abb softstarter PSTX300-600-70 pstx (600v) range 300 amp

Why Choose the ABB PSTX300-600-70 Softstarter?

The ABB PSTX300-600-70 is a premium advanced softstarter engineered for precise motor starting and stopping in demanding industrial environments. As part of the intelligent ABB PSTX softstarter series, this unit delivers advanced torque control, integrated motor protection and extensive communication capabilities for high-performance automation systems. The PSTX range is designed to improve operational reliability while reducing mechanical stress and electrical inrush current during motor startup.

Featuring sophisticated functionality including torque ramp control, kick start, pump cleaning, motor heating, emergency mode and built-in bypass technology, the PSTX300-600-70 provides exceptional flexibility for industrial motor applications. The detachable full-graphic keypad with IP66 protection simplifies commissioning, diagnostics and operational monitoring in both indoor and outdoor installations.

With a rated operational current of 300 A and support for 208–600 V AC three-phase systems, the PSTX300-600-70 is ideal for pumps, fans, compressors, conveyors and process machinery requiring intelligent motor control and advanced protection functions.

Key Advantages

• Advanced softstarter for intelligent industrial motor control.
• 300 A operational current rating for demanding industrial applications.
• 208–600 V AC three-phase operating voltage.
• Integrated built-in bypass relay improves efficiency and reduces heat.
• Built-in Modbus RTU communication with optional Anybus modules.
• Comprehensive motor protection including overload, locked rotor and underload monitoring.

Key Features

• ABB PSTX advanced softstarter series.
• 300 A rated operational current.
• 160 kW motor power at 400 V AC inline connection.
• 100–250 V AC control voltage.
• Integrated bypass functionality.
• Soft start and stop via voltage ramp or torque ramp.
• Built-in Modbus RTU communication.
• Analogue output support including 0–10 V and 4–20 mA.
• Full graphical detachable keypad with IP66 protection.
• Emergency mode, jog mode and dynamic brake functionality.

Technical Specifications

• Manufacturer: ABB
• Series: PSTX Softstarters
• Model: PSTX300-600-70
• Part number: 1SFA898114R7000
• Product type: Advanced softstarter
• Rated operational current: 300 A
• Rated operational voltage: 208–600 V AC
• Control voltage: 100–250 V AC
• Rated control circuit voltage: 24 V DC
• Motor power rating (inline): 160 kW at 400 V
• Motor power rating: 200 kW at 500 V
• Motor power rating: 250 HP at 480 V
• Motor power rating: 300 HP at 600 V
• Motor power rating (inside delta): 250 kW at 400 V
• Rated operational current inside delta: 480 A
• Frequency: 50 / 60 Hz
• Input phases: 3-phase
• Protection rating: IP00 main circuit / IP66 keypad
• Mounting type: Panel mounting
• Terminal type: Bar terminals
• Ramp time: 1–120 s adjustable
• Current limit function: 1.5–7.5 × Ie adjustable
• Integrated overload protection: Yes
• Communication: Modbus RTU, optional Anybus modules
• Analog outputs: 0–10 V, 0–20 mA, 4–20 mA
• Dimensions (H × W × D): approx. 470 × 258 × 279 mm
• Weight: approx. 18.5 kg

Advanced Motor Starting for Industrial Systems

Softstarters such as the ABB PSTX300-600-70 gradually increase motor voltage and torque during startup to reduce electrical stress and mechanical shock. This improves process reliability, protects connected equipment and reduces maintenance requirements in demanding industrial installations.

The ABB PSTX series is designed for advanced industrial applications requiring comprehensive motor protection and intelligent diagnostics. Features such as emergency mode, limp mode, sequence start and fieldbus communication enable seamless integration into modern automation platforms and industrial control systems.

Typical Applications

• Industrial pumping systems and water treatment plants.
• Fans and HVAC systems.
• Compressors and refrigeration systems.
• Conveyor and material handling systems.
• Mining, processing and heavy industrial machinery.
• OEM automation systems and industrial control panels.

Trusted by Industrial Automation Engineers

ABB PSTX softstarters are trusted worldwide for advanced motor control, intelligent diagnostics and reliable operation in demanding industrial applications.