1SFA896214R7000 ABB PSRC85-600-70 Softstarter 85 A 208–600 V AC

Why Choose the ABB PSRC85-600-70 Softstarter?

The ABB PSRC85-600-70 is a compact softstarter optimised for scroll compressor applications, providing controlled starting of three-phase motors while reducing electrical and mechanical stress during acceleration. Part of the ABB PSRC softstarter range, this model uses fixed settings specifically developed for reliable and straightforward control of scroll compressors.

The PSRC85-600-70 provides two-phase controlled soft starting through a voltage ramp and incorporates a built-in bypass, helping simplify installation and reduce power losses during normal operation. Its fixed configuration makes commissioning straightforward while providing consistent starting performance for compressor applications.

With a rated operational current of 85 A, an operational voltage range of 208–600 V AC and a 100–240 V AC, 50/60 Hz control supply, the PSRC85-600-70 is designed for three-phase scroll compressor motors. At 400 V, the model is rated for approximately 45 kW in normal-start, Class 10 in-line applications.

Key Advantages

• Purpose-designed softstarter for scroll compressor applications.
• 85 A rated operational current for three-phase motor starting.
• Wide 208–600 V AC operational voltage range.
• 100–240 V AC control supply at 50/60 Hz.
• Fixed settings optimised for fast and reliable scroll compressor starting.
• Built-in bypass helps reduce energy losses during normal operation.
• Two-phase controlled voltage ramp reduces starting stress on the compressor and electrical system.
• Compact design simplifies integration into industrial control panels.

Key Features

• ABB PSRC softstarter series.
• 85 A maximum rated operational current.
• 45 kW motor rating at 400 V for normal-start applications.
• 208–600 V AC rated operational voltage.
• 100–240 V AC rated control supply voltage.
• Two-phase controlled soft start using a voltage ramp.
• Integrated bypass for efficient operation after starting.
• Fixed parameters optimised specifically for scroll compressors.
• RUN relay output with normally open contact.
• Designed to handle up to 100 starts per hour under suitable operating conditions.
• IP10 main-terminal protection rating.

Reliable Soft Starting for Scroll Compressors

Scroll compressors can experience substantial electrical and mechanical stress during direct-on-line starting. The ABB PSRC85-600-70 controls the applied motor voltage during acceleration, helping limit starting current and providing a smoother transition to normal operating speed.

Once the motor has reached operating speed, the integrated bypass carries the motor current, reducing losses in the semiconductor components. With its fixed compressor-optimised settings, compact construction and straightforward wiring, the PSRC range provides a practical plug-and-play starting solution for HVAC, refrigeration and other equipment using three-phase scroll compressors.

Typical Applications

• Three-phase scroll compressors.
• Commercial air-conditioning systems.
• Industrial refrigeration equipment.
• HVAC compressor units.
• Chillers and cooling systems.
• Heat pump compressor systems.
• OEM refrigeration and climate-control machinery.