Product Overview
The ABB 1SFA892008R1002 (PSS85/147-500L) is a high-performance solid-state soft starter belonging to ABB’s renowned PSS series of general-purpose motor control devices, engineered to deliver smooth, controlled starting and stopping for three-phase asynchronous motors rated from 45kW at 400V to 55kW at 500V. As a purpose-built alternative to traditional direct-on-line (DOL) and star-delta starters, the ABB 1SFA892008R1002 eliminates the devastating 6-8× inrush current spikes and mechanical shock inherent in hard-starting methods, protecting both the electrical network and the driven machinery from premature fatigue. The dual-rating architecture of the ABB 1SFA892008R1002 provides 85A continuous current capacity in standard in-line configuration (45kW @ 400V) and extends to 147A when deployed in inside-delta wiring (75kW @ 400V), offering exceptional application flexibility within a single compact device.Operating across a main circuit voltage range of 208-500V AC and energized by a 220-240V AC 50/60Hz control supply, the ABB 1SFA892008R1002 incorporates advanced thyristor-based voltage ramp control that gradually increases motor terminal voltage during startup, limiting inrush current to 1.5-4× rated value while delivering adjustable starting torque to match load requirements. The device’s built-in bypass contactor automatically shorts out the thyristors once the motor reaches full speed, reducing heat generation, minimizing energy losses, and extending semiconductor lifespan—a design philosophy that earned ABB’s soft starter platform recognition for “securing motor reliability” through over ten integrated motor protection features. With a compact footprint of just 181mm width × 340mm height × 265mm depth and weighing 8.6kg, the ABB 1SFA892008R1002 mounts directly to the control cabinet back panel or wall, requiring minimal installation space while delivering a complete motor starting solution in a single unit.Ideal for pumps, fans, compressors, conveyors, crushers, and mixers across water treatment, HVAC, mining, metallurgy, and petrochemical industries, the ABB 1SFA892008R1002 transforms brutal motor start-ups into gentle, controlled acceleration profiles. Its fieldbus plug compatibility enables seamless integration with ABB drives ecosystems and higher-level control systems, while the NO fault contact provides immediate alarm signaling to plant DCS/SCADA. As a globally standardized ABB product carrying CE, UL, and CCC certifications, the ABB 1SFA892008R1002 stands as the definitive choice for engineers seeking to eliminate water hammer, reduce mechanical stress, and extend motor service life in demanding industrial environments.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 1SFA892008R1002 |
| ABB Type Designation | PSS85/147-500L |
| Manufacturer | ABB (Switzerland/Sweden) |
| Product Type | Solid-State Soft Starter |
| Series | ABB PSS General-Purpose Soft Starter Series |
| Rated Operational Voltage (Main) | 208 – 500 V AC, three-phase |
| Rated Control Supply Voltage | 220 – 240 V AC (50/60 Hz) |
| Rated Control Circuit Voltage | 24 V DC |
| Rated Current (In-Line, 400V) | 85 A (45 kW) |
| Rated Current (Inside-Delta, 400V) | 147 A (75 kW) |
| Rated Power (400V, In-Line) | 45 kW |
| Rated Power (500V, In-Line) | 55 kW |
| Rated Power (400V, Inside-Delta) | 75 kW |
| Rated Power (500V, Inside-Delta) | 90 kW |
| Maximum Starting Current | 4 × Iₑ (adjustable) |
| Continuous Overload Capacity | 15% |
| Protection Rating | IP00 (IP20 with optional enclosure) |
| Fault Signal Contact | NO (Normally Open) |
| Communication | FieldBus Plug ready |
| Mounting Method | Wall-mount / DIN rail inside control cabinet |
| Physical Dimensions (W×H×D) | 181 × 340 × 265 mm |
| Weight | 8.6 kg |
| Operating Temperature | -25°C to +60°C |
| Certifications | CE, UL, CCC |
| Bypass | Built-in bypass contactor |
Main Features and Advantages
The ABB 1SFA892008R1002 delivers a comprehensive suite of motor control and protection capabilities that position it as the definitive soft starting solution for mid-power industrial motors, directly addressing the limitations of conventional DOL and star-delta starting methods.Elimination of Destructive Inrush Currents:The core value proposition of the ABB 1SFA892008R1002 lies in its ability to limit motor starting current to 1.5-4× rated value through controlled thyristor voltage ramp-up, compared to the 6-8× inrush typical of direct-on-line starting. This dramatic reduction in peak current eliminates voltage dips on the plant power network, prevents nuisance tripping of upstream breakers, and removes the electrical stress that degrades motor insulation over time. For facilities with weak utility feeds or shared transformers, the ABB 1SFA892008R1002 can be the difference between smooth operation and chronic power quality complaints.Dual-Rating Flexibility for Maximum Application Coverage:The unique 85A in-line / 147A inside-delta rating of the ABB 1SFA892008R1002 enables a single device to serve motors from 45kW up to 90kW simply by selecting the appropriate wiring topology. The inside-delta configuration increases current handling by approximately 60% while reducing thyristor current stress by 42%, allowing the ABB 1SFA892008R1002 to economically control larger motors without upsizing to a more expensive soft starter model. This flexibility dramatically reduces spare parts inventory for plants with diverse motor populations.
