PSTB840-600-70
| Parameter | Specification |
|---|---|
| Model Number | PSTB840-600-70 |
| ABB Material Code | 1SFA894019R7000 (Standard Unit); 1SFA894019R7020 (Conformal Coated Version, PSTB840-600-70T) |
| Product Type | PSTB Series Built-in Bypass Intelligent Soft Starter |
| Country of Origin | Västerås, Sweden (ABB Control Products SE-72161) |
| Applicable Standards | IEC 60947-4-2, UL 508; Compliant with CCC, CE, UKCA, RoHS |
| Rated Continuous Current (Inline External Connection) | 840 A (Long-term Full Load Operating Current) |
| Rated Current (Delta Internal Connection) | 1455 A (For Optimized Installation in Motor Delta Winding Circuit) |
| Main Circuit Rated Voltage | 208–600 V AC 3-Phase, 50/60Hz (IEC Marked Ue 500V; UL Marked Ue 600V) |
| Control Supply Voltage | 100–250 V AC, 50/60Hz (For Operator Panel and Main Control Board) |
| Rated Motor Power Compatibility (400V, Inline) | 450 kW (Standard Operating Condition) |
| Rated Motor Power Compatibility (500V, Inline) | 600 kW (Medium Voltage Operating Condition) |
| Rated Motor Power Compatibility (600V, Inline) | 720 kW (High Voltage Operating Condition) |
| Built-in Bypass Contactor | Model AF750, AC-3 Rated 750A; Automatically Bypasses Thyristors After Startup to Reduce Standby Loss |
| Short Time Overload Capability | 4×Ie for 10s (Heavy Duty Standard Startup Curve) |
| Initial Start Voltage | 10% ~ 99% Ue (Factory Default: 30% Ue) |
| Soft Start Ramp Time | 0.5 ~ 120 s (Factory Default: 10 s) |
| Soft Stop Ramp Time | 0.5 ~ 120 s (Factory Default: 10 s) |
| Current Limit Multiplier for Startup | 1.5 ~ 7 × Ie (Factory Default: 3 × Ie) |
| Kick Start Voltage | 0 ~ 30% Ue Short-term Boost (Factory Default: Disabled, For Heavy Duty Locked Rotor Loads) |
| Pump Torque Control (Water Hammer Prevention) | 0 ~ 100% Torque Continuously Adjustable (Factory Default: Disabled) |
| Jog Mode | 0 ~ 30% Constant Torque Low Speed Output (Factory Default: Disabled) |
| Electronic Overload Protection | Class 10A/10/20/30 Selectable Thermal Trip Curve (Integrated EOL Protection) |
| Overcurrent/Short Circuit Protection | Current Limit Lock + Instantaneous Trip (Real-time 3-Phase Current Monitoring) |
| Phase Loss/Phase Unbalance Protection | Alarm and Shutdown When Phase Current Difference > 30% (Real-time 3-Phase Current Detection) |
| Thyristor Heatsink Overheat Protection | Derating at >85℃, Fault Shutdown at >105℃ (Built-in Temperature Sensor) |
| Bypass Contactor Fault Detection | Contact Adhesion/Open Circuit Monitoring and Alarm (Bypass Circuit Self-check) |
| Motor PTC Thermistor Protection | Supports External Motor Winding Temperature Probe (Standard Integrated Interface) |
| Motor Underload Protection | Customizable Underload Current Threshold (For Pump Dry Run Detection) |
| Locked Rotor Protection | Fault Alarm for Long-term High Current Lock (Suitable for Conveyor, Crusher Loads) |
| Control Supply Under-Voltage/Loss Protection | Warning at Us <85V, Main Circuit Disconnection at Complete Power Loss (Continuous Control Loop Monitoring) |
| Digital Inputs (DI) | 6 Channels of Passive Dry Contacts (Start, Stop, Reset, External Fault, Jog, Spare) |
| Programmable Relay Outputs (DO) | 3 Channels of Normally Open Contacts, AC250V 8A Capacity (Running, Bypass Closed, General Fault Signals) |
| Analog Output | 4–20mA/0–10V Selectable (Real-time Output of Motor Operating Current) |
| Standard Communication | Built-in Modbus RTU (RS485) (Standard, No Additional Options Required) |
| Optional Communication Modules | Profibus DP, DeviceNet, CANopen, Modbus TCP (Separate FieldBusPlug Option Required) |
| Operator Panel | Standard Backlit Multi-language LCD Local Panel (Fault Code, Real-time Parameter Display; Optional IP66 Remote Handheld Panel) |
| Operating Ambient Temperature | 0℃ ~ +40℃ for Full Load 840A; Derating Required for 40~50℃ (Full Operating Range 0~50℃) |
| Storage/Transport Temperature | -25℃ ~ +70℃ (ABB Factory Standard for Warehousing and Transportation) |
| Relative Humidity | 5%–95%RH, No Condensation, No Corrosive Gases (Non-condensing Environment) |
| Altitude Derating Standard | For Altitude >1000m, Rated Current Derates 0.5% for Every 100m Increase (Mandatory Derating for High Altitude Installation) |
| Cooling Method | Built-in Forced Air Cooling Fan (Fan Fault with Built-in Alarm Function) |
| Protection Rating | Main Unit IP00; IP20 with Optional Cabinet Protection Cover (Only for Installation in Control Cabinet) |
| Main Circuit Terminal Tightening Torque | 45 N·m |
| Control Circuit Terminal Tightening Torque | 0.5 N·m |
| Installation Method | Vertical Wall Mounting, Inverted/Horizontal Flat Installation Prohibited |
| Optional Accessories | IP20 Cabinet Dust Protection Kit, dv/dt Output Reactor, PTC Motor Temperature Measurement Module, Remote Operator Panel Extension Kit, Communication Bus Adapter |
| Certifications | CE, CCC, UKCA, UL US (All Marked on Nameplate) |









