Efficient motor protection and control with built-in electronic overload protection, adjustable rated motor current, and advanced communication options.
Product ModelPST44-600-70T
Material Number1SFA894004R7020
Product ID90318
Stock on Request
Last updated: 8/29/2026
Key Features
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1. Advanced Motor ProtectionThe ABB PST44-600-70T softstarter features built-in electronic overload protection, ensuring your motor is safeguarded against electrical stresses and potential damage.
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2. Adjustable Rated Motor CurrentWith an adjustable rated motor current of up to 115%, this softstarter can be tailored to meet the specific needs of your motor application, optimizing performance and efficiency.
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3. Efficient OperationThe softstarter reduces mechanical stress on your motor, increasing uptime and reducing maintenance costs. It also supports various applications like torque control and pump cleaning.
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4. Reliable CommunicationEquipped with built-in Modbus and Anybus modules, the PST44-600-70T supports all major communication protocols, making it easy to integrate into your existing control systems.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Product Net Width
160 mm
Product Net Height
260 mm
Product Net Depth / Length
196 mm
Product Net Weight
4.8 kg
Rated Operational Voltage
Main Circuit 208 ... 600 V AC
Rated Control Supply Voltage (Us)
100 ... 250 V AC
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5. Compact DesignThe compact design of the PST44-600-70T softstarter reduces installation time and panel size, saving space and energy while enhancing overall system efficiency.
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) 22 kW (500 V) 25 kW
Rated Operational Current - In-Line Connection (Ie)
44 A
Rated Operational Power - Inside Delta Connection
at 400 V 37 kW at 500 V 45 kW
Rated Operational Current - Inside Delta Connection
76 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
30
Communication
FiledBusPlug(Standard)
Degree of Protection
acc. to IEC 60529, IEC 60947-1, EN 60529 Main Terminals IP10
Terminal Type
Screw Terminals
Connecting Capacity Main Circuit
Rigid 1 x 10 ... 95 mm² Rigid 2 x 6 ... 35 mm²
Connecting Capacity Control Circuit
Rigid 1 x 2.5 mm² Rigid 2 x 1.5 mm²
Connecting Capacity Supply Circuit
Rigid 1 x 2.5 mm²
Tightening Torque
Control Circuit 0.5 N·m Main Circuit 6 N·m Supply Circuit 0.5 N·m
Product Main Type
PST44
Ambient Air Temperature
Operation 0 ... +50 °C Storage -25 ... +70 °C
Object Classification Code
Q
ETIM 7
EC000640 - Soft starter
ETIM 8
EC000640 - Soft starter
ETIM 9
EC000640 - Soft starter
eClass
V11.0 : 27370907
Manufacturer ID
1SFA894004R7020
ABB PST44-600-70T Softstarter - Efficient Motor Protection and Control | INDSLT
