abb softstarter PSRC3-600-70 psrc range 3.9 amp

Why Choose the ABB PSRC3-600-70 Softstarter?

The ABB PSRC3-600-70 is a compact and reliable compressor-configured motor softstarter designed for smooth starting and stopping of three-phase motors in refrigeration, HVAC and industrial automation systems. As part of the trusted ABB PSR compact softstarter range, this unit helps reduce electrical inrush current, minimise mechanical stress and improve the operational lifespan of compressors and connected equipment.

The PSRC series is specifically optimised for compressor applications, offering controlled acceleration and deceleration while reducing pressure spikes and mechanical wear. Integrated bypass functionality improves efficiency and reduces heat generation, making installation easier and more energy efficient inside industrial control cabinets and HVAC panels.

With a rated operational current of 3.9 A and support for 208–600 V AC three-phase systems, the PSRC3-600-70 is ideal for refrigeration compressors, scroll compressors, heat pumps and compact industrial motor applications requiring dependable soft starting performance.

Key Advantages

• Compact softstarter designed for compressor applications.
• 3.9 A operational current rating for smaller three-phase motors.
• 208–600 V AC three-phase operating voltage.
• Integrated built-in bypass relay reduces heat and energy losses.
• Optimised compressor starting characteristics.
• Helps reduce pressure shock and mechanical stress during startup.

Key Features

• ABB PSRC compact softstarter series.
• 3.9 A rated operational current.
• 1.5 kW motor power at 400 V AC.
• 100–240 V AC control voltage.
• Integrated bypass functionality.
• Adjustable start and stop ramp settings.
• RUN signal relay output included.
• Compact DIN rail and panel mounting design.

Technical Specifications

• Manufacturer: ABB
• Series: PSRC / PSR Softstarters
• Model: PSRC3-600-70
• Product type: Compressor softstarter
• Rated operational current: 3.9 A
• Rated operational voltage: 208–600 V AC
• Control voltage: 100–240 V AC
• Motor power rating: 1.5 kW at 400 V
• Motor power rating: 2 HP at 480/600 V
• Frequency: 50 / 60 Hz
• Input phases: 3-phase
• Protection rating: IP20
• Mounting type: DIN rail / panel mounting
• Terminal type: Screw terminals
• Ramp time: 0–20 s start / 1–20 s stop
• Dimensions (H × W × D): approx. 140 × 45 × 114 mm
• Weight: approx. 0.4 kg

Smooth Compressor Starting for HVAC and Industrial Systems

Softstarters such as the ABB PSRC3-600-70 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.
• Compact conveyor and pump systems.
• 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.