PSTB720-600-70

Name: PSTB720-600-70
Brand: ABB
SKU: PSTB720-600-70

The ABB PSTB720-600-70 soft starter is a high-performance motor control solution designed for industrial applications. It features advanced motor protection and control, with a maximum rated operational current of 720 amps for in-line and 1247 amps for inside delta connections.

Product ModelPSTB720-600-70

Material Number1SFA894018R7000

Product ID90319

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. High Operational CurrentThe PSTB720-600-70 soft starter supports high operational currents, making it suitable for demanding industrial applications. It can handle up to 720 amps for in-line connections and 1247 amps for inside delta connections, ensuring reliable motor operation under various load conditions.
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2. Advanced Motor ProtectionEquipped with advanced motor protection features, the PSTB720-600-70 soft starter provides comprehensive protection against phase imbalance, phase reversal, locked rotor, and thyristor overtemperature. This ensures the motor is safeguarded against potential hazards, extending its lifespan and improving overall reliability.
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3. User-Friendly InterfaceThe soft starter features a user-friendly keypad with a clear text display, allowing for easy setup and operation. It supports 13 user languages, making it accessible to a global workforce. The interface is designed to minimize complexity, ensuring that users can quickly configure the device to meet their specific needs.
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Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Product Net Width

436 mm

Product Net Height

515 mm

Product Net Depth / Length

381 mm

Product Net Weight

55 kg

Rated Operational Voltage

Main Circuit 208 ... 600 V AC

Rated Control Supply Voltage (Us)

100 ... 250 V AC

4. Flexible Control OptionsThe PSTB720-600-70 soft starter offers flexible control options, including hardware inputs, keypad control, fieldbus communication, and external keypad control. This flexibility allows users to integrate the soft starter seamlessly into their existing control systems, enhancing overall system efficiency and reliability.

5. Compact Design and Easy InstallationThe compact design of the PSTB720-600-70 soft starter makes it ideal for installations where space is limited. It features a built-in bypass contactor, reducing installation time and saving energy. The device is also designed to minimize environmental impact, using recyclable materials and adhering to existing environmental laws.

Rated Control Circuit Voltage (Uc)

DC Operation 24 V

Rated Frequency (f)

50/60 Hz Main Circuit 50 / 60 Hz

Rated Operational Power - In-Line Connection (Pe)

(400 V) 400 kW (500 V) 500 kW

Rated Operational Current - In-Line Connection (Ie)

720 A

Rated Operational Power - Inside Delta Connection

at 400 V 710 kW at 500 V 880 kW

Rated Operational Current - Inside Delta Connection

1247 A

Service Factor Percentage

115 %

Overload Protection

Build-in electronic overload protection

Integrated Electronic Overload

Yes

Adjustable Rated Motor Current Ie

30 ... 115 %

Starting Capacity at Maximum Rated Current Ie

3xIe for 15s

Ramp Time

0 ... 120 second [unit of time] 1 ... 120 second [unit of time]

Initial Voltage During Start

30 ... 70 %

Step Down Voltage Special Ramp

100 ... 30 %

Current Limit Function

1.5 ... 7xIe

Switch for Inside Delta Connection

Yes

Run Signal Relay

Yes

By-pass Signal Relay

Yes

Fault Signal Relay

Yes

Overload Signal Relay

Yes

Analog Outputs

0â¦10 volts 0â¦20 mA 4â¦20 mA

Signal Indication Ready to Start/Standby ON (LED)

Green

Signal Indication Protection (LED)

Yellow

Signal Indication Fault (LED)

Red

Number of Starts Per Hour at 3.5*Ie for 7 sec. 50% ON Time 50% OFF Time

Communication

FiledBusPlug(Standard)

Degree of Protection

acc. to IEC 60529, IEC 60947-1, EN 60529 Main Terminals IP00

Terminal Type

Main Circuit: Bars

Connecting Capacity Main Circuit

Hole Diameter 12.5 mm Width and Thickness 40x6 mm

Connecting Capacity Control Circuit

Rigid 1 x 2.5 mmÂ² Rigid 2 x 1.5 mmÂ²

Connecting Capacity Supply Circuit

Rigid 1 x 2.5 mmÂ²

Tightening Torque

Control Circuit 0.5 NÂ·m Main Circuit 45 NÂ·m Supply Circuit 0.5 NÂ·m

Product Main Type

PSTB720

Ambient Air Temperature

Operation 0 ... +50 Â°C Storage -25 ... +70 Â°C

Object Classification Code

ETIM 7

EC000640 - Soft starter

ETIM 8

EC000640 - Soft starter

ETIM 9

EC000640 - Soft starter

eClass

V11.0 : 27370907

UNSPSC

39121521

Manufacturer ID

1SFA894018R7000