abb softstarter PSRC105-600-70 psrc range 105 amp

Why Choose the ABB PSRC105-600-70 Softstarter?

The ABB PSRC105-600-70 is a heavy-duty compressor softstarter engineered for smooth starting and stopping of three-phase motors in refrigeration, HVAC and industrial automation systems. As part of the advanced ABB PSRC softstarter range, this unit helps reduce electrical inrush current, minimise mechanical stress and improve the operational lifespan of compressors and driven equipment.

The PSRC series is specifically optimised for scroll compressor applications, delivering controlled acceleration while reducing pressure spikes and startup stress. Integrated bypass functionality improves efficiency by reducing heat generation and energy losses, while the robust compact design simplifies installation inside industrial control cabinets and HVAC systems.

With a rated operational current of 105 A and support for 208–600 V AC three-phase systems, the PSRC105-600-70 is ideal for refrigeration compressors, heat pumps, air conditioning systems and industrial motor applications requiring dependable soft starting performance.

Key Advantages

• Compact softstarter designed specifically for compressor applications.
• 105 A operational current rating for industrial compressor motors.
• 208–600 V AC three-phase operating voltage.
• Integrated built-in bypass relay reduces heat and energy losses.
• Fixed compressor-optimised startup characteristics.
• Helps reduce pressure shock and mechanical wear during startup.

Key Features

• ABB PSRC compact softstarter series.
• 105 A rated operational current.
• 55 kW motor power at 400 V AC.
• 100–240 V AC control voltage.
• Integrated bypass functionality.
• Two-phase controlled soft start through voltage ramp.
• RUN signal relay output included.
• Optional FieldBusPlug communication support.

Technical Specifications

• Manufacturer: ABB
• Series: PSRC / PSR Softstarters
• Model: PSRC105-600-70
• Part number: 1SFA896215R7000
• Product type: Compressor softstarter
• Rated operational current: 105 A
• Rated operational voltage: 208–600 V AC
• Control voltage: 100–240 V AC
• Rated control circuit voltage: 24 V DC
• Motor power rating: 55 kW at 400 V
• Motor power rating: 55 kW at 500 V
• Frequency: 50 / 60 Hz
• Input phases: 3-phase
• Protection rating: Main terminals IP10
• Mounting type: Panel mounting
• Terminal type: Main circuit bars
• Starting capacity: 4 × Ie for 6 s
• Starts per hour: Up to 100 starts per hour
• Dimensions (H × W × D): approx. 220 × 180 × 70 mm
• Weight: approx. 2.1 kg

Smooth Compressor Starting for HVAC and Refrigeration Systems

Softstarters such as the ABB PSRC105-600-70 gradually increase motor voltage during startup to reduce current peaks and mechanical stress. This improves operational reliability, reduces wear on compressor systems and helps protect electrical infrastructure from sudden startup loads.

The compact PSRC range is widely used in refrigeration and HVAC systems where reliable compressor starting, reduced pressure shock and compact installation dimensions are important. Integrated bypass technology improves efficiency while reducing enclosure heat build-up during continuous operation.

Typical Applications

• Refrigeration compressors.
• HVAC and air conditioning systems.
• Heat pump systems.
• Industrial cooling equipment.
• Industrial pumps and compressors.
• OEM automation and machinery panels.

Trusted by HVAC and Automation Engineers

ABB PSRC softstarters are trusted by refrigeration specialists, machine builders and industrial engineers to deliver reliable compressor starting, reduced mechanical stress and dependable long-term motor control performance.