ABB Soft Starter PSE370-600-70-1

Model Breakdown & Basic Information

2. Parametri tecnici fondamentali

2.1 Electrical Parameters

2.2 Mechanical & Parametri Ambientali

3. Caratteristiche & Functions

3.1 Control Functions

Soft start modes: Voltage ramp control, torque ramp control

Soft stop modes: Voltage ramp stop, torque ramp stop

Current-limited start: Adjustable starting current limit to protect the grid and motor

Kick Start: For heavy-duty starting applications

Sequential starting: Supports sequential control of multiple motors

Auto restart: Automatically resumes operation after fault clearance

Reverse start: Requires external contactors

3.2 Funzioni di protezione

Electronic Overload Protection (EOL): Adjustable 30~100% Iₑ

Locked-rotor protection: Prevents motor burnout due to stalling

Underload protection: Monitors motor underload operation

Phase loss protection: Detects three-phase power loss

Overtemperature protection: Protects the soft starter from overheating

Phase imbalance protection: Prevents motor damage from unbalanced three-phase currents

3.3 Monitoring & Comunicazione

Language-neutral display: Symbol-based user interface, no language setup required

Relay outputs: RUN, TOR (coppia), and Event signals (NO contacts)

Built-in Modbus RTU communication: Supports industrial network integration

Optional external keypad: IP66 protection, adatto per ambienti difficili

4. Applicazioni

The PSE370-600-70-1 is designed for smooth starting and protection of light to medium-duty three-phase asynchronous motors. Typical applications include:

1. Pump systems: Prevents water hammer, protects pipes and valves
2. Fan systems: Reduces mechanical stress and grid impact
3. Compressors: Smooth starting, prolunga la vita utile dell'apparecchiatura
4. Conveyors: Avoids material spillage, ensures stable process control
5. Applicazioni industriali generali: General machinery requiring soft start/stop

Especially suitable for: Applications requiring basic soft start functions, limited budget, and compact space. The built-in bypass simplifies installation and lowers operating costs.

5. Comparison with Other Models in the Same PSE Series

6. Alternative & Upgrade Paths

6.2 Cross-Brand Alternatives

7. Installazione & Note sul cablaggio
8. Main circuit connection: Three-phase supply (L1/L2/L3) → Soft starter → Motor. Copper cable recommended; tighten terminals to specified torque.
9. Control circuit connection:

100~250V AC control supply

Start/stop signals (dry contacts)

Fault reset signal

Relay output signals (run/fault indication)

3. Communication connection: Connect to PLC or HMI via Modbus RTU interface
4. Cooling requirements: Install in well-ventilated area with sufficient clearance for heat dissipation
5. Raccomandazioni per la selezione
6. Select soft starter based on motor rated current (recommended Iₑ ≥ motor rated current)
7. For heavy-duty starting (per esempio., crushers, ball mills), PSTX Series three-phase control is recommended
8. Upgrade recommended for frequent starting (>10 starts/hour) or precise torque control
9. For network integration, choose PSTB Series with Modbus TCP/IP

The PSE370-600-70-1 is the largest economy soft starter in the ABB PSE series, providing reliable motor soft starting and basic protection with high cost-performance, suitable for most industrial applications.

Complete Model List & Order Numbers for ABB Soft Starters

1. Model Naming Convention

ABB soft starter models generally follow the format:

Series-Rated Current-Rated Voltage-Control Voltage(-Versione)

Order number format: 1SFA89XXXXR7000 (XXXX = series-specific code)

2. PSE Series (Easy-Use, Two-Phase Control, Built-in Bypass & Electronic Overload Protection)

Tensione nominale: 208~600V AC, control voltage: 100~250V AC, order prefix: 1SFA8971

3. PSR Series (Compatto, Two-Phase Control, Basic Soft Start/Stop)

Tensione nominale: 208~600V AC, control voltage: 70 (100~250V AC) / 11 (24A DC), order prefix: 1SFA8961

4. PSTX Series (Full-Intelligent, Three-Phase Control, Full Graphic Display, Advanced Functions)

Tensione nominale: 208~690V AC, control voltage: 100~250V AC, order prefix: 1SFA8982

5. PSTB Series (Smart, Built-in Modbus TCP/IP, Network Integration)

Tensione nominale: 208~600V AC, control voltage: 100~250V AC, order prefix: 1SFA8940

6. Selection Guide & Alternative
7. Series Selection Guide

Simple applications, limited budget: PSR Series (basic soft start/stop)

Pumps, fans and light-medium loads: PSE Series (built-in electronic overload protection)

Precise control and diagnostics: PSTX Series (three-phase control, full graphic display)

Industry 4.0 smart factories: PSTB Series (built-in Modbus TCP/IP)

2. Cross-series substitution

PSE370-600-70-1 alternatives:

Aggiornamento: PSTX370-690-70 (Ordine n. 1SFA898215R7000)-three-phase control, more advanced functions

Downgrade: PSR105-600-70 (Ordine n. 1SFA896115R7000)-basic functions, more economical

3. Cross-brand alternatives

Schneider: ATS48D37Q (370UN, similar functions)

Siemens: 3RW4443-6BC44 (370UN, integrated protection)

1. All above models are standard versions; special versions required for harsh environments (high altitude, high humidity)
2. Verify control voltage matches main circuit voltage before ordering
3. For frequent starting (>10 starts/hour) or heavy-duty applications, PSTX/PSTB Series three-phase units are recommended
4. Full specifications and latest pricing subject to ABB official catalog