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PSR72-600-70

The ABB PSR72‑600‑70 is a compact 3‑phase soft starter designed for smooth starting and stopping of three‑phase motors in industrial and commercial applications. It reduces mechanical stress and electrical inrush current by controlling the voltage applied to the motor during start‑up and shutdown. This soft starter is part of ABB’s PSR series, optimized for space‑efficient motor control installations where frequent starts and stops are required.

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Parameters Main Circuit Rated Operational Current: 72 A (continuous). Rated Operational Voltage: 208 – 600 V AC three‑phase. Rated Power (Typical): Approx. 22 kW at 230 V Approx. 37 kW at 400 V Approx. 45 kW at 500 V Control Circuit Control Supply Voltage: 100 – 240 V AC (50/60 Hz). Rated Frequency: 50/60 Hz. Control Logic: Front‑panel potentiometers for adjusting start/stop ramp times. Outputs Auxiliary Relays: RUN — indicates the motor is running. TOR — indicates the end of the ramp (full speed reached). Relays typically provide normally open (NO) contact outputs for integration with external control or indicator circuits. Performance & Adjustments Start Ramp Time: Adjustable (typically 0 – 20 s) to control acceleration. Stop Ramp Time: Adjustable (typically 0 – 20 s) for controlled deceleration. Voltage Control: Enables smooth ramping of applied voltage to reduce torque shock. Mechanical & Environmental Mounting: Designed for control cabinet installation; compact footprint for efficient panel layout. Operating Temperature: Suitable for typical industrial ambient conditions. Protection Rating: Basic industrial protection; intended for installation inside an enclosed panel. Physical Dimensions Width: Approximately 180 mm Height: Approximately 220 mm Depth: Approximately 70 mm Weight: Around 2.1 kg Typical Applications Starting and stopping three‑phase induction motors such as pumps, fans, compressors, and conveyors. Applications where reduced mechanical wear and lower electrical peak currents are desired. Motor control systems in manufacturing, processing plants, and HVAC installations.