ABB PSTX720-600-70 Softstarter 720A 600V | Modbus | PowergearX

Product Overview

• PSTX720-600-70 – advanced softstarter from ABB.
• Rated 720 A in-line, 208‑600 V AC main circuit.
• Control supply: 100‑250 V AC, 50/60 Hz.
• Built‑in bypass for energy savings and easy installation.
• Full graphic display (IP66, outdoor rated) for simple setup.
• Supports torque or voltage ramp soft start/stop.

Key Technical Data (Tree View)

• Electrical ratings
  • Voltage: 208‑600 V AC (main)
  • Control: 100‑250 V AC, 24 V DC internal
  • Frequency: 50/60 Hz
  • In‑line power: 400 kW @400 V, 500 kW @500 V
  • Inside delta power: 710 kW @400 V, 880 kW @500 V
  • In‑line current: 720 A
  • Inside delta current: 1247 A
  • Starting capacity: 4x Ie for 10 s
  • Current limit: 1.5‑7.5 x Ie
• Control & protection
  • Ramp time: 1‑120 s (start/stop)
  • Initial voltage: 10‑99%
  • Step‑down: 100‑10%
  • Overload protection: electronic, built‑in
  • Protection functions: 24+ types (phase loss, earth fault, etc.)
  • Warnings: imbalance, underload, overvoltage, etc.
• Communication & I/O
  • Fieldbus: Modbus RTU (standard), plus ANYBUS for Profinet, Ethernet/IP, etc.
  • Analog outputs: 0‑10 V, 0‑20 mA, 4‑20 mA
  • Relay outputs: Run, Bypass, Fault, Overload
  • Digital inputs: 3 programmable + hardwire start/stop/reset
• Physical data
  • Dimensions (W×H×D): 435×493×369 mm
  • Net weight: 46.5 kg
  • Gross weight: 58.5 kg
  • Protection: IP00 (main terminals)
  • Ambient operation: -25 to +60 °C
  • Storage: -40 to +70 °C

Installation & Commissioning

• Mounting
  • Use main circuit bars (hole Ø12.5 mm).
  • Control/supply wires: rigid 2.5 mm².
  • Torque: main 45 N·m, control 0.5 N·m.
• Setup
  • Detachable graphic display – intuitive menu.
  • Auto phase sequence detection.
  • Keypad password for security.
• Maintenance
  • Event log and diagnostics for fast troubleshooting.
  • Fan warning and thyristor runtime measurement.

Compatibility & Certifications

• Standards
  • CE, CCC, CQC, DNV certified.
  • RoHS, REACH, TSCA compliant.
  • ETIM 9: EC000640; eClass V11.0: 27370907.
• Fieldbus flexibility
  • Modbus RTU, TCP; Ethernet/IP; Profinet; DeviceNet; CANopen; BACnet.
  • ANYBUS modules for other protocols.

Package & Logistics

• Box content: 1 unit PSTX720-600-70.
• Includes quick start guide and installation manual.
• Dimensions (box): 600×616×800 mm.
• Shipping: 12‑24 hours dispatch via FedEx, UPS, or DHL.
• Warranty: 12 months from purchase date.

Expert Review – Manager’s Insight

• “PSTX720 offers unmatched flexibility with torque control and 24+ protections.”
• “Built‑in bypass and Modbus RTU make it a plug‑and‑play solution for most plants.”
• “Its wide temperature range (-25 to +60 °C) suits harsh environments.”
• “Ideal for frequent start/stop cycles – the 4x Ie capacity handles high inertia loads.”

Applications & Suitable Equipment

• Pumps: centrifugal, submersible, and fire pumps.
• Fans & blowers: large HVAC, industrial ventilation.
• Compressors: screw, reciprocating, and centrifugal.
• Conveyors: belt, roller, and heavy‑duty material handling.
• Mixers, crushers, mills: high‑torque, high‑inertia loads.
• Emergency mode: fire pumps and critical processes.

Frequently Asked Questions (FAQ)

• Q: What is the maximum motor power for inside‑delta connection?

  A: 710 kW at 400 V, 880 kW at 500 V.

• Q: Can I use this softstarter with a 600 V system?

  A: Yes, the main circuit is rated up to 600 V AC.

• Q: Does it support emergency/fire pump mode?

  A: Yes, this function is built‑in as standard.

• Q: How do I connect to a Profibus network?

  A: Use the ANYBUS module (optional) for Profibus.

• Q: What is the recommended ambient temperature?

  A: Operation -25 to +60 °C; storage -40 to +70 °C.

• Expert tip: For high starting torque, use “kick start” and torque control.
• Selection guide: Choose in‑line for standard motors; inside‑delta for higher power and reduced line current.

Compare with Similar Models

• PSTB1050-600-70 – 1050 A, 208‑600 V, 560 kW @400 V.
• PSTX570-600-70 – 570 A, 208‑600 V, compact version.
• PSTX470-600-70 – 470 A, ideal for medium motors.

Contact & Order Information

• Email: sales@powergearx.com
• WhatsApp: +86 18030005825
• Order today – stock available for immediate dispatch.

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