ABB PSTX37-690-70 Softstarter (1SFA898204R7000)

The ABB PSTX37-690-70 is an advanced softstarter engineered for precise motor control in demanding industrial applications. With a rated current of 37 A and support for motors up to 30 kW (in-line) or 55 kW (inside delta), this intelligent softstarter ensures smooth motor starts and stops, reducing mechanical stress and extending equipment life.

It features torque and voltage ramp control, integrated bypass, advanced diagnostics, and full-fieldbus communication capability. With a detachable IP66 graphic display and robust motor protection functions, the PSTX37 is ideal for pumps, compressors, fans, and conveyor systems.

Technical Specifications

Model: PSTX37-690-70 ABB
Rated Operational Current (Ie): 37 A (in-line) / 64 A (inside delta)
Rated Operational Voltage: 208 … 690 V AC
Control Supply Voltage (Us): 100 … 250 V AC
Control Circuit Voltage (Uc): 24 V DC
Rated Frequency: 50/60 Hz
Operational Power:
– 9 kW @ 230 V (in-line)
– 18.5 kW @ 400 V (in-line)
– 22 kW @ 500 V (in-line)
– 30 kW @ 690 V (in-line)
– 15 kW @ 230 V (inside delta)
– 30 kW @ 400 V (inside delta)
– 37 kW @ 500 V (inside delta)
– 55 kW @ 690 V (inside delta)
Ramp Time: 1–120 seconds
Initial Voltage During Start: 10–99%
Starting Capacity: 4 × Ie for 10 seconds
Current Limit: Adjustable 1.5–7.5 × Ie
Service Factor: 100%

Functionality & Features

Control Modes: Voltage Ramp / Torque Ramp / Dual Current Limit
Integrated Bypass: Yes
Kickstart Function: Included
Analog Output: 0–10 V, 0–20 mA, 4–20 mA
Protection Functions:
– Electronic Overload (EOL)
– Locked Rotor / Underload / Overvoltage / Undervoltage
– Earth Fault / Voltage Imbalance / Phase Reversal
– Max Starts/Hour / Short Circuit Warning
Additional Functions:
– Emergency/Fire Mode
– Pump Cleaning / Motor Heating / Dynamic Brake
– Auto Restart / Sequence Start
Relay Outputs: Run, Bypass, Fault, Overload
LED Indicators:
– Green: Ready, Running
– Yellow: Protection
– Red: Fault
Display: Detachable full graphic display (IP66 / NEMA 4X)
Event Logging: Included
Communication:
– Modbus RTU, Modbus TCP
– Ethernet/IP, EtherCAT, Profinet, Profibus
– BACnet-IP, BACnet-MSTP, DeviceNet, CANopen

Electrical & Installation

Terminal Type: Cable Clamp
Main Circuit Connection:
– Hole Ø: 8.5 mm
Control Circuit: Rigid 1 × 2.5 mm²
Supply Circuit: Rigid 1 × 2.5 mm²
Tightening Torque:
– Main Circuit: 8 N·m
Protection Class: IP00 (Main Terminals)

Mechanical & Environmental

Dimensions (W × H × D): 150 × 314 × 198 mm
Net Weight: 4.6 kg
Gross Package Weight: 5.6 kg
Operating Temperature: -25°C to +60°C
Storage Temperature: -40°C to +70°C

Certifications & Compliance

UL/CSA Horsepower Ratings:
– 10 HP @ 208 V
– 10 HP @ 240 V
– 25 HP @ 480 V
– 30 HP @ 600 V
Max Operating Voltage: 690 V AC
CE Marked: Yes
RoHS Compliant: Yes – Directive 2011/65/EU & 2015/863 Amendment
REACH & TSCA: Compliant
WEEE Category: Category 5 – Small Equipment
DNV Certification: DNV Certificate, PSTX30…PSTX1250
Country of Origin: Sweden
Standards: IEC 60529, IEC 60947-1, ETIM EC000640

Key Features & Benefits

✅ Mid-Range 37 A Output: Controls motors up to 55 kW (inside delta).

✅ Soft Start & Stop: Advanced voltage and torque ramp with kickstart.

✅ Bypass Integrated: Simplifies wiring and boosts energy efficiency.

✅ Wide Protocol Support: Modbus, Profinet, Ethernet/IP, BACnet & more.

✅ Full Protection Suite: Includes overload, phase loss, and imbalance.

✅ Outdoor-Ready Display: Detachable IP66 keypad with clear UI.

✅ Built-In Analytics: Event log, motor diagnostics, time-to-trip alerts.

✅ Flexible Integration: Compatible with inside-delta and inline setups.

📦 Buy ABB PSTX37-690-70 Softstarter at Drive Outlet Megastore

At Drive Outlet Megastore, we offer unbeatable ABB PSTX37-690-70 prices.

Unlock high-reliability motor control with ABB’s feature-rich PSTX softstarter—built to simplify complex automation and reduce maintenance in every application.

Click here to get a quote or order now.

Every unit comes with a full 2-year warranty and fast UK delivery.