300أ, 600V, 3-phase integrated bypass soft starter from ABB’s PSTX series, providing smooth motor starting and stopping as well as comprehensive motor protection
المعلمات الرئيسية: Rated current 300A (AC-53b), rated voltage 208–600V AC, control voltage 100–240V AC, بروتوكولات الاتصال: مودبوس, EtherNet/IP, BACnet
الوظائف الأساسية: Voltage ramp / torque control start, الحد الحالي (معيار / dual / ramp), soft stop, integrated bypass contactor, full-featured motor protection
الشهادات: يتوافق مع IEC/EN 60947-4-2, أول 508, CSA C22.2 No. 14, م, سي سي سي
- Model Number Explanation
| شفرة | وصف |
| بي اس تي اكس | ABB advanced smart soft starter series |
| 300 | Rated operational current: 300أ (continuous current under AC‑53b) |
| 600 | تصنيف الجهد التشغيلي: 600V (applicable range: 208–600V AC) |
| 70 | Control voltage range: 100–240V AC (universal for 50/60Hz) |
- Complete Technical Specifications
| فئة | Details |
| Electrical | • Rated operational current (AC‑53b): 300أ |
| • Rated operational voltage (إي): 208–600V AC | |
| • Phase: 3 | |
| • Control voltage (Us): 100–240V AC (50/60هرتز) | |
| • Compatible power: 160كيلوواط (400V), 200HP (460V) | |
| • Starting method: Soft start/stop with integrated bypass | |
| • Breaking capacity: 50ال (600V) | |
| • Overload capacity: 1.1×In (continuous at 40°C) | |
| • Starting current limit: 3 modes (معيار / dual / ramp), up to 3.5×In | |
| ميكانيكية & Environmental | • Ingress protection: IP00 |
| • Mounting: DIN rail / bolt mounting | |
| • Operating temperature: ‑25°C to +60°C | |
| • Storage temperature: ‑40°C to +80°C | |
| • Relative humidity: 5–95% (non‑condensing) | |
| • Dimensions (العرض × الارتفاع × العمق): 250×368×190mm | |
| • Weight: تقريبا. 12كجم | |
| سمات | • 3‑phase fully controlled thyristor control with integrated bypass contactor (reduces power consumption) |
| • Multiple starting modes: voltage ramp, torque control, الحد الحالي | |
| • Soft stop function (prevents water hammer, ideal for pump loads) | |
| • 15 motor protection functions: الزائد, locked rotor, خسارة المرحلة, phase imbalance, earth fault, إلخ. | |
| • Modular design, supports DIN rail and door mounting | |
| • Graphic display with 4‑key operation, supports remote monitoring and parameter setting |
- Key Advantages
- Integrated bypass design: Automatically switches to bypass contactor after startup, lowers operating power consumption (≤1.5W) and extends thyristor service life
- Flexible communication: Built-in Modbus RTU/TCP, EtherNet/IP, BACnet for easy integration into industrial networks
- Comprehensive protection: Full motor, short-circuit and overload protection in compliance with IEC 60947-4-2
- Wide voltage compatibility: 208–600V AC universal input, globally applicable for complex grid conditions
- User-friendly operation: Removable HMI panel supports door mounting; status reading and parameter adjustment without shutdown
- Detailed Applications
4.1 Water Treatment & Fluid Handling
Large pump control: Centrifugal / axial / mixed flow pumps in municipal water supply and wastewater treatment plants; soft stop prevents water hammer and reduces pipeline pressure shock
Submersible sewage pumps: Reduces mechanical stress during startup, avoids cavitation and reverse flow impact, improves system reliability
Chemical process pumps: Smooth startup for high-viscosity fluid pumps, minimizes mechanical seal wear and extends service life
4.2 Manufacturing & Material Handling
Compressor systems: Smooth startup for air and refrigeration compressors, reduces grid impact and prevents belt slippage
