ABB PSTB470-600-70 Softstarter – 470A, 250kW, FieldBusPlug

Product Introduction

• PSTB470-600-70 is a high-performance softstarter from ABB.
• It handles 470 A main circuit current (208‑600 V AC).
• Control supply: 100‑250 V AC or 24 V DC.
• Built‑in electronic overload protection and bypass relays.
• Ideal for pumps, fans, compressors, and heavy conveyors.

Key Technical Data

• Brand: ABB
• Model: PSTB470-600-70
• Series: PSTB
• Rated operational voltage: 208‑600 V AC (50/60 Hz)
• Rated control supply: 100‑250 V AC / 24 V DC
• Rated operational current (Ie): 470 A (in‑line)
• Inside delta current: 814 A
• Motor power (in‑line): 250 kW @ 400 V, 315 kW @ 500 V
• Inside delta power: 450 kW @ 400 V, 600 kW @ 500 V
• Service factor: 115 %
• 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
• LED signals: Ready (green), Protection (yellow), Fault (red)
• Starts per hour: 10 (at 3.5×Ie, 7 s ON/OFF)
• Communication: FieldBusPlug (standard)

Environmental & Tolerance

• Ambient temperature (operation): 0 … +50 °C
• Storage temperature: -25 … +70 °C
• Protection degree: IP00 (main terminals)
• Resistance: built‑in overload and fault relays

Installation & Connectivity

• Main terminals: Bars with 10.5 mm holes (25×6 mm)
• Control circuit: rigid 1×2.5 mm² or 2×1.5 mm²
• Supply circuit: rigid 1×2.5 mm²
• Tightening torque: Main 35 N·m / Control 0.5 N·m
• Mounting: Panel mount, vertical orientation recommended

Maintenance & Diagnostics

• LED indicators show ready, protection, and fault status.
• Relay outputs: run, bypass, fault, and overload signals.
• Analog outputs simplify connection to PLC or SCADA.
• FieldBusPlug enables quick communication setup.

Compatibility

• Works with standard 3‑phase induction motors.
• Supports in‑line or inside delta connection.
• Compatible with 50/60 Hz mains.
• Control voltage: 100‑250 V AC or 24 V DC.

Certifications & Standards

• CE declaration: 1SFA1-76
• RoHS compliant (1SFC132035D0201)
• ETIM 9: EC000640 – Soft starter
• eClass V11.0: 27370907
• WEEE: Business‑to‑Business, category 5

Package Contents

• 1 × PSTB470-600-70 softstarter
• Mounting hardware and terminal bars
• Quick start guide (digital download)
• Certificate of conformity

Warranty & Shipping

• 12‑month warranty against manufacturing defects.
• 12‑24 hour dispatch on business days.
• Shipping carriers: FedEx, UPS, DHL.
• Tracking number provided within 24 hours.

Expert Review

• Manager’s Insight: “The PSTB470 offers robust starting performance with simple parameter setting. Its built‑in overload protection saves panel space and reduces external components. The inside‑delta wiring boosts power output without increasing frame size – a smart choice for retrofit projects.”

Applications

• Centrifugal pumps and fans
• Air compressors and screw chillers
• Belt conveyors and crushers
• Mixers, agitators, and extruders
• Any heavy‑duty motor starting application

Frequently Asked Questions

• What is the maximum motor power?
  In‑line: 250 kW @ 400 V; inside delta: 450 kW @ 400 V.
• Can I use it with a 600 V supply?
  Yes, rated for 208‑600 V AC.
• How do I select in‑line vs. inside delta?
  Inside delta reduces current per phase and increases power output. Choose based on motor winding access.
• Does it support external communication?
  Yes, via FieldBusPlug (standard).
• What happens if the control voltage drops?
  The unit stops safely; fault LED turns red.
• Can I adjust the current limit?
  Yes, from 1.5 to 7 × Ie.
• Is the overload protection adjustable?
  Yes, electronic overload with thermal memory.
• What is the ambient temperature limit?
  Operation: 0‑50 °C; storage: -25‑70 °C.

Selection Guide

• Check motor full‑load current (FLC) – choose Ie ≥ FLC.
• For high starting torque, use inside‑delta connection.
• Verify control supply voltage (AC or DC) matches your system.
• Consider communication needs – FieldBusPlug is ready.
• Account for ambient temperature and enclosure cooling.

For inquiries: sales@powergearx.com | +86 18030005825

Copyright © 2026 Powergear X Automation Limited. All rights reserved.

Original Source: https://www.powergearx.com/