ABB – 1SFA891002R4009 (PSS12-400B) – 5.5 kW Soft Starter, 12 A, 380–415V 3‑Phase

Main Features

• Manufacturer: ABB (formerly ASEA Brown Boveri)  

• Model/MPN: 1SFA891002R4009 — also known as PSS12-400B

• Device Type: Three-phase solid-state soft starter (PS S series, open-type housing)  

• Motor Rating: 5.5 kW (7.5 HP), supporting motors up to 12 A at 380–415 VAC, 50/60 Hz  

• Soft Start Capability: Limits inrush current and reduces mechanical stress during motor startup

• Adjustable Controls: Onboard potentiometers for start/stop ramp time and current limit adjustment

• Protection Features: Includes overload and phase-failure detection standardized for industrial environments

• Mounting & Connections: DIN-rail or panel mountable; load and supply terminals labelled T1/T2/T3 and L1/L2/L3  

• Status: Discontinued by ABB; widely available refurbished or from surplus dealers