ABB PSR/PSRC/PSE/PSTX series soft starter

Product positioning and core values

ABB soft starter is used for smooth start stop of three-phase AC motors, replacing direct start (DOL) and delta start, to solve problems such as surge current, mechanical stress, water hammer, etc.

Three core values:

Ensuring motor reliability: optimizing starting current, more than 10 motor protections

Improve installation efficiency: compact design+built-in bypass, saving space and reducing heat generation

Improve application capacity: torque control, pump cleaning, braking and other process functions

Comparison of Four Major Product Series

Series current range positioning core characteristics applicable scenarios

PSR 3-105 A Compact Basic Two Phase Control, 3 Potentiometer Debugging, DIN Rail Installation for Small Pumps, Fans, Simple Operating Conditions

PSRC 3-105A vortex compressor dedicated fixed parameter anti misoperation, starting<1s, resistant to 60 ℃ high temperature HVAC, vortex compressor

PSE 18-370 A efficient universal torque control, icon display screen, built-in Modbus water pump, fan, universal load

PSTX 30-1250 A high-end flagship model with internal triangle connection, graphic screen, 17 languages, fully protected for large pumps, crushers, long conveyors, heavy industry

Typical Applications and Exclusive Features

pump

Torque control: eliminate water hammer effect

Pump cleaning: reverse flushing to prevent blockage

Underload protection: prevent dry running damage

fan

Current limiting start: reduce impulse current

Dynamic braking: Shorten downtime

Static braking: prevent wind-induced reversal

compressor

PSRC dedicated:<1s fast start to ensure lubrication

Phase sequence protection: prevent reverse damage

conveyor

Overload protection: prevent overheating

Low speed jog: precise positioning

Lament mode: thyristor short circuit can still operate

Core technical parameters

Electrical specifications

Working voltage: 208-690 V AC

Control power supply: 100-250 V AC/24 V AC/DC

Starting ability: 4 x Ie for 6-10 seconds

Starting frequency per hour: standard 10 times, with fan up to 20 times

environmental conditions

Working temperature: -25 ℃ to+60 ℃

Altitude: ≤ 4000m (Capacity reduction required for 1000m and above)

Protection level: host IP00/IP20, remote keyboard IP66

communication skills

PSE/PSTX: Built in Modbus RTU

PSTX: Supports Anybus extensions such as Profibus, Profinet, EtherNet/IP, CANopen, etc

PSR: Optional bus adapter is required

Certification and Installation

Global Certification

Mandatory: CE, CCC, EAC, cULus

Marine: ABS, DNV, CCS, LR and other classification society certifications (PSE/PSTX)

Installation requirements

Minimum wall spacing: PSR25mm, PSE/PSTX 100-150mm

Maximum installation angle: 30 °

Recommended radiator/circuit breaker coordination: achieve Type1/Type2 short-circuit coordination

Accessories and Tools

Standard Accessories

Connection kit, cooling fan, terminal expansion, cable connector

Remote keyboard, USB debugging cable, I/O expansion module

software tool

ProSoft: Selection and Matching

SoftstarterCare: parameter configuration, fault diagnosis

PSTX Simulator: Computer Simulation Debugging

Key questions and answers

Question 1: What are the core differences and selection criteria of the four major product series?

Answer: PSR is a small basic model (3-105A), suitable for simple and light loading; PSRC is specifically designed for compressors, with fixed parameters for quick start-up; PSE is the universal main force (18-370A), with torque control suitable for water pumps; PSTX is a high-end high-power (30-1250A) that supports inner triangle and full protection, suitable for heavy loads and heavy industry. Prioritize the selection based on the motor current, application type, and whether communication and advanced functions are required.

Question 2: How does ABB soft starter solve water hammer and blockage problems in pump systems?

Answer: Smooth pump shutdown is achieved through torque control, eliminating pipeline water hammer and pressure fluctuations; Reverse start the flushing pipeline through the pump cleaning function to prevent impurities from accumulating and blocking; Cooperate with underload protection to avoid pump dry running damage, comprehensively improve the service life and fault free operation time of the pump system.

Question 3: What are the unique high-end features of PSTX compared to other series?

Answer: PSTX has unique internal delta wiring (up to 2160A current), a detachable IP66 graphic keyboard, 17 languages, dual current/current ramp, torque limitation, pump cleaning, limp mode, energy metering, PTC/PT100 temperature measurement, all-round fault warning, and supports the full range of Anybus bus extensions. It is the only flagship model that meets heavy industry and explosion-proof auxiliary scenarios.