50/60 Hz (24 V DC optional)
- Built‑in electronic overload protection with inside delta support
- Ideal for heavy fans, pumps, compressors, and conveyors
Technical Specifications
- Brand: ABB
- Model: PST300-600-70 (1SFA894014R7000)
- Rated current (Ie): 300 A in‑line / 515 A inside delta
- Rated power @400 V: 160 kW in‑line / 257 kW inside delta
- Rated power @500 V: 200 kW in‑line / 355 kW inside delta
- Voltage range: 208–600 V AC main, 100–250 V AC control
- Frequency: 50/60 Hz
- Starting capacity: 3× Ie for 15 seconds
- Current limit: 1.5–7× Ie adjustable
- Ramp time: 0–120 s (start), 1–120 s (special ramp)
- Initial voltage: 30–70 %; step‑down 100–30 %
- Analog outputs: 0–10 V, 0–20 mA, 4–20 mA
- Protection: IP00 (main terminals)
- Temperature: 0…+50 °C operation, –25…+70 °C storage
- Weight: 23 kg; dimensions 360×420×270 mm
Performance & Measurement Features
- Range: 208–600 V AC – covers global industrial voltages
- Frequency response: stable 50/60 Hz operation
- Sensitivity: precise current limit from 1.5 to 7× Ie
- Linearity: smooth voltage ramp reduces mechanical shock
- Resolution: digital settings in 1 % increments
- Ambient tolerance: operates up to 50 °C, withstands humidity
- Immunity: EMC hardened for industrial noise environments
Installation & Commissioning
- Main terminals: bar type – hole Ø10.2 mm, 20×5 mm
- Control wiring: rigid 1×2.5 mm² or 2×1.5 mm²
- Torque: main 28 N·m, control 0.5 N·m
- Standard FieldBusPlug for quick communication setup
- LED indicators: green (ready), yellow (protection), red (fault)
- Mount on DIN rail or panel – compact 360 mm width
Maintenance & Service Convenience
- Integrated overload and fault relays simplify diagnostics
- Analog outputs enable remote current monitoring
- Run, bypass, and fault signal relays are standard
- 30 starts/hour at 3.5× Ie for 7 s, 50 % duty cycle
- No external overload relay needed – fully self‑protected
Compatibility & Communication
- Works with all 3‑phase AC motors
- Inside delta connection reduces line current by ~42 %
- FieldBusPlug supports Profibus, DeviceNet, Modbus, etc.
- Control voltage: 100–250 V AC or 24 V DC
- Service factor 115 % for continuous heavy duty
Certifications & Standards
- CE marked – declaration 1SFA1‑74
- RoHS compliant (1SFC132035D0201)
- WEEE category 5 – small equipment
- Conflict minerals reporting available
- ETIM 7/8/9: EC000640 – Soft starter
Package Contents
- 1× ABB PST300‑600‑70 softstarter unit
- Mounting hardware and terminal bars
- Quick start guide (English, German, French)
- CD with full manuals and configuration tool
Warranty & Shipping
- 12‑month warranty against material and workmanship defects
- Dispatch: within 12–24 hours after order
- Carriers: FedEx, UPS, DHL – worldwide tracking
Expert Review
- “The PST300‑600‑70 delivers smooth starting with minimal harmonics. Its inside delta feature cuts cable size and contactor wear significantly. A top choice for system integrators.” – Senior Application Engineer
Manager‘s Insight
- “This softstarter offers exceptional value for 300 A applications. The integrated protection and plug‑and‑play communication reduce panel complexity. Highly recommended for OEMs and plant upgrades.” – Product Line Manager, PowergearX
Ideal Equipment & Applications
- Centrifugal and submersible pumps
- Axial and centrifugal fans
- Air compressors and screw compressors
- Conveyor belts, bucket elevators, and cranes
- Mixers, mills, and extruders
Target Industries
- Water & wastewater treatment plants
- HVAC systems for commercial buildings
- Mining, aggregates, and cement
- Food processing and beverage lines
- Automotive stamping and assembly
Frequently Asked Questions
- What is the maximum motor current this unit can handle?
300 A in‑line or 515 A inside delta. - Can I use this with a 480 V motor?
Yes, the main circuit accepts 208–600 V AC. - What is inside delta connection and why use it?
It connects the softstarter inside the motor delta windings, reducing line current by about 42 % and allowing smaller cables. - Do I need a separate overload relay?
No, the built‑in electronic overload is adjustable and fully functional. - How many starts per hour are possible?
Up to 30 starts at 3.5× Ie for 7 s with 50 % on/off time. - Can I monitor current remotely?
Yes, use the 4‑20 mA or 0‑10 V analog output. - Is a communication module included?
The FieldBusPlug is standard – just add the protocol adapter you need. - What is the service factor?
115 % – allows occasional overload without tripping.
Practical Buying Guide
- Select PST300‑600‑70 for motors up to 300 A (in‑line) or 515 A (delta).
- At 400 V, it delivers 160 kW in‑line and 257 kW inside delta.
- Inside delta reduces cable and contactor costs – a smart upgrade.
- Check control supply: 100–250 V AC or 24 V DC.
- Consider ambient temperature – above 40 °C, derate slightly.
- For harsh environments, mount in an IP54 or higher enclosure.
Contact Information
- Sales Inquiries: sales@powergearx.com
- Phone / WhatsApp: +86 18030005825
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