ABB 1SFA898114R7000 PSTX300-690-70 Industrial Soft Starter

Description

The ABB 1SFA898114R7000 PSTX300-690-70 is a PSTX series softstarter used for controlling the starting and stopping process of three-phase motors. The unit supports a main voltage range up to 690 V AC and uses a 100–250 V AC, 50/60 Hz control supply. It has a rated operational current of 300 A for in-line connection and includes built-in bypass functionality for normal motor operation after the start sequence is completed. The PSTX300-690-70 provides voltage ramp and torque ramp control for motor starting and stopping, with functions including current limit, kick start, motor heating, pump cleaning, jog, braking, diagnostics, and sequence start. The softstarter is equipped with a detachable full graphic display with IP66 protection for parameter setting and operation monitoring. Communication options include hardwire control, Modbus RTU, and optional fieldbus modules for integration into industrial automation systems. The ABB PSTX300-690-70 is used in applications such as pumps, fans, compressors, conveyors, and other medium to large three-phase motor installations.

Parameter

Model: 1SFA898114R7000 PSTX300-690-70 Industrial Soft Starter 
Rated insulation voltage,Ui: 600 V / 690 V
Rated operation voltage,Ue: 208-600 / 690 V, 50 / 60 Hz
Voltage tolerance: +10% to -15%
Rated frequency: 50 / 60 Hz
Ambient temperature Storage: -25 °C to +70 °C (-13 °F to 158 °F)
Operation: -25 °C to +60 °C (-13 °F to 140 °F)
Degree of protection: IP66

Frequently asked questions

What is ABB 1SFA898114R7000 PSTX300-690-70?
ABB 1SFA898114R7000 PSTX300-690-70 is a PSTX series softstarter used for controlling the starting and stopping of three-phase motors. It provides controlled motor acceleration and deceleration through voltage ramp or torque ramp functions.

What is the function of ABB PSTX300-690-70?
The softstarter controls the motor starting and stopping process by regulating voltage and torque during operation. It also includes motor protection and monitoring functions for industrial motor applications.

What should be checked before replacing ABB 1SFA898114R7000?
Before replacement, confirm the complete part number, motor voltage, rated current, and system configuration to ensure compatibility with the existing softstarter installation. ABB product documentation should be used for correct selection and installation.

Application areas:
Industrial Centrifugal Fans: Limits excessive starting current spikes when accelerating high-inertia fan impellers on weak grids.
Rock Crushers & Shredders: Deploys a specialized high-torque kickstart feature to break through stalled or jammed crushing chambers.
Refrigeration Chillers: Drives medium-to-large 300A industrial coolant loops with internal bypasses to eliminate ongoing thermal losses.

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