Crushers / grinders: Heavy-duty crushing equipment in mining and building materials; current-limited startup controls mechanical shock and protects drive systems
Conveyor systems: Long-distance belt conveyors; smooth acceleration avoids material spillage and reduces belt tension stress
Mixers / agitators: Mixers in food and pharmaceutical industries; torque-controlled startup ensures process stability
4.3 Building & بنية تحتية
HVAC systems: Large fans (cooling towers, وحدات تكييف الهواء) والمضخات; soft starting reduces impact on building power grids
Metro / tunnel ventilation: Synchronous soft starting of multiple high-power fans to avoid interference with lighting and signaling systems
Fire pumps: Main and backup pumps in emergency fire systems; ensures reliable startup in compliance with fire safety codes
4.4 Special Industrial Applications
Pulp & paper: Vacuum / pressure fans for paper machines; smooth startup protects precision drive systems
Oilfield production: Pumping units and water injection pumps; adapts to harsh field environments and improves equipment reliability
Port machinery: Auxiliary motors for cranes and handling equipment; soft starting protects hydraulic systems
- Cross-Reference for International Brand Equivalents
| ماركة | مسلسل | نموذج | المعلمات الرئيسية | كسر القدرة | رمز الطلب |
| شنايدر | أتس48 | ATS48D32Q | 320أ, 208–600V, 100–240V control | 50ال | ATS48D32Q |
| سيمنز | 3RW55 | 3RW5546‑6HA14 | 300أ, 208–690V, 24V control | 50ال | 3RW5546‑6HA14 |
| إيتون | DMX | DMX300S600 | 300أ, 208–600V, 100–240V control | 50ال | DMX300S600 |
| روكويل | SMC‑50 | SMC‑50‑300A‑1 | 300أ, 208–600V, 100–240V control | 50ال | 150‑S300NBD |
| ايه بي بي | PST | PST300‑600‑70 | 300أ, 208–600V, 100–240V control | 50ال | PST300‑600‑70 |
- Complete ABB PSTX Series Model List (Standard Order Codes)
The PSTX series is available in various rated currents for different motor powers. Core models are listed below:
| التصنيف الحالي | نموذج | Standard Order Code | Compatible Power (400V) | Compatible Power (460V) |
| 30أ | PSTX30‑600‑70 | 1SFA898104R7000 | 15كيلوواط | 20HP |
| 37أ | PSTX37‑600‑70 | 1SFA898105R7000 | 18.5كيلوواط | 25HP |
| 45أ | PSTX45‑600‑70 | 1SFA898106R7000 | 22كيلوواط | 30HP |
| 60أ | PSTX60‑600‑70 | 1SFA898107R7000 | 30كيلوواط | 40HP |
| 72أ | PSTX72‑600‑70 | 1SFA898108R7000 | 37كيلوواط | 50HP |
| 85أ | PSTX85‑600‑70 | 1SFA898109R7000 | 45كيلوواط | 60HP |
| 105أ | PSTX105‑600‑70 | 1SFA898110R7000 | 55كيلوواط | 75HP |
| 142أ | PSTX142‑600‑70 | 1SFA898111R7000 | 75كيلوواط | 100HP |
| 170أ | PSTX170‑600‑70 | 1SFA898112R7000 | 90كيلوواط | 125HP |
| 210أ | PSTX210‑600‑70 | 1SFA898113R7000 | 110كيلوواط | 150HP |
| 300أ | PSTX300‑600‑70 | 1SFA898114R7000 | 160كيلوواط | 200HP |
| 370أ | PSTX370‑600‑70 | 1SFA898115R7000 | 200كيلوواط | 250HP |
| 470أ | PSTX470‑600‑70 | 1SFA898116R7000 | 250كيلوواط | 350HP |
| 570أ | PSTX570‑600‑70 | 1SFA898117R7000 | 315كيلوواط | 400HP |
| 720أ | PSTX720‑600‑70 | 1SFA898118R7000 | 400كيلوواط | 500HP |
| 840أ | PSTX840‑600‑70 | 1SFA898119R7000 | 450كيلوواط | 600HP |
- اختيار & Application Notes
- مطابقة التحميل: 300A fits 160kW motors at 400V and 200HP motors at 460V. Consider load type (fan / pump / compressor) and starting conditions during selection
- Installation notes: تركيب سكة DIN القياسية مقاس 35 مم; keep ≥50mm clearance above and below for heat dissipation; vertical installation recommended
- Communication setup: Modbus RTU supported by default; EtherNet/IP or BACnet can be enabled via parameter settings
