Introduction

The ABB PST210-600-70 (1SFA894012R7000) is an advanced industrial soft starter developed for controlled operation of medium- and high-power three-phase motors. It helps manage motor acceleration and deceleration, reducing the electrical and mechanical stresses commonly associated with conventional direct-on-line starting.

With a 210 A in-line current rating, the unit is suitable for a range of demanding applications, including pumping stations, compressors, ventilation systems, conveyors, and manufacturing machinery. Its electronic overload protection and adjustable motor-control parameters provide additional flexibility when configuring industrial motor-control systems.

For equipment manufacturers, system integrators, and maintenance teams, the PST210-600-70 offers a practical solution for improving motor-starting performance and supporting reliable operation in industrial environments.

Whether used in a new installation or as a replacement for an existing soft starter, this ABB model is a valuable option for applications requiring controlled motor starting, dependable protection, and flexible configuration.

Technical Specifications

Parameter	Specification
Brand	ABB
Model	PST210-600-70
Order Number	1SFA894012R7000
Product Type	Soft Starter
Product Series	PST
Main Circuit Voltage	208–600 V AC
Control Supply Voltage	100–250 V AC
Control Circuit Voltage	24 V DC
Rated Current (In-Line)	210 A
Rated Current (Inside Delta)	360 A
Motor Power (In-Line, 400 V)	110 kW
Motor Power (In-Line, 500 V)	132 kW
Motor Power (Inside Delta, 400 V)	184 kW
Motor Power (Inside Delta, 500 V)	250 kW
Rated Frequency	50/60 Hz
Overload Protection	Integrated Electronic Overload Protection
Connection Type	In-Line / Inside Delta
Dimensions	420 × 270 × 360 mm
Weight	21.5 kg / 47.40 lb

Proax+2

Recommended Related Models

The following ABB PST soft starters belong to the same product family and can be considered for different motor current and power requirements.

Model	Order Number	Product Type
PST175-600-70	1SFA894011R7000	Soft Starter
PST250-600-70	1SFA894013R7000	Soft Starter
PST300-600-70	1SFA894014R7000	Soft Starter
PST142-600-70	1SFA894010R7000	Soft Starter
PST105-600-70	1SFA894009R7000	Soft Starter

Popular Related Models

Other ABB soft starters and motor-control products that may be relevant to industrial automation projects include:

ABB PST30-600-70 Soft Starter
ABB PST37-600-70 Soft Starter
ABB PST44-600-70 Soft Starter
ABB PST50-600-70 Soft Starter
ABB PST60-600-70 Soft Starter
ABB PST72-600-70 Soft Starter
ABB PST85-600-70 Soft Starter
ABB PSTB370-600-70 Soft Starter

Applications

The ABB PST210-600-70 1SFA894012R7000 Soft Starter is designed for controlling the starting and stopping of three-phase asynchronous motors in industrial applications. With a rated in-line operational current of 210 A, it provides controlled motor acceleration and deceleration, helping reduce mechanical stress, starting current surges, and unnecessary wear on connected equipment.

Typical applications include:

Pumps and water treatment systems: Reduces water hammer and mechanical stress during motor starting and stopping.
Industrial fans and blowers: Provides controlled acceleration to protect fan assemblies and transmission components.
Compressors: Helps reduce starting stress on compressor motors and mechanical systems.
Conveyors and material handling: Supports smoother startup of conveyor belts and other motor-driven equipment.
Manufacturing machinery: Provides controlled motor operation in production lines and industrial processing systems.
HVAC installations: Helps manage the starting process of large ventilation and air-conditioning motors.

Advantages and Key Features

1. Controlled Motor Starting and Stopping

The PST210-600-70 uses soft-start technology to gradually increase motor voltage during startup. This helps reduce high inrush current and mechanical shock compared with direct-on-line starting.

2. High Current Capacity

With a 210 A rated operational current for in-line connection, this model is suitable for demanding industrial motor-control applications.

3. Flexible Connection Configuration

The soft starter supports both in-line and inside-delta motor connections, allowing engineers to select an appropriate configuration according to the motor and installation design.

4. Integrated Motor Protection

Built-in electronic overload protection helps monitor motor operating conditions and provides protection against overload-related problems.

5. Adjustable Starting Parameters

Users can configure motor-related parameters, including starting voltage, ramp time, and motor current settings, to match different load characteristics.

6. Reliable Industrial Operation

Designed for industrial motor-control systems, the PST series combines starting control and protection functions in one device, helping simplify motor-control cabinet design.

7. Flexible Control Supply

The control supply voltage range of 100–250 V AC supports integration into different industrial control systems. A 24 V DC control circuit is also supported.

Technical FAQs

Q1: What is the rated operational current of the ABB PST210-600-70?

The rated operational current is 210 A for an in-line connection. For an inside-delta connection, the rated operational current is 360 A under the specified operating conditions.

Q2: What main circuit voltage does this soft starter support?

The PST210-600-70 is designed for main circuit operating voltages up to 600 V AC, with a documented rated operational voltage range of 208–600 V AC.

Q3: What is the control supply voltage range?

Its control supply voltage range is 100–250 V AC at 50/60 Hz.

Q4: Does the PST210-600-70 support 24 V DC control?

Yes. The unit supports a 24 V DC control circuit, allowing it to work with compatible industrial control arrangements.

Q5: Can this soft starter be used with inside-delta motor connections?

Yes. The PST210-600-70 supports both in-line and inside-delta connections. The motor wiring and parameter settings must follow the applicable ABB installation instructions.

Q6: What motor power can the PST210-600-70 handle?

For in-line connections, its listed motor power ratings are 110 kW at 400 V and 132 kW at 500 V. For inside-delta connections, the corresponding ratings are 184 kW at 400 V and 250 kW at 500 V.

Q7: Does the PST210-600-70 have built-in overload protection?

Yes. It incorporates electronic motor overload protection. The protection settings should be configured according to the motor nameplate and application requirements.

Q8: What is the starting capacity of this model?

The listed starting capacity is 3 × Ie for 15 seconds at the specified maximum rated current. Actual suitability depends on the motor, load, and starting conditions.

Q9: What should be checked if the motor does not start?

Check the incoming power supply, control supply voltage, start command, motor wiring, protection status, and configured motor parameters. Also verify that no active fault or external interlock is preventing operation.

Q10: Why might the soft starter trip during motor acceleration?

Possible causes include excessive starting load, incorrect motor-current settings, an unsuitable ramp configuration, phase loss, or an undersized starter for the application. Check the fault indication and operating conditions before restarting the equipment.

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