ABB PSR85-600-70 Softstarter (1SFA896114R7000)

The ABB PSR85-600-70 softstarter is a compact and energy-efficient motor controller engineered for industrial three-phase motor applications. With a rated current of 85 A and operational voltage range of 208–600 V AC, this model delivers smooth motor acceleration and deceleration via voltage ramping. Integrated bypass contactor minimizes heat and energy loss during run mode, while status LEDs and onboard potentiometers make configuration easy.

This softstarter is ideal for pumps, compressors, fans, and conveyors, offering reliable motor starting in a compact footprint.

Technical Specifications

Model: PSR85-600-70 ABB
Rated Operational Current (Ie): 85 A
Rated Operational Voltage: 208 … 600 V AC
Control Supply Voltage (Us): 100 … 240 V AC
Control Circuit Voltage (Uc): 24 V DC
Rated Frequency: 50/60 Hz
Operational Power:
– 22 kW @ 230 V
– 45 kW @ 400 V
– 55 kW @ 500 V
Ramp Time: 1–10 s (Start), 0–20 s (Stop)
Initial Voltage During Start: 40–70%
Step Down Voltage: 100–60%
Starting Capacity: 4 × Ie for 6 s
Max Starts Per Hour: 10 (50% ON/OFF cycle)

Functionality & Indicators

Soft Start / Stop: Voltage ramp-based
Built-in Bypass Contactor: Yes
RUN Signal Relay: Yes (NO)
Bypass Signal Relay: Yes (NO)
LED Status Indicators:
– Start Ramp Completed (Green)
– Ready to Start (Green)
– Running (Green)
– Ramping (Green)
Communication Option: FieldBusPlug (external)
Electronic Overload Protection: No
Recommended MMS: MS495 (70–90 A)
Inside Delta Start: Not Supported
Current Limit Function: No

Electrical & Installation

Terminal Type: Bars
Main Circuit Connection:
– Rigid 1 × 10 … 95 mm²
– Rigid 2 × 6 … 35 mm²
Control Circuit:
– 1 × 0.75 … 2.5 mm²
– 2 × 0.75 … 2.5 mm²
Supply Circuit: 1 × 0.75 … 2.5 mm²
Tightening Torque:
– Main Circuit: 8 N·m
– Control Circuit: 0.6 N·m
– Supply Circuit: 0.6 N·m
Degree of Protection: IP10 (IEC 60529)

Mechanical & Environmental

Dimensions (W × H × D): 180 × 220 × 70 mm
Weight: 2.1 kg
Operating Temperature: -25°C to +60°C
Storage Temperature: -40°C to +70°C
Installation Category: III

Certifications & Compliance

CE Marked: Yes
RoHS: Compliant (2011/65/EU & 2015/863)
REACH: Certified
UL/CSA Horsepower Ratings:
– 25 HP @ 208 V
– 30 HP @ 240 V
– 60 HP @ 480 V
– 75 HP @ 600 V
Maximum UL Voltage: 600 V
WEEE Category: 5 – Small Equipment
Standards: IEC 60947-4-2, EN 60947-1

Key Features & Benefits

✅ 85 A Motor Softstarter: Handles up to 55 kW loads.

✅ Built-in Bypass: Reduces panel heat and energy usage.

✅ Compact Dimensions: Perfect for space-constrained panels.

✅ Easy Setup: Onboard potentiometers for ramp timing.

✅ Fieldbus Ready: Optional digital communication module.

✅ Status LEDs: Visual feedback for each phase of operation.

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Trusted across industrial environments for compressors, conveyors, and pumps, the PSR85-600-70 delivers cost-effective soft starting with easy installation and high reliability.

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