abb softstarter PSTX1250-600-70 pstx (600v) range 1200 amp

Why Choose the PSTX1250-600-70 [1SFA898121R7000]

The softstarter PSTX1250-600-70 has a rated maximum operational current of 1250 A with an operating voltage span from 208...600 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/stop with voltage or torque ramp, built-in bypass, current limit, kickstart, jog, braking, and emergency/fire pump mode.
• Rated Operational Voltage: 208–600 V AC.
• Rated Operational Current: 1250 A (in-line connection); 2160 A (inside delta connection).
• Control Supply Voltage: 100–250 V AC, 50/60 Hz.
• Protection Rating: IP00 for main terminals; detachable display rated IP66 and 4× outdoor.
• Terminal Type and Size: Main circuit bars; connecting capacity control circuit up to 2.5 mm² rigid conductor.
• Overload Protection: Built-in electronic overload protection with dual overload and locked rotor protection.
• Communication Interfaces: Modbus RTU/TCP, Ethernet-IP, ProfiNet, Profibus, CANopen, BACnet, EtherCAT, DeviceNet, and optional ANYBUS modules.
• Mechanical Data: Weight 63.3 kg; tightening torque main circuit 45 N·m (398.3 N·m UL/CSA).

Trusted By Customers Worldwide

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