abb softstarter PSE300-600-70 pse range 300 amp

Why Choose the ABB PSE300-600-70 Softstarter?

The ABB PSE300-600-70 is an advanced general-purpose softstarter engineered for smooth starting and stopping of three-phase motors in industrial automation and process control systems. As part of the intelligent ABB PSE softstarter range, this unit helps reduce electrical inrush current, minimise mechanical stress and improve the operational lifespan of motors and connected equipment.

The PSE series combines compact dimensions with advanced motor protection and control features, including built-in bypass, torque control, kick start and electronic overload protection. Its illuminated display and integrated Modbus RTU communication simplify commissioning, monitoring and integration into industrial automation systems.

With a rated operational current of 300 A and support for 208–600 V AC three-phase systems, the PSE300-600-70 is ideal for pumps, fans, compressors, conveyors and other industrial motor applications requiring reliable and energy-efficient soft starting performance.

Key Advantages

• Advanced general-purpose softstarter for industrial motor control.
• 300 A operational current rating for heavy-duty industrial motors.
• 208–600 V AC three-phase operating voltage.
• Integrated built-in bypass relay reduces heat and energy losses.
• Built-in Modbus RTU communication for automation integration.
• Includes overload, underload and locked rotor motor protection.

Key Features

• ABB PSE intelligent softstarter series.
• 300 A rated operational current.
• 132 kW motor power at 400 V AC.
• 100–250 V AC control voltage.
• Integrated bypass functionality.
• Soft start and stop through voltage or torque ramp.
• Built-in Modbus RTU communication.
• Integrated analogue output and event relay signalling.

Technical Specifications

• Manufacturer: ABB
• Series: PSE Softstarters
• Model: PSE300-600-70
• Part number: 1SFA897114R7000
• Product type: 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: 132 kW at 400 V
• Motor power rating: 160 kW at 500 V
• Motor power rating: 250 HP at 480/600 V
• Frequency: 50 / 60 Hz
• Input phases: 3-phase
• Protection rating: Main terminals IP00, control circuit IP20
• Mounting type: Panel mounting
• Terminal type: Main circuit bars
• Ramp time: 1–30 s start / 0–30 s stop
• Current limit function: 1.5–7 × Ie adjustable
• Integrated overload protection: Yes
• Communication: Modbus RTU
• Analog output: 4–20 mA
• Cooling system: Thermostat-controlled fan cooling
• Dimensions (H × W × D): approx. 435 × 190 × 237 mm
• Weight: approx. 11 kg

Advanced Soft Starting for Industrial Machinery

Softstarters such as the ABB PSE300-600-70 gradually increase motor voltage during startup to reduce current peaks and mechanical stress. This improves operational reliability, protects connected machinery and helps extend motor lifespan in demanding industrial environments.

The ABB PSE range is widely used where intelligent motor protection, efficient operation and advanced communication capabilities are required. Built-in bypass technology reduces energy losses while integrated monitoring functions simplify maintenance and diagnostics.

Typical Applications

• Industrial pumps and water systems.
• Fans and ventilation equipment.
• Conveyor and material handling systems.
• Compressors and processing equipment.
• HVAC and refrigeration systems.
• OEM automation systems and industrial control panels.

Trusted by Industrial Automation Engineers

ABB PSE softstarters are trusted worldwide by industrial engineers and machine builders for reliable motor starting, advanced protection functions and seamless automation integration.