ABB PSTB840-600-70 Softstarter Overview

The ABB PSTB840-600-70 is a high-performance softstarter for motor control applications. This device handles a main circuit voltage from 208 V to 600 V AC. The ABB PSTB840-600-70 delivers 840 A rated operational current for in-line connection. Its control supply voltage ranges from 100 V to 250 V AC at 50/60 Hz. The product ID is 1SFA894019R7000 for accurate ordering. This softstarter includes built-in electronic overload protection for motor safety. The ABB PSTB840-600-70 supports both in-line and inside delta wiring configurations.

Technical Specifications

General Specifications

• Extended Product Type: PSTB840-600-70.

• Product ID: 1SFA894019R7000.

• EAN: 7320500255674.

• Catalog Description: Softstarter with 840 A rating for 208 to 600 V AC main circuit.

• Product Main Type: PSTB840.

• Minimum Order Quantity: 1 piece.

• Customs Tariff Number: 8503009999.

Electrical Ratings

• Rated Operational Voltage (Main Circuit): 208 V to 600 V AC.

• Rated Control Supply Voltage (Us): 100 V to 250 V AC.

• Rated Control Circuit Voltage (Uc): 24 V DC operation.

• Rated Frequency (f): 50/60 Hz for main circuit and control.

• Service Factor Percentage: 115%.

In-Line Connection Ratings

• Rated Operational Current (Ie): 840 A.

• Rated Operational Power at 400 V: 450 kW.

• Rated Operational Power at 500 V: 600 kW.

Inside Delta Connection Ratings

• Rated Operational Current: 1455 A.

• Rated Operational Power at 400 V: 800 kW.

• Rated Operational Power at 500 V: 1000 kW.

Protection and Starting Capabilities

• Overload Protection: Built-in electronic overload protection.

• Integrated Electronic Overload: Yes.

• Starting Capacity at Maximum Rated Current Ie: 3 x Ie for 15 seconds.

• Number of Starts Per Hour: 10 starts at 3.5 x Ie for 7 seconds with 50% ON/OFF time.

Adjustable Parameters

• Ramp Time: 0 to 120 seconds.

• Initial Voltage During Start: 30% to 70%.

• Step Down Voltage Special Ramp: 100% to 30%.

• Current Limit Function: 1.5 to 7 x Ie.

• Switch for Inside Delta Connection: Yes.

Relay Outputs

• Run Signal Relay: Yes.

• By-pass Signal Relay: Yes.

• Fault Signal Relay: Yes.

• Overload Signal Relay: Yes.

Analog Outputs

• Voltage Output: 0 to 10 V.

• Current Outputs: 0 to 20 mA and 4 to 20 mA.

Signal Indication LEDs

• Ready to Start/Standby ON (LED): Green.

• Protection (LED): Yellow.

• Fault (LED): Red.

Communication

• Communication Interface: FieldBusPlug (Standard).

Physical Dimensions and Weight

• Product Net Width: 436 mm.

• Product Net Height: 515 mm.

• Product Net Depth / Length: 381 mm.

• Product Net Weight: 60 kg.

• Gross Weight: 72 kg.

• Package Level 1 Width: 500 mm.

• Package Level 1 Depth / Length: 600 mm.

• Package Level 1 Height: 460 mm.

• Package Level 1 Units: 1 piece.

Terminal Specifications

• Degree of Protection: IP00 according to IEC 60529, IEC 60947-1, EN 60529 (main terminals).

• Terminal Type (Main Circuit): Bars.

• Connecting Capacity (Main Circuit): Hole diameter 12.5 mm; width and thickness 40 x 6 mm.

• Connecting Capacity (Control Circuit): Rigid 1 x 2.5 mm² or 2 x 1.5 mm².

• Connecting Capacity (Supply Circuit): Rigid 1 x 2.5 mm².

• Tightening Torque (Control Circuit): 0.5 N·m.

• Tightening Torque (Main Circuit): 45 N·m.

• Tightening Torque (Supply Circuit): 0.5 N·m.

Environmental Conditions

• Ambient Air Temperature (Operation): 0°C to +50°C.

• Ambient Air Temperature (Storage): -25°C to +70°C.

Compliance and Certifications

• Declaration of Conformity – CE: 1SFA1-76.

• RoHS Declaration: 1SFC132035D0201.

• WEEE B2C / B2B: Business To Business.

• WEEE Category: 4 (Large Equipment with any external dimension more than 50 cm).

• Conflict Minerals Reporting Template (CMRT): Available.

Classifications

• ETIM 7/8/9: EC000640 – Soft starter.

• eClass (V11.0): 27370907.

• UNSPSC: 39121521.

• Object Classification Code: Q.

Installation Guide

Follow these steps to install the ABB PSTB840-600-70 correctly:

1. Ensure the main power supply is completely disconnected before installation.

2. Mount the softstarter vertically on a non-flammable surface.

3. Connect main circuit wiring using 40 x 6 mm bars with 12.5 mm holes.

4. Tighten main circuit terminals to 45 N·m torque specification.

5. Connect control supply voltage (100-250 V AC) to the control circuit.

6. Configure in-line or inside delta connection using the internal switch.

7. Set ramp time and initial voltage parameters for your motor.

8. Test the 1SFA894019R7000 with a motor at 3 x Ie for 15 seconds.

Packaging List

• ABB PSTB840-600-70 softstarter unit (1 piece)

• Mounting hardware kit (1 set)

• Terminal connection bars for main circuit (pre-installed)

• Installation and operation manual (1 copy)

• FieldBusPlug communication plug (1 piece)

Frequently Asked Questions (FAQ)

1. What is the maximum motor power for the ABB PSTB840-600-70?
At 400 V with inside delta connection, the PSTB840-600-70 handles 800 kW maximum.

2. Can this softstarter be used for inside delta wiring?
Yes, the 1SFA894019R7000 includes a switch for inside delta connection configuration.

3. What is the degree of protection for this device?
The main terminals have IP00 protection according to IEC 60529 standards.

4. Does the PSTB840-600-70 have built-in overload protection?
Yes, the ABB PSTB840-600-70 includes integrated electronic overload protection.

5. What analog output signals does this softstarter provide?
This softstarter provides 0-10 V, 0-20 mA, and 4-20 mA analog outputs.