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Description
Parameter
| Main Parameters | Value / Description |
|---|---|
| Product Model | PSS85/147-500L (Order Code 1SFA892008R1002) |
| Manufacturer | ABB |
| Product Category | Compact Soft Starter (PSS Series) |
| Rated Operational Current | 85 A (inline, nominal) / 147 A (inside-delta, nominal) |
| Heavy-Duty Rating | 72 A (inline, HD) / 124 A (inside-delta, HD) |
| Main Voltage Range | 208–500 V AC (50/60 Hz) — covers 220/230/240/380/400/415/440/480 V |
| Control Supply Voltage | 220–240 V AC, 50/60 Hz (L suffix = 220–240V AC; FC suffix = 24V DC — verify before ordering) |
| Rated Motor Power (inline) | 45 kW @ 400 V / 55 kW @ 500 V |
| Rated Motor Power (inside-delta) | 75 kW @ 400 V / 90 kW @ 500 V |
| Protection Class | IP00 (open-type, panel/cabinet mount required) |
| Operating Temperature | –25°C to +60°C |
| Overload Class | Class 1 (per IEC 60947-4-2) |
| Setup Method | 3× rotary switches (ramp-up, ramp-down, current limit) + 1× DIP (inline / inside-delta) |
| Relays (built-in) | 1× Fault signal relay (NO/NC), 1× Bypass signal relay (for external contactor) |
| Digital I/O | Start / Stop (1 DI each), Fault NO/NC (1 DO) |
| Mounting | Wall-mount or DIN-rail (via adapter), panel internal |
| Standards | CE, IEC 60947-1, EN 60947-4-2, UL508, CSA C22.2 No.14, CCC |
| Weight | ~8.6 kg |
Technical Principles and Innovative Values
Innovation Point 1 – Rotary-Switch Configuration, Zero Software. The 1SFA892008R1002 is configured entirely by three thumbwheel rotary switches (ramp-up time, ramp-down time, current limit %) and one DIP switch selecting inline vs. inside-delta wiring. No DriveWindow, no PC tool, no firmware revision headaches — a technician with a flathead screwdriver and the 2-page quick-start can commission it in 10 minutes. For plants where the MCC is 200 m from the engineering office and the WiFi doesn’t reach the pump house, this analog-simple approach is a feature, not a limitation.Innovation Point 2 – Inline + Inside-Delta Dual Wiring. The PSS85/147-500L supports both classic 3-wire inline (thyristors in series with each phase, 85 A rating) and 6-wire inside-delta (thyristors across each motor delta leg, 147 A rating — motor sees same phase voltage but thyristor current is line/√3). Same physical unit, 75 kW capability in delta vs. 45 kW inline at 400 V — the DIP switch tells the overload algorithm which mode, so you don’t buy a bigger frame just because the motor nameplate says “75 kW / 400 V delta.”Innovation Point 3 – Bypass Signal Relay = External Contactor Automation. Once the 1SFA892008R1002 finishes ramping, its bypass relay closes, giving you a clean NO contact to pick up an external 3-pole contactor (ABB AF145 class for this frame). The thyristors then stop switching, dissipation drops from ~290 W to ~55 W, and the motor runs on clean sinewave through the contactor. This “PSS handles ramp, contactor handles run” split is why PSS frames run cooler and last longer than “no-bypass-needed” designs under continuous duty.Innovation Point 4 – Current-Limit as a Tunable Knob, Not a Binary Trip. The current-limit rotary lets you cap starting current at 200%–500% of rated in steps — tunable to the application. Pumps want ~300–350% (need torque to break static friction but not overshoot pressure), conveyors want ~250% (don’t snap the belt), compressors want ~400% (high breakaway). The 1SFA892008R1002 lets you dial it per load without changing hardware.
Application Cases and Industry Value
Case – Food-Processing Compressor (Scandinavia). A 45 kW screw compressor on a chiller skid was across-the-line started, drawing 390 A inrush on a 400 V bus shared with the packaging line. Every compressor start dimmed the packaging-line photoeyes enough to cause a false-jam trip (~3 events/month, €4k lost time each). The plant swapped the star-delta starter for a ABB 1SFA892008R1002 PSS85/147-500L with 5 s ramp-up, 350% current limit, and an ABB AF145 bypass contactor on the PSS’s bypass relay. Inrush dropped to ~190 A, the photoeye false-trips went to zero, and the screw compressor’s coupling half (previous failure mode: shear-key wallowed out every 18 months) has now run 34 months without a coupling job. The maintenance lead’s CMMS note: “Sometimes the €900 part fixes what the €4000 part would’ve overcomplicated.”Case – Cement Plant Baghouse Fan (SE Asia). A baghouse induced-draft fan (55 kW @ 500 V, inside-delta) kept blowing the star-delta timer contacts — the 6-terminal changeover was arcing on every start because the fan’s inertia held rotor stationary for 2+ seconds. Retrofitting the 1SFA892008R1002 in inside-delta mode (147 A rating covers the 55 kW@500V motor) with 8 s ramp-up eliminated the across-the-line transition entirely — no star-delta contactor arcing, no timer relay to replace. The electrician’s feedback: “The PSS just sits there clicking once at start and once at stop. The star-delta timer relay bin is now just a spare-parts museum.”
Related Product Combination Solutions
If you’re building an MCC bay or sparing plan around the ABB 1SFA892008R1002 (PSS85/147-500L), these companions commonly share the BOM or the shelf:
- ABB AF145-30-11 – 3-pole bypass contactor matched to PSS85’s 85–147 A range; triggered by the 1SFA892008R1002‘s built-in bypass relay. Size the contactor to motor FLC, not to PSS thyristor rating.
- ABB PSS60/105-500L (1SFA892006R1002) – Smaller PSS sibling (60 A inline / 105 A delta, ~37 kW@400V inline); if your motor is 30–37 kW, this is the right frame, not the PSS85.
- ABB PSS105/181-500L (1SFA892009R1002) – Larger PSS sibling (105 A inline / 181 A delta, ~55 kW@400V inline); bump up here if the PSS85 is marginal.
- ABB PSR Series (e.g., PSR45) – Ultra-compact entry PSS alternative for <30 A / <15 kW loads; DIN-rail only, no bypass relay — cheaper if you truly don’t need external bypass.
- ABB PST / PSTB Series – The “big brother” of PSS; if your application is pump-specific (water hammer control, kick-start, pump-clean) or >300 A, jump from PSS to PSTB instead of over-sizing PSS.
- ABB ACS580-01-045A-4 – If the application does need speed control (VFD), the ACS580 45 kW frames are the natural upgrade from 1SFA892008R1002; same 45 kW@400V bracket, but adds 0–50Hz regulation.
- ABB Thermistor / Motor Protection Relay (e.g., MPRAxx) – Optional extra layer; the PSS85 has Class 1 overload built in, but PT100/stator-winding thermistor protection lives outside the PSS — add if the motor has winding RTDs.
