Parameters:
Rated Voltage: 380–600 V AC (Three-phase)
Rated Current: 70 A
Motor Power:
Up to 55 kW at 600 V
Up to 45 kW at 400 V
Input Control Voltage: 24 V DC (external supply)
Output Frequency: 0 to 500 Hz
Bypass Contactors: Integrated bypass contactor for energy efficiency once the motor reaches full speed
Cooling Method: Forced air cooling (fan-assisted)
Overload Capacity:
150% of rated current for 60 seconds
110% of rated current for 1 minute
Dimensions (H x W x D): Approx. 400 x 250 x 250 mm (varies depending on configuration)
Weight: Approx. 8 kg (varies depending on configuration)
Degree of Protection: IP20 (For indoor use; optional kits available for enhanced protection)
Ambient Temperature Range: -10°C to +50°C (with derating above 40°C)
Control Method: Soft start with adjustable ramp-up and ramp-down times
Certifications: CE marking, UL listed, IEC compliant
The ABB PSTX85-600-70 is engineered to control the acceleration of motors, limiting the initial current surge during start-up. This helps prevent motor and system damage, particularly in systems like pumps, fans, compressors, and conveyors, where motor control is crucial. It also reduces the likelihood of voltage dips that can affect the power supply system.