- Protection configuration: Set overload curve, locked rotor protection, phase loss protection, إلخ., according to motor parameters to ensure safe operation
- Replacement selection: Match rated current, voltage range, control voltage and protection functions when replacing; prefer equivalent advanced smart soft starters
Unsuitable Applications
Applications requiring variable frequency speed control (ABB ACS series drives recommended)
Special voltage systems below 100V or above 600V
في الهواء الطلق / humid environments requiring IP20 or higher protection (protected version or enclosure required)
Key Differences Between ABB PSTX300-600-70-1 and PSTX300-600-70
- Official Model Definition & Order Codes
النموذج القياسي: PSTX300-600-70, official order code: 1SFA898114R7000
Model with suffix-1: PSTX300-600-70-1, typically corresponds to 1SFA898114R7001 (special configuration version)
- الاختلافات الأساسية
| غرض | PSTX300‑600‑70 (معيار) | PSTX300‑600‑70‑1 (‑1 Version) |
| Control voltage | 100–240V AC (50/60Hz universal) | 24في العاصمة (DC control supply) |
| Suffix meaning | “70” indicates standard AC control voltage | “‑1” typically indicates 24V DC control version |
| طلب | General industrial and commercial use, standard AC control circuits | Suitable for safety circuits, التحكم PLC, DC control systems and other low‑voltage control applications |
| تواصل | Identical: built‑in Modbus RTU/TCP, EtherNet/IP, BACnet | Identical |
| Core ratings | Identical: 300أ, 600V, integrated bypass, operating temp up to 60°C | Identical |
| Physical dimensions | Identical: 250×368×190mm, 12كجم, 35mm DIN rail mount | Identical |
- وصف تفصيلي
- Control voltage difference: This is the fundamental distinction. The standard version uses 100–240V AC control power, while the-1 version uses 24V DC to suit different control system power supplies
- Configuration positioning: The “-1” suffix in ABB soft starter naming generally denotes a 24V DC control version, designed for integration with PLC, DCS and other DC control systems, or safety applications requiring electrical isolation between control and main circuits
- Functional consistency: Except for control voltage, all core functions are identical:
300A rated operational current, suitable for 160kW (400V) / 200HP (460V) المحركات
3-phase fully controlled thyristor control with integrated bypass contactor (operating power ≤1.5W)
Multiple starting modes: voltage ramp, torque control, الحد الحالي
15 motor protection functions: الزائد, locked rotor, خسارة المرحلة, phase imbalance, earth fault, إلخ.
Removable graphic HMI panel with 15 language support
- توصيات الاختيار
- Control supply matching: Select standard version for AC control systems and-1 version for DC control systems
- Safety requirements: For safety applications requiring isolation between control and main circuits, the 24V DC-1 version is preferred
- Spare parts management: Distinguish between the two models to avoid failure due to control voltage mismatch
- Replacement compatibility: Identical mounting, communication and protection features; interchangeable with appropriate control power supply (subject to system compatibility check)
The only substantive difference between ABB PSTX300-600-70-1 and PSTX300-600-70 is the control voltage: standard version is 100–240V AC, while the-1 version is 24V DC. All other core parameters, functions and physical dimensions are identical. Selection should be based on control system power type and safety requirements.
المقاولين,قاطع الدائرة,العاكس للطاقة الشمسية,عداد كهرباء,البطاريات الشمسية


