abb softstarter PSTX840-690-70 pstx (690v) range 840 amp

Why Choose the PSTX840-690-70 [1SFA898219R7000]

The softstarter PSTX840-690-70 has a rated maximum operational current of 840 A with an operating voltage span from 208...690 V AC. The rated control voltage is between 100...250 V AC at 50/60 Hz. PSTX features a three-phase control soft start and stop through a voltage or a torque ramp. It has built-in bypass for easy installation and energy saving. A RUN, TOR and Event signal is available from relay outputs in NO (normally open state). The PSTX has functions such as current limit, kickstart, analog output, EOL, motor heating and pump cleaning. PSTX also features features jog, braking, stand-still brake, diagnostics, sequence start and emergency/fire pump mode as standard.To interact with PSTX, it has a detachable full graphic display with IP66 and 4x outdoor rating. There are four ways to communicate with PSTX. It can be done by hardwire inputs Start/Stop/Reset of fault, and by three programmable digital inputs. Another popular option is the built-in Fieldbus communication Modbus RTU and incl optional ANYBUS modules with every major protocol such as for example Profinet, Profibus, Modbus TCP, Ethernet IP and others. Another way to communicate with PSTX is to use an external adaptor and a Fieldbus plug. PSTX is the complete alternative for any motor starting application. It’s suitable for medium to large-sized three-phase motors with nominal currents from 30...1250 A inline connection or 52...2160 A inside delta connection. Typical applications are, for example, pumps, fans, compressors, and conveyors.

Technical Specification

• Function: Soft start and stop with voltage or torque ramp, includes built-in bypass, current limit, kickstart, jog, braking, stand-still brake, diagnostics, sequence start and emergency/fire pump mode.
• Rated Operational Voltage: 208 to 690 V AC three-phase.
• Rated Operational Current: 840 A in-line connection; 1455 A inside delta connection.
• Rated Operational Power: Up to 800 kW (in-line) and 1400 kW (inside delta) depending on voltage.
• Control Voltage: 100 to 250 V AC, 50/60 Hz; Control circuit voltage 24 V DC.
• Terminal Type and Size: Main circuit terminals with bars, tightening torque 45 N·m; control circuit connections up to 2.5 mm² rigid conductors.
• Protection Rating: Main terminals IP00; full unit meets IEC 60529/IP66 at detachable graphic display.
• Communication: Modbus RTU, Modbus TCP, Ethernet/IP, EtherCAT, DeviceNet, CANopen, Profibus, Profinet, BACnet-IP/MSTP available.
• Overload Protection: Built-in electronic overload protection with multiple motor and line protections including bypass open, earth fault, under- and over-voltage, and phase reversal.

Trusted By Customers Worldwide

"Specified by UK panel builders for dependable control." Controls Engineer, UK