ABB 1SFA899003R1000 PSTEK External Keypad – Remote HMI for PST/PSTB Softstarters

The ABB 1SFA899003R1000​ is ABB’s dedicated PSTEK external keypad, a rugged human-machine interface (HMI) accessory engineered to relocate the complete operational control of ABB PST and PSTB softstarters from inside the electrical enclosure to the outside of the cabinet door. Identified in ABB’s catalog under the product code PSTEK (also referenced as PST-EK), the ABB 1SFA899003R1000​ is designed for the full PST and PSTB family—covering the PST 30…300 range and the larger PSTB 370…1050 models. Its role is simple but highly practical: bring local start/stop, parameter adjustment, fault reading, and parameter copy functions to a safe, accessible position on the enclosure front, eliminating the need to open the cabinet during daily operation.

As a true extension of the softstarter’s built-in interface, the ABB 1SFA899003R1000​ works in parallel with the unit’s onboard panel, replicating the same menu structure, language-neutral icons, and operational logic that ABB softstarters are known for. Connection is made through a dedicated shielded communication cable to the softstarter’s keypad port, and the device is automatically recognized by the host—no external power supply, addressing, or software configuration is required.

With an IP65-rated front panel, illuminated LCD, four-button navigation, and LED status indication, the ABB 1SFA899003R1000​ is built for harsh industrial conditions. It is supplied as a complete kit including a 3-meter (approximately 10 ft) cable, mounting hardware, drilling template, and installation instructions, making it a fast, safe, and cost-effective upgrade for any PST/PSTB installation.