PSTB1050-690-70

Name: PSTB1050-690-70
Brand: ABB
SKU: PSTB1050-690-70

The ABB PSTB1050-690-70 soft starter is designed for high-performance motor control, featuring built-in electronic overload protection and adjustable rated motor current. It supports both in-line and inside delta connections, ensuring reliable operation in harsh environments.

Product ModelPSTB1050-690-70

Material Number1SFA895020R7000

Product ID73312

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

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1. Advanced Motor ControlThe ABB PSTB1050-690-70 soft starter provides precise control over motor start and stop times, ensuring smooth and efficient operation. It supports adjustable ramp times from 1 to 30 seconds during start and stop phases.
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2. Built-in Electronic Overload ProtectionEquipped with integrated electronic overload protection, this soft starter safeguards your motor from excessive current, extending its lifespan and preventing damage.
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3. Flexible Connection OptionsCompatible with both in-line and inside delta connections, the PSTB1050-690-70 offers versatility in installation, making it suitable for various industrial applications.
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4. User-Friendly InterfaceFeaturing a full text display in 14 languages and a 4-button keypad, the soft starter is easy to set up and operate, reducing the need for extensive training.

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

60 kg

Rated Operational Voltage

Main Circuit 400 ... 690 V AC

Rated Control Supply Voltage (Us)

100 ... 250 V AC

5. Reliable Operation in Harsh EnvironmentsThe coated PCBAs ensure reliable operation even in harsh environments, making it an ideal choice for applications where durability is crucial.

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) 560 kW (500 V) 730 kW (690 V) 1000 kW

Rated Operational Current - In-Line Connection (Ie)

1050 A

Rated Operational Power - Inside Delta Connection

at 400 V 1000 kW at 500 V 1250 kW at 690 V 1700 kW

Rated Operational Current - Inside Delta Connection

1810 A

Service Factor Percentage

100 %

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

PSTB1050

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

1SFA895020R